publish libraries to avoid users to have to download them one by one

lib/Arduino-INA226/CHANGELOG

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+INA226 Arduino Library 1.0.0 / 08.04.2014
+======================================================================
+
+ * First release

lib/Arduino-INA226/INA226.cpp

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+/*
+INA226.cpp - Class file for the INA226 Bi-directional Current/Power Monitor Arduino Library.
+
+Version: 1.0.0
+(c) 2014 Korneliusz Jarzebski
+www.jarzebski.pl
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the version 3 GNU General Public License as
+published by the Free Software Foundation.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#if ARDUINO >= 100
+#include "Arduino.h"
+#else
+#include "WProgram.h"
+#endif
+
+#include <WSWire.h>
+
+#include "INA226.h"
+
+bool INA226::begin(uint8_t address)
+{
+    Wire.begin();
+    inaAddress = address;
+    return true;
+}
+
+bool INA226::configure(ina226_averages_t avg, ina226_busConvTime_t busConvTime, ina226_shuntConvTime_t shuntConvTime, ina226_mode_t mode)
+{
+    uint16_t config = 0;
+
+    config |= (avg << 9 | busConvTime << 6 | shuntConvTime << 3 | mode);
+
+    vBusMax = 36;
+    vShuntMax = 0.08192f;
+
+    writeRegister16(INA226_REG_CONFIG, config);
+
+    return true;
+}
+
+bool INA226::calibrate(float rShuntValue, float iMaxExpected)
+{
+    uint16_t calibrationValue;
+    rShunt = rShuntValue;
+
+    float iMaxPossible, minimumLSB;
+
+    iMaxPossible = vShuntMax / rShunt;
+
+    minimumLSB = iMaxExpected / 32767;
+
+    currentLSB = (uint16_t)(minimumLSB * 100000000);
+    currentLSB /= 100000000;
+    currentLSB /= 0.0001;
+    currentLSB = ceil(currentLSB);
+    currentLSB *= 0.0001;
+
+    powerLSB = currentLSB * 25;
+
+    calibrationValue = (uint16_t)((0.00512) / (currentLSB * rShunt));
+
+    writeRegister16(INA226_REG_CALIBRATION, calibrationValue);
+
+    return true;
+}
+
+float INA226::getMaxPossibleCurrent(void)
+{
+    return (vShuntMax / rShunt);
+}
+
+float INA226::getMaxCurrent(void)
+{
+    float maxCurrent = (currentLSB * 32767);
+    float maxPossible = getMaxPossibleCurrent();
+
+    if (maxCurrent > maxPossible)
+    {
+        return maxPossible;
+    } else
+    {
+        return maxCurrent;
+    }
+}
+
+float INA226::getMaxShuntVoltage(void)
+{
+    float maxVoltage = getMaxCurrent() * rShunt;
+
+    if (maxVoltage >= vShuntMax)
+    {
+        return vShuntMax;
+    } else
+    {
+        return maxVoltage;
+    }
+}
+
+float INA226::getMaxPower(void)
+{
+    return (getMaxCurrent() * vBusMax);
+}
+
+float INA226::readBusPower(void)
+{
+    return (readRegister16(INA226_REG_POWER) * powerLSB);
+}
+
+float INA226::readShuntCurrent(void)
+{
+    return (readRegister16(INA226_REG_CURRENT) * currentLSB);
+}
+
+float INA226::readShuntVoltage(void)
+{
+    float voltage;
+
+    voltage = readRegister16(INA226_REG_SHUNTVOLTAGE);
+
+    return (voltage * 0.0000025);
+}
+
+float INA226::readBusVoltage(void)
+{
+    int16_t voltage;
+
+    voltage = readRegister16(INA226_REG_BUSVOLTAGE);
+
+    return (voltage * 0.00125);
+}
+
+ina226_averages_t INA226::getAverages(void)
+{
+    uint16_t value;
+
+    value = readRegister16(INA226_REG_CONFIG);
+    value &= 0b0000111000000000;
+    value >>= 9;
+
+    return (ina226_averages_t)value;
+}
+
+ina226_busConvTime_t INA226::getBusConversionTime(void)
+{
+    uint16_t value;
+
+    value = readRegister16(INA226_REG_CONFIG);
+    value &= 0b0000000111000000;
+    value >>= 6;
+
+    return (ina226_busConvTime_t)value;
+}
+
+ina226_shuntConvTime_t INA226::getShuntConversionTime(void)
+{
+    uint16_t value;
+
+    value = readRegister16(INA226_REG_CONFIG);
+    value &= 0b0000000000111000;
+    value >>= 3;
+
+    return (ina226_shuntConvTime_t)value;
+}
+
+ina226_mode_t INA226::getMode(void)
+{
+    uint16_t value;
+
+    value = readRegister16(INA226_REG_CONFIG);
+    value &= 0b0000000000000111;
+
+    return (ina226_mode_t)value;
+}
+
+void INA226::setMaskEnable(uint16_t mask)
+{
+    writeRegister16(INA226_REG_MASKENABLE, mask);
+}
+
+uint16_t INA226::getMaskEnable(void)
+{
+    return readRegister16(INA226_REG_MASKENABLE);
+}
+
+void INA226::enableShuntOverLimitAlert(void)
+{
+    writeRegister16(INA226_REG_MASKENABLE, INA226_BIT_SOL);
+}
+
+void INA226::enableShuntUnderLimitAlert(void)
+{
+    writeRegister16(INA226_REG_MASKENABLE, INA226_BIT_SUL);
+}
+
+void INA226::enableBusOvertLimitAlert(void)
+{
+    writeRegister16(INA226_REG_MASKENABLE, INA226_BIT_BOL);
+}
+
+void INA226::enableBusUnderLimitAlert(void)
+{
+    writeRegister16(INA226_REG_MASKENABLE, INA226_BIT_BUL);
+}
+
+void INA226::enableOverPowerLimitAlert(void)
+{
+    writeRegister16(INA226_REG_MASKENABLE, INA226_BIT_POL);
+}
+
+void INA226::enableConversionReadyAlert(void)
+{
+    writeRegister16(INA226_REG_MASKENABLE, INA226_BIT_CNVR);
+}
+
+void INA226::setBusVoltageLimit(float voltage)
+{
+    uint16_t value = voltage / 0.00125;
+    writeRegister16(INA226_REG_ALERTLIMIT, value);
+}
+
+void INA226::setShuntVoltageLimit(float voltage)
+{
+    uint16_t value = voltage * 25000;
+    writeRegister16(INA226_REG_ALERTLIMIT, value);
+}
+
+void INA226::setPowerLimit(float watts)
+{
+    uint16_t value = watts / powerLSB;
+    writeRegister16(INA226_REG_ALERTLIMIT, value);
+}
+
+void INA226::setAlertInvertedPolarity(bool inverted)
+{
+    uint16_t temp = getMaskEnable();
+
+    if (inverted)
+    {
+        temp |= INA226_BIT_APOL;
+    } else
+    {
+        temp &= ~INA226_BIT_APOL;
+    }
+
+    setMaskEnable(temp);
+}
+
+void INA226::setAlertLatch(bool latch)
+{
+    uint16_t temp = getMaskEnable();
+
+    if (latch)
+    {
+        temp |= INA226_BIT_LEN;
+    } else
+    {
+        temp &= ~INA226_BIT_LEN;
+    }
+
+    setMaskEnable(temp);
+}
+
+bool INA226::isMathOverflow(void)
+{
+    return ((getMaskEnable() & INA226_BIT_OVF) == INA226_BIT_OVF);
+}
+
+bool INA226::isAlert(void)
+{
+    return ((getMaskEnable() & INA226_BIT_AFF) == INA226_BIT_AFF);
+}
+
+int16_t INA226::readRegister16(uint8_t reg)
+{
+    int16_t value;
+
+    Wire.beginTransmission(inaAddress);
+    #if ARDUINO >= 100
+        Wire.write(reg);
+    #else
+        Wire.send(reg);
+    #endif
+    Wire.endTransmission();
+
+    delay(1);
+
+    Wire.beginTransmission(inaAddress);
+    Wire.requestFrom(inaAddress, 2);
+    while(!Wire.available()) {};
+    #if ARDUINO >= 100
+        uint8_t vha = Wire.read();
+        uint8_t vla = Wire.read();
+    #else
+        uint8_t vha = Wire.receive();
+        uint8_t vla = Wire.receive();
+    #endif;
+    Wire.endTransmission();
+
+    value = vha << 8 | vla;
+
+    return value;
+}
+
+void INA226::writeRegister16(uint8_t reg, uint16_t val)
+{
+    uint8_t vla;
+    vla = (uint8_t)val;
+    val >>= 8;
+
+    Wire.beginTransmission(inaAddress);
+    #if ARDUINO >= 100
+        Wire.write(reg);
+        Wire.write((uint8_t)val);
+        Wire.write(vla);
+    #else
+        Wire.send(reg);
+        Wire.send((uint8_t)val);
+        Wire.send(vla);
+    #endif
+    Wire.endTransmission();
+}

lib/Arduino-INA226/INA226.h

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+/*
+INA226.h - Header file for the Bi-directional Current/Power Monitor Arduino Library.
+
+Version: 1.0.0
+(c) 2014 Korneliusz Jarzebski
+www.jarzebski.pl
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the version 3 GNU General Public License as
+published by the Free Software Foundation.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef INA226_h
+#define INA226_h
+
+#if ARDUINO >= 100
+#include "Arduino.h"
+#else
+#include "WProgram.h"
+#endif
+
+#define INA226_ADDRESS              (0x40)
+
+#define INA226_REG_CONFIG           (0x00)
+#define INA226_REG_SHUNTVOLTAGE     (0x01)
+#define INA226_REG_BUSVOLTAGE       (0x02)
+#define INA226_REG_POWER            (0x03)
+#define INA226_REG_CURRENT          (0x04)
+#define INA226_REG_CALIBRATION      (0x05)
+#define INA226_REG_MASKENABLE       (0x06)
+#define INA226_REG_ALERTLIMIT       (0x07)
+
+#define INA226_BIT_SOL              (0x8000)
+#define INA226_BIT_SUL              (0x4000)
+#define INA226_BIT_BOL              (0x2000)
+#define INA226_BIT_BUL              (0x1000)
+#define INA226_BIT_POL              (0x0800)
+#define INA226_BIT_CNVR             (0x0400)
+#define INA226_BIT_AFF              (0x0010)
+#define INA226_BIT_CVRF             (0x0008)
+#define INA226_BIT_OVF              (0x0004)
+#define INA226_BIT_APOL             (0x0002)
+#define INA226_BIT_LEN              (0x0001)
+
+typedef enum
+{
+    INA226_AVERAGES_1             = 0b000,
+    INA226_AVERAGES_4             = 0b001,
+    INA226_AVERAGES_16            = 0b010,
+    INA226_AVERAGES_64            = 0b011,
+    INA226_AVERAGES_128           = 0b100,
+    INA226_AVERAGES_256           = 0b101,
+    INA226_AVERAGES_512           = 0b110,
+    INA226_AVERAGES_1024          = 0b111
+} ina226_averages_t;
+
+typedef enum
+{
+    INA226_BUS_CONV_TIME_140US    = 0b000,
+    INA226_BUS_CONV_TIME_204US    = 0b001,
+    INA226_BUS_CONV_TIME_332US    = 0b010,
+    INA226_BUS_CONV_TIME_588US    = 0b011,
+    INA226_BUS_CONV_TIME_1100US   = 0b100,
+    INA226_BUS_CONV_TIME_2116US   = 0b101,
+    INA226_BUS_CONV_TIME_4156US   = 0b110,
+    INA226_BUS_CONV_TIME_8244US   = 0b111
+} ina226_busConvTime_t;
+
+typedef enum
+{
+    INA226_SHUNT_CONV_TIME_140US   = 0b000,
+    INA226_SHUNT_CONV_TIME_204US   = 0b001,
+    INA226_SHUNT_CONV_TIME_332US   = 0b010,
+    INA226_SHUNT_CONV_TIME_588US   = 0b011,
+    INA226_SHUNT_CONV_TIME_1100US  = 0b100,
+    INA226_SHUNT_CONV_TIME_2116US  = 0b101,
+    INA226_SHUNT_CONV_TIME_4156US  = 0b110,
+    INA226_SHUNT_CONV_TIME_8244US  = 0b111
+} ina226_shuntConvTime_t;
+
+typedef enum
+{
+    INA226_MODE_POWER_DOWN      = 0b000,
+    INA226_MODE_SHUNT_TRIG      = 0b001,
+    INA226_MODE_BUS_TRIG        = 0b010,
+    INA226_MODE_SHUNT_BUS_TRIG  = 0b011,
+    INA226_MODE_ADC_OFF         = 0b100,
+    INA226_MODE_SHUNT_CONT      = 0b101,
+    INA226_MODE_BUS_CONT        = 0b110,
+    INA226_MODE_SHUNT_BUS_CONT  = 0b111,
+} ina226_mode_t;
+
+class INA226
+{
+    public:
+
+	bool begin(uint8_t address = INA226_ADDRESS);
+	bool configure(ina226_averages_t avg = INA226_AVERAGES_1, ina226_busConvTime_t busConvTime = INA226_BUS_CONV_TIME_1100US, ina226_shuntConvTime_t shuntConvTime = INA226_SHUNT_CONV_TIME_1100US, ina226_mode_t mode = INA226_MODE_SHUNT_BUS_CONT);
+	bool calibrate(float rShuntValue = 0.1, float iMaxExcepted = 2);
+
+	ina226_averages_t getAverages(void);
+	ina226_busConvTime_t getBusConversionTime(void);
+	ina226_shuntConvTime_t getShuntConversionTime(void);
+	ina226_mode_t getMode(void);
+
+	void enableShuntOverLimitAlert(void);
+	void enableShuntUnderLimitAlert(void);
+	void enableBusOvertLimitAlert(void);
+	void enableBusUnderLimitAlert(void);
+	void enableOverPowerLimitAlert(void);
+	void enableConversionReadyAlert(void);
+
+	void setBusVoltageLimit(float voltage);
+	void setShuntVoltageLimit(float voltage);
+	void setPowerLimit(float watts);
+
+	void setAlertInvertedPolarity(bool inverted);
+	void setAlertLatch(bool latch);
+
+	bool isMathOverflow(void);
+	bool isAlert(void);
+
+	float readShuntCurrent(void);
+	float readShuntVoltage(void);
+	float readBusPower(void);
+	float readBusVoltage(void);
+
+	float getMaxPossibleCurrent(void);
+	float getMaxCurrent(void);
+	float getMaxShuntVoltage(void);
+	float getMaxPower(void);
+
+    private:
+
+	int8_t inaAddress;
+	float currentLSB, powerLSB;
+	float vShuntMax, vBusMax, rShunt;
+
+	void setMaskEnable(uint16_t mask);
+	uint16_t getMaskEnable(void);
+
+	void writeRegister16(uint8_t reg, uint16_t val);
+	int16_t readRegister16(uint8_t reg);
+};
+
+#endif

lib/Arduino-INA226/INA226_alert/INA226_alert.ino

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+/*
+    INA226 Bi-directional Current/Power Monitor. Alert Example.
+    Read more: http://www.jarzebski.pl/arduino/czujniki-i-sensory/cyfrowy-czujnik-pradu-mocy-ina226.html
+    GIT: https://github.com/jarzebski/Arduino-INA226
+    Web: http://www.jarzebski.pl
+    (c) 2014 by Korneliusz Jarzebski
+*/
+
+#include <Wire.h>
+#include <INA226.h>
+
+INA226 ina;
+
+void setup() 
+{
+  Serial.begin(115200);
+
+  Serial.println("Initialize INA226");
+  Serial.println("-----------------------------------------------");
+
+  // Default INA226 address is 0x40
+  ina.begin();
+
+  // Configure INA226
+  ina.configure(INA226_AVERAGES_1, INA226_BUS_CONV_TIME_1100US, INA226_SHUNT_CONV_TIME_1100US, INA226_MODE_SHUNT_BUS_CONT);
+
+  // Calibrate INA226. Rshunt = 0.01 ohm, Max excepted current = 4A
+  ina.calibrate(0.01, 4);
+
+  // Enable Bus Over-Voltage Alert
+  // ina.enableBusOvertLimitAlert();
+  // ina.enableBusUnderLimitAlert();
+  // ina.setBusVoltageLimit(3.33);
+
+  // Enable Shunt Over-Voltage Alert
+  // ina.enableShuntOverLimitAlert();
+  // ina.enableShuntUnderLimitAlert();
+  // ina.setShuntVoltageLimit(0.0055);
+
+  // Enable Power Over-Limit Alert
+  ina.enableOverPowerLimitAlert();
+  ina.setPowerLimit(0.130);
+
+  // ina.setAlertInvertedPolarity(true)
+}
+
+void loop()
+{
+  Serial.print("Bus voltage:   ");
+  Serial.print(ina.readBusVoltage(), 5);
+  Serial.println(" V");
+
+  Serial.print("Bus power:     ");
+  Serial.print(ina.readBusPower(), 5);
+  Serial.println(" W");
+
+  Serial.print("Shunt voltage: ");
+  Serial.print(ina.readShuntVoltage(), 5);
+  Serial.println(" V");
+
+  Serial.print("Shunt current: ");
+  Serial.print(ina.readShuntCurrent(), 5);
+  Serial.println(" A");
+
+  Serial.println("");
+  delay(1000);
+}

lib/Arduino-INA226/INA226_latch/INA226_latch.ino

@@ -0,0 +1,64 @@
+/*
+ INA226 Bi-directional Current/Power Monitor. Alert with latch Example.
+ Read more: http://www.jarzebski.pl/arduino/czujniki-i-sensory/cyfrowy-czujnik-pradu-mocy-ina226.html
+ GIT: https://github.com/jarzebski/Arduino-INA226
+ Web: http://www.jarzebski.pl
+ (c) 2014 by Korneliusz Jarzebski
+ */
+
+#include <Wire.h>
+#include <INA226.h>
+
+INA226 ina;
+
+void setup() 
+{
+  Serial.begin(115200);
+
+  Serial.println("Initialize INA226");
+  Serial.println("-----------------------------------------------");
+
+  // Default INA226 address is 0x40
+  ina.begin();
+
+  // Configure INA226
+  ina.configure(INA226_AVERAGES_1, INA226_BUS_CONV_TIME_1100US, INA226_SHUNT_CONV_TIME_1100US, INA226_MODE_SHUNT_BUS_CONT);
+
+  // Calibrate INA226. Rshunt = 0.01 ohm, Max excepted current = 4A
+  ina.calibrate(0.01, 4);
+
+  // Enable Power Over-Limit Alert
+  ina.enableOverPowerLimitAlert();
+  ina.setPowerLimit(0.130);
+  ina.setAlertLatch(true);
+}
+
+void loop()
+{
+  Serial.print("Bus voltage:   ");
+  Serial.print(ina.readBusVoltage(), 5);
+  Serial.println(" V");
+
+  Serial.print("Bus power:     ");
+  Serial.print(ina.readBusPower(), 5);
+  Serial.println(" W");
+
+
+  Serial.print("Shunt voltage: ");
+  Serial.print(ina.readShuntVoltage(), 5);
+  Serial.println(" V");
+
+  Serial.print("Shunt current: ");
+  Serial.print(ina.readShuntCurrent(), 5);
+  Serial.println(" A");
+
+  if (ina.isAlert())
+  {
+    // Latch will be removed here
+    Serial.println("ALERT");
+  }
+
+  Serial.println("");
+  delay(1000);
+}
+

lib/Arduino-INA226/INA226_simple/INA226_simple.ino

@@ -0,0 +1,132 @@
+/*
+    INA226 Bi-directional Current/Power Monitor. Simple Example.
+    Read more: http://www.jarzebski.pl/arduino/czujniki-i-sensory/cyfrowy-czujnik-pradu-mocy-ina226.html
+    GIT: https://github.com/jarzebski/Arduino-INA226
+    Web: http://www.jarzebski.pl
+    (c) 2014 by Korneliusz Jarzebski
+*/
+
+#include <Wire.h>
+#include <INA226.h>
+
+INA226 ina;
+
+void checkConfig()
+{
+  Serial.print("Mode:                  ");
+  switch (ina.getMode())
+  {
+    case INA226_MODE_POWER_DOWN:      Serial.println("Power-Down"); break;
+    case INA226_MODE_SHUNT_TRIG:      Serial.println("Shunt Voltage, Triggered"); break;
+    case INA226_MODE_BUS_TRIG:        Serial.println("Bus Voltage, Triggered"); break;
+    case INA226_MODE_SHUNT_BUS_TRIG:  Serial.println("Shunt and Bus, Triggered"); break;
+    case INA226_MODE_ADC_OFF:         Serial.println("ADC Off"); break;
+    case INA226_MODE_SHUNT_CONT:      Serial.println("Shunt Voltage, Continuous"); break;
+    case INA226_MODE_BUS_CONT:        Serial.println("Bus Voltage, Continuous"); break;
+    case INA226_MODE_SHUNT_BUS_CONT:  Serial.println("Shunt and Bus, Continuous"); break;
+    default: Serial.println("unknown");
+  }
+  
+  Serial.print("Samples average:       ");
+  switch (ina.getAverages())
+  {
+    case INA226_AVERAGES_1:           Serial.println("1 sample"); break;
+    case INA226_AVERAGES_4:           Serial.println("4 samples"); break;
+    case INA226_AVERAGES_16:          Serial.println("16 samples"); break;
+    case INA226_AVERAGES_64:          Serial.println("64 samples"); break;
+    case INA226_AVERAGES_128:         Serial.println("128 samples"); break;
+    case INA226_AVERAGES_256:         Serial.println("256 samples"); break;
+    case INA226_AVERAGES_512:         Serial.println("512 samples"); break;
+    case INA226_AVERAGES_1024:        Serial.println("1024 samples"); break;
+    default: Serial.println("unknown");
+  }
+
+  Serial.print("Bus conversion time:   ");
+  switch (ina.getBusConversionTime())
+  {
+    case INA226_BUS_CONV_TIME_140US:  Serial.println("140uS"); break;
+    case INA226_BUS_CONV_TIME_204US:  Serial.println("204uS"); break;
+    case INA226_BUS_CONV_TIME_332US:  Serial.println("332uS"); break;
+    case INA226_BUS_CONV_TIME_588US:  Serial.println("558uS"); break;
+    case INA226_BUS_CONV_TIME_1100US: Serial.println("1.100ms"); break;
+    case INA226_BUS_CONV_TIME_2116US: Serial.println("2.116ms"); break;
+    case INA226_BUS_CONV_TIME_4156US: Serial.println("4.156ms"); break;
+    case INA226_BUS_CONV_TIME_8244US: Serial.println("8.244ms"); break;
+    default: Serial.println("unknown");
+  }
+
+  Serial.print("Shunt conversion time: ");
+  switch (ina.getShuntConversionTime())
+  {
+    case INA226_SHUNT_CONV_TIME_140US:  Serial.println("140uS"); break;
+    case INA226_SHUNT_CONV_TIME_204US:  Serial.println("204uS"); break;
+    case INA226_SHUNT_CONV_TIME_332US:  Serial.println("332uS"); break;
+    case INA226_SHUNT_CONV_TIME_588US:  Serial.println("558uS"); break;
+    case INA226_SHUNT_CONV_TIME_1100US: Serial.println("1.100ms"); break;
+    case INA226_SHUNT_CONV_TIME_2116US: Serial.println("2.116ms"); break;
+    case INA226_SHUNT_CONV_TIME_4156US: Serial.println("4.156ms"); break;
+    case INA226_SHUNT_CONV_TIME_8244US: Serial.println("8.244ms"); break;
+    default: Serial.println("unknown");
+  }
+  
+  Serial.print("Max possible current:  ");
+  Serial.print(ina.getMaxPossibleCurrent());
+  Serial.println(" A");
+
+  Serial.print("Max current:           ");
+  Serial.print(ina.getMaxCurrent());
+  Serial.println(" A");
+
+  Serial.print("Max shunt voltage:     ");
+  Serial.print(ina.getMaxShuntVoltage());
+  Serial.println(" V");
+
+  Serial.print("Max power:             ");
+  Serial.print(ina.getMaxPower());
+  Serial.println(" W");
+}
+
+void setup() 
+{
+  Serial.begin(115200);
+
+  Serial.println("Initialize INA226");
+  Serial.println("-----------------------------------------------");
+
+  // Default INA226 address is 0x40
+  ina.begin();
+
+  // Configure INA226
+  ina.configure(INA226_AVERAGES_1, INA226_BUS_CONV_TIME_1100US, INA226_SHUNT_CONV_TIME_1100US, INA226_MODE_SHUNT_BUS_CONT);
+
+  // Calibrate INA226. Rshunt = 0.01 ohm, Max excepted current = 4A
+  ina.calibrate(0.01, 4);
+
+  // Display configuration
+  checkConfig();
+
+  Serial.println("-----------------------------------------------");
+}
+
+void loop()
+{
+  Serial.print("Bus voltage:   ");
+  Serial.print(ina.readBusVoltage(), 5);
+  Serial.println(" V");
+
+  Serial.print("Bus power:     ");
+  Serial.print(ina.readBusPower(), 5);
+  Serial.println(" W");
+
+
+  Serial.print("Shunt voltage: ");
+  Serial.print(ina.readShuntVoltage(), 5);
+  Serial.println(" V");
+
+  Serial.print("Shunt current: ");
+  Serial.print(ina.readShuntCurrent(), 5);
+  Serial.println(" A");
+
+  Serial.println("");
+  delay(1000);
+}

lib/Arduino-INA226/LICENSE

@@ -0,0 +1,674 @@
+GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
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+not convey it at all.  For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+  13. Use with the GNU Affero General Public License.
+
+  Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
+combined work, and to convey the resulting work.  The terms of this
+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+  14. Revised Versions of this License.
+
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    {one line to give the program's name and a brief idea of what it does.}
+    Copyright (C) {year}  {name of author}
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    {project}  Copyright (C) {year}  {fullname}
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.

lib/Arduino-INA226/README.md

@@ -0,0 +1,8 @@
+Arduino-INA226
+==============
+
+INA226 Bi-directional Current/Power Monitor Arduino Library
+
+Tutorials: http://www.jarzebski.pl/arduino/czujniki-i-sensory/cyfrowy-czujnik-pradu-mocy-ina226.html
+
+This library use I2C to communicate, 2 pins are required to interface.

lib/Arduino-IRremote/.gitignore

@@ -0,0 +1,3 @@
+*.un~
+*.sublime-project
+*.sublime-workspace

lib/Arduino-IRremote/.travis.yml

@@ -0,0 +1,30 @@
+language: python
+python:
+    - "2.7"
+    
+# Cache PlatformIO packages using Travis CI container-based infrastructure
+sudo: false
+cache:
+    directories:
+        - "~/.platformio"    
+
+env:
+    - PLATFORMIO_CI_SRC=examples/AiwaRCT501SendDemo PLATFORMIO_BUILD_FLAGS="-DSEND_AIWA_RC_T501"
+    - PLATFORMIO_CI_SRC=examples/IRrecord PLATFORMIO_BUILD_FLAGS="-DSEND_NEC -DSEND_SONY -DSEND_RC5 -DSEND_RC6"
+    - PLATFORMIO_CI_SRC=examples/IRrecvDemo
+    - PLATFORMIO_CI_SRC=examples/IRrecvDump
+    - PLATFORMIO_CI_SRC=examples/IRrecvDumpV2
+    - PLATFORMIO_CI_SRC=examples/IRrelay
+    - PLATFORMIO_CI_SRC=examples/IRsendDemo PLATFORMIO_BUILD_FLAGS="-DSEND_SONY"
+    - PLATFORMIO_CI_SRC=examples/IRtest PLATFORMIO_BUILD_FLAGS="-DSEND_NEC -DSEND_SONY -DSEND_RC5 -DSEND_RC6"
+    - PLATFORMIO_CI_SRC=examples/IRtest2 PLATFORMIO_BUILD_FLAGS="-DSEND_NEC -DSEND_SONY -DSEND_RC5 -DSEND_RC6"
+    - PLATFORMIO_CI_SRC=examples/JVCPanasonicSendDemo PLATFORMIO_BUILD_FLAGS="-DSEND_JVC -DSEND_PANASONIC"
+    - PLATFORMIO_CI_SRC=examples/LegoPowerFunctionsSendDemo PLATFORMIO_BUILD_FLAGS="-DSEND_LEGO_PF"
+    - PLATFORMIO_CI_SRC=examples/LegoPowerFunctionsTests PLATFORMIO_BUILD_FLAGS="-DSEND_LEGO_PF"
+    - PLATFORMIO_CI_SRC=examples/IRremoteInfo 
+
+install:
+    - pip install -U platformio
+
+script:
+  - platformio ci --lib="." --board=uno --board=leonardo --board=pro16MHzatmega168 --board=btatmega328 

lib/Arduino-IRremote/Contributing.md

@@ -0,0 +1,11 @@
+# Contribution Guidlines
+
+This library is the culmination of the expertise of many members of the open source community who have dedicated their time and hard work. The best way to ask for help or propose a new idea is to [create a new issue](https://github.com/z3t0/Arduino-IRremote/issues/new) while creating a Pull Request with your code changes allows you to share your own innovations with the rest of the community.
+
+The following are some guidelines to observe when creating issues or PRs:
+- Be friendly; it is important that we can all enjoy a safe space as we are all working on the same project and it is okay for people to have different ideas
+- [Use code blocks](https://github.com/adam-p/markdown-here/wiki/Markdown-Cheatsheet#code); it helps us help you when we can read your code! On that note also refrain from pasting more than 30 lines of code in a post, instead [create a gist](https://gist.github.com/) if you need to share large snippets
+- Use reasonable titles; refrain from using overly long or capitalized titles as they are usually annoying and do little to encourage others to help :smile:
+- Be detailed; refrain from mentioning code problems without sharing your source code and always give information regarding your board and version of the library 
+
+If there is any need to contact me then you can find my email on the README, I do not mind responding to emails but it would be in your own interests to create issues if you need help with the library as responses would be from a larger community with greater knowledge!

lib/Arduino-IRremote/Contributors.md

@@ -0,0 +1,22 @@
+## Contributors
+These are the active contributors of this project that you may contact if there is anything you need help with or if you have suggestions.
+
+- [z3t0](https://github.com/z3t0) : Active Contributor and currently also the main contributor.
+  * Email: zetoslab@gmail.com
+- [shirriff](https://github.com/shirriff) : An amazing person who worked to create this awesome library and provide unending support
+- [AnalysIR](https:/github.com/AnalysIR): Active contributor and is amazing with providing support!
+- [Informatic](https://github.com/Informatic) : Active contributor
+- [fmeschia](https://github.com/fmeschia) : Active contributor
+- [PaulStoffregen](https://github.com/paulstroffregen) : Active contributor
+- [crash7](https://github.com/crash7) : Active contributor
+- [Neco777](https://github.com/neco777) : Active contributor
+- [Lauszus](https://github.com/lauszus) : Active contributor
+- [csBlueChip](https://github.com/csbluechip) : Active contributor, who contributed major and vital changes to the code base.
+- [Sebazzz](https://github.com/sebazz): Contributor
+- [lumbric](https://github.com/lumbric): Contributor
+- [ElectricRCAircraftGuy](https://github.com/electricrcaircraftguy): Active Contributor
+- [philipphenkel](https://github.com/philipphenkel): Active Contributor
+- [MCUdude](https://github.com/MCUdude): Contributor
+- [marcmerlin](https://github.com/marcmerlin): Contributor (ESP32 port)
+
+Note: This list is being updated constantly so please let [z3t0](https://github.com/z3t0) know if you have been missed.

lib/Arduino-IRremote/IRremote.cpp

@@ -0,0 +1,200 @@
+//******************************************************************************
+// IRremote
+// Version 2.0.1 June, 2015
+// Copyright 2009 Ken Shirriff
+// For details, see http://arcfn.com/2009/08/multi-protocol-infrared-remote-library.html
+//
+// Modified by Paul Stoffregen <paul@pjrc.com> to support other boards and timers
+// Modified  by Mitra Ardron <mitra@mitra.biz>
+// Added Sanyo and Mitsubishi controllers
+// Modified Sony to spot the repeat codes that some Sony's send
+//
+// Interrupt code based on NECIRrcv by Joe Knapp
+// http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1210243556
+// Also influenced by http://zovirl.com/2008/11/12/building-a-universal-remote-with-an-arduino/
+//
+// JVC and Panasonic protocol added by Kristian Lauszus (Thanks to zenwheel and other people at the original blog post)
+// LG added by Darryl Smith (based on the JVC protocol)
+// Whynter A/C ARC-110WD added by Francesco Meschia
+//******************************************************************************
+
+// Defining IR_GLOBAL here allows us to declare the instantiation of global variables
+#define IR_GLOBAL
+#	include "IRremote.h"
+#	include "IRremoteInt.h"
+#undef IR_GLOBAL
+
+#ifndef IR_TIMER_USE_ESP32
+#include <avr/interrupt.h>
+#endif
+
+
+//+=============================================================================
+// The match functions were (apparently) originally MACROs to improve code speed
+//   (although this would have bloated the code) hence the names being CAPS
+// A later release implemented debug output and so they needed to be converted
+//   to functions.
+// I tried to implement a dual-compile mode (DEBUG/non-DEBUG) but for some
+//   reason, no matter what I did I could not get them to function as macros again.
+// I have found a *lot* of bugs in the Arduino compiler over the last few weeks,
+//   and I am currently assuming that one of these bugs is my problem.
+// I may revisit this code at a later date and look at the assembler produced
+//   in a hope of finding out what is going on, but for now they will remain as
+//   functions even in non-DEBUG mode
+//
+int  MATCH (int measured,  int desired)
+{
+ 	DBG_PRINT(F("Testing: "));
+ 	DBG_PRINT(TICKS_LOW(desired), DEC);
+ 	DBG_PRINT(F(" <= "));
+ 	DBG_PRINT(measured, DEC);
+ 	DBG_PRINT(F(" <= "));
+ 	DBG_PRINT(TICKS_HIGH(desired), DEC);
+
+  bool passed = ((measured >= TICKS_LOW(desired)) && (measured <= TICKS_HIGH(desired)));
+  if (passed)
+    DBG_PRINTLN(F("?; passed"));
+  else
+    DBG_PRINTLN(F("?; FAILED")); 
+ 	return passed;
+}
+
+//+========================================================
+// Due to sensor lag, when received, Marks tend to be 100us too long
+//
+int  MATCH_MARK (int measured_ticks,  int desired_us)
+{
+	DBG_PRINT(F("Testing mark (actual vs desired): "));
+	DBG_PRINT(measured_ticks * USECPERTICK, DEC);
+	DBG_PRINT(F("us vs "));
+	DBG_PRINT(desired_us, DEC);
+	DBG_PRINT("us"); 
+	DBG_PRINT(": ");
+	DBG_PRINT(TICKS_LOW(desired_us + MARK_EXCESS) * USECPERTICK, DEC);
+	DBG_PRINT(F(" <= "));
+	DBG_PRINT(measured_ticks * USECPERTICK, DEC);
+	DBG_PRINT(F(" <= "));
+	DBG_PRINT(TICKS_HIGH(desired_us + MARK_EXCESS) * USECPERTICK, DEC);
+
+  bool passed = ((measured_ticks >= TICKS_LOW (desired_us + MARK_EXCESS))
+                && (measured_ticks <= TICKS_HIGH(desired_us + MARK_EXCESS)));
+  if (passed)
+    DBG_PRINTLN(F("?; passed"));
+  else
+    DBG_PRINTLN(F("?; FAILED")); 
+ 	return passed;
+}
+
+//+========================================================
+// Due to sensor lag, when received, Spaces tend to be 100us too short
+//
+int  MATCH_SPACE (int measured_ticks,  int desired_us)
+{
+	DBG_PRINT(F("Testing space (actual vs desired): "));
+	DBG_PRINT(measured_ticks * USECPERTICK, DEC);
+	DBG_PRINT(F("us vs "));
+	DBG_PRINT(desired_us, DEC);
+	DBG_PRINT("us"); 
+	DBG_PRINT(": ");
+	DBG_PRINT(TICKS_LOW(desired_us - MARK_EXCESS) * USECPERTICK, DEC);
+	DBG_PRINT(F(" <= "));
+	DBG_PRINT(measured_ticks * USECPERTICK, DEC);
+	DBG_PRINT(F(" <= "));
+	DBG_PRINT(TICKS_HIGH(desired_us - MARK_EXCESS) * USECPERTICK, DEC);
+
+  bool passed = ((measured_ticks >= TICKS_LOW (desired_us - MARK_EXCESS))
+                && (measured_ticks <= TICKS_HIGH(desired_us - MARK_EXCESS)));
+  if (passed)
+    DBG_PRINTLN(F("?; passed"));
+  else
+    DBG_PRINTLN(F("?; FAILED")); 
+ 	return passed;
+}
+
+//+=============================================================================
+// Interrupt Service Routine - Fires every 50uS
+// TIMER2 interrupt code to collect raw data.
+// Widths of alternating SPACE, MARK are recorded in rawbuf.
+// Recorded in ticks of 50uS [microseconds, 0.000050 seconds]
+// 'rawlen' counts the number of entries recorded so far.
+// First entry is the SPACE between transmissions.
+// As soon as a the first [SPACE] entry gets long:
+//   Ready is set; State switches to IDLE; Timing of SPACE continues.
+// As soon as first MARK arrives:
+//   Gap width is recorded; Ready is cleared; New logging starts
+//
+#ifdef IR_TIMER_USE_ESP32
+void IRTimer()
+#else
+ISR (TIMER_INTR_NAME)
+#endif
+{
+	TIMER_RESET;
+
+	// Read if IR Receiver -> SPACE [xmt LED off] or a MARK [xmt LED on]
+	// digitalRead() is very slow. Optimisation is possible, but makes the code unportable
+	uint8_t  irdata = (uint8_t)digitalRead(irparams.recvpin);
+
+	irparams.timer++;  // One more 50uS tick
+	if (irparams.rawlen >= RAWBUF)  irparams.rcvstate = STATE_OVERFLOW ;  // Buffer overflow
+
+	switch(irparams.rcvstate) {
+		//......................................................................
+		case STATE_IDLE: // In the middle of a gap
+			if (irdata == MARK) {
+				if (irparams.timer < GAP_TICKS)  {  // Not big enough to be a gap.
+					irparams.timer = 0;
+
+				} else {
+					// Gap just ended; Record duration; Start recording transmission
+					irparams.overflow                  = false;
+					irparams.rawlen                    = 0;
+					irparams.rawbuf[irparams.rawlen++] = irparams.timer;
+					irparams.timer                     = 0;
+					irparams.rcvstate                  = STATE_MARK;
+				}
+			}
+			break;
+		//......................................................................
+		case STATE_MARK:  // Timing Mark
+			if (irdata == SPACE) {   // Mark ended; Record time
+				irparams.rawbuf[irparams.rawlen++] = irparams.timer;
+				irparams.timer                     = 0;
+				irparams.rcvstate                  = STATE_SPACE;
+			}
+			break;
+		//......................................................................
+		case STATE_SPACE:  // Timing Space
+			if (irdata == MARK) {  // Space just ended; Record time
+				irparams.rawbuf[irparams.rawlen++] = irparams.timer;
+				irparams.timer                     = 0;
+				irparams.rcvstate                  = STATE_MARK;
+
+			} else if (irparams.timer > GAP_TICKS) {  // Space
+					// A long Space, indicates gap between codes
+					// Flag the current code as ready for processing
+					// Switch to STOP
+					// Don't reset timer; keep counting Space width
+					irparams.rcvstate = STATE_STOP;
+			}
+			break;
+		//......................................................................
+		case STATE_STOP:  // Waiting; Measuring Gap
+		 	if (irdata == MARK)  irparams.timer = 0 ;  // Reset gap timer
+		 	break;
+		//......................................................................
+		case STATE_OVERFLOW:  // Flag up a read overflow; Stop the State Machine
+			irparams.overflow = true;
+			irparams.rcvstate = STATE_STOP;
+		 	break;
+	}
+
+	// If requested, flash LED while receiving IR data
+	if (irparams.blinkflag) {
+		if (irdata == MARK)
+			if (irparams.blinkpin) digitalWrite(irparams.blinkpin, HIGH); // Turn user defined pin LED on
+				else BLINKLED_ON() ;   // if no user defined LED pin, turn default LED pin for the hardware on
+		else if (irparams.blinkpin) digitalWrite(irparams.blinkpin, LOW); // Turn user defined pin LED on
+				else BLINKLED_OFF() ;   // if no user defined LED pin, turn default LED pin for the hardware on
+	}
+}

lib/Arduino-IRremote/IRremote.h

@@ -0,0 +1,344 @@
+
+//******************************************************************************
+// IRremote
+// Version 2.0.1 June, 2015
+// Copyright 2009 Ken Shirriff
+// For details, see http://arcfn.com/2009/08/multi-protocol-infrared-remote-library.html
+// Edited by Mitra to add new controller SANYO
+//
+// Interrupt code based on NECIRrcv by Joe Knapp
+// http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1210243556
+// Also influenced by http://zovirl.com/2008/11/12/building-a-universal-remote-with-an-arduino/
+//
+// JVC and Panasonic protocol added by Kristian Lauszus (Thanks to zenwheel and other people at the original blog post)
+// LG added by Darryl Smith (based on the JVC protocol)
+// Whynter A/C ARC-110WD added by Francesco Meschia
+//******************************************************************************
+
+#ifndef IRremote_h
+#define IRremote_h
+
+//------------------------------------------------------------------------------
+// The ISR header contains several useful macros the user may wish to use
+//
+#include "IRremoteInt.h"
+
+//------------------------------------------------------------------------------
+// Supported IR protocols
+// Each protocol you include costs memory and, during decode, costs time
+// Disable (set to 0) all the protocols you do not need/want!
+//
+#define DECODE_RC5           1
+#define SEND_RC5             1
+
+#define DECODE_RC6           1
+#define SEND_RC6             1
+
+#define DECODE_NEC           1
+#define SEND_NEC             1
+
+#define DECODE_SONY          1
+#define SEND_SONY            1
+
+#define DECODE_PANASONIC     1
+#define SEND_PANASONIC       1
+
+#define DECODE_JVC           1
+#define SEND_JVC             1
+
+#define DECODE_SAMSUNG       1
+#define SEND_SAMSUNG         1
+
+#define DECODE_WHYNTER       1
+#define SEND_WHYNTER         1
+
+#define DECODE_AIWA_RC_T501  1
+#define SEND_AIWA_RC_T501    1
+
+#define DECODE_LG            1
+#define SEND_LG              1
+
+#define DECODE_SANYO         1
+#define SEND_SANYO           0 // NOT WRITTEN
+
+#define DECODE_MITSUBISHI    1
+#define SEND_MITSUBISHI      0 // NOT WRITTEN
+
+#define DECODE_DISH          0 // NOT WRITTEN
+#define SEND_DISH            1
+
+#define DECODE_SHARP         0 // NOT WRITTEN
+#define SEND_SHARP           1
+
+#define DECODE_DENON         1
+#define SEND_DENON           1
+
+#define DECODE_PRONTO        0 // This function doe not logically make sense
+#define SEND_PRONTO          1
+
+#define DECODE_LEGO_PF       0 // NOT WRITTEN
+#define SEND_LEGO_PF         1
+
+//------------------------------------------------------------------------------
+// When sending a Pronto code we request to send either the "once" code
+//                                                   or the "repeat" code
+// If the code requested does not exist we can request to fallback on the
+// other code (the one we did not explicitly request)
+//
+// I would suggest that "fallback" will be the standard calling method
+// The last paragraph on this page discusses the rationale of this idea:
+//   http://www.remotecentral.com/features/irdisp2.htm
+//
+#define PRONTO_ONCE        false
+#define PRONTO_REPEAT      true
+#define PRONTO_FALLBACK    true
+#define PRONTO_NOFALLBACK  false
+
+//------------------------------------------------------------------------------
+// An enumerated list of all supported formats
+// You do NOT need to remove entries from this list when disabling protocols!
+//
+typedef
+	enum {
+		UNKNOWN      = -1,
+		UNUSED       =  0,
+		RC5,
+		RC6,
+		NEC,
+		SONY,
+		PANASONIC,
+		JVC,
+		SAMSUNG,
+		WHYNTER,
+		AIWA_RC_T501,
+		LG,
+		SANYO,
+		MITSUBISHI,
+		DISH,
+		SHARP,
+		DENON,
+		PRONTO,
+		LEGO_PF,
+	}
+decode_type_t;
+
+//------------------------------------------------------------------------------
+// Set DEBUG to 1 for lots of lovely debug output
+//
+#define DEBUG  0
+
+//------------------------------------------------------------------------------
+// Debug directives
+//
+#if DEBUG
+#	define DBG_PRINT(...)    Serial.print(__VA_ARGS__)
+#	define DBG_PRINTLN(...)  Serial.println(__VA_ARGS__)
+#else
+#	define DBG_PRINT(...)
+#	define DBG_PRINTLN(...)
+#endif
+
+//------------------------------------------------------------------------------
+// Mark & Space matching functions
+//
+int  MATCH       (int measured, int desired) ;
+int  MATCH_MARK  (int measured_ticks, int desired_us) ;
+int  MATCH_SPACE (int measured_ticks, int desired_us) ;
+
+//------------------------------------------------------------------------------
+// Results returned from the decoder
+//
+class decode_results
+{
+	public:
+		decode_type_t          decode_type;  // UNKNOWN, NEC, SONY, RC5, ...
+		unsigned int           address;      // Used by Panasonic & Sharp [16-bits]
+		unsigned long          value;        // Decoded value [max 32-bits]
+		int                    bits;         // Number of bits in decoded value
+		volatile unsigned int  *rawbuf;      // Raw intervals in 50uS ticks
+		int                    rawlen;       // Number of records in rawbuf
+		int                    overflow;     // true iff IR raw code too long
+};
+
+//------------------------------------------------------------------------------
+// Decoded value for NEC when a repeat code is received
+//
+#define REPEAT 0xFFFFFFFF
+
+//------------------------------------------------------------------------------
+// Main class for receiving IR
+//
+class IRrecv
+{
+	public:
+		IRrecv (int recvpin) ;
+		IRrecv (int recvpin, int blinkpin);
+
+		void  blink13    (int blinkflag) ;
+		int   decode     (decode_results *results) ;
+		void  enableIRIn ( ) ;
+		bool  isIdle     ( ) ;
+		void  resume     ( ) ;
+
+	private:
+		long  decodeHash (decode_results *results) ;
+		int   compare    (unsigned int oldval, unsigned int newval) ;
+
+		//......................................................................
+#		if (DECODE_RC5 || DECODE_RC6)
+			// This helper function is shared by RC5 and RC6
+			int  getRClevel (decode_results *results,  int *offset,  int *used,  int t1) ;
+#		endif
+#		if DECODE_RC5
+			bool  decodeRC5        (decode_results *results) ;
+#		endif
+#		if DECODE_RC6
+			bool  decodeRC6        (decode_results *results) ;
+#		endif
+		//......................................................................
+#		if DECODE_NEC
+			bool  decodeNEC        (decode_results *results) ;
+#		endif
+		//......................................................................
+#		if DECODE_SONY
+			bool  decodeSony       (decode_results *results) ;
+#		endif
+		//......................................................................
+#		if DECODE_PANASONIC
+			bool  decodePanasonic  (decode_results *results) ;
+#		endif
+		//......................................................................
+#		if DECODE_JVC
+			bool  decodeJVC        (decode_results *results) ;
+#		endif
+		//......................................................................
+#		if DECODE_SAMSUNG
+			bool  decodeSAMSUNG    (decode_results *results) ;
+#		endif
+		//......................................................................
+#		if DECODE_WHYNTER
+			bool  decodeWhynter    (decode_results *results) ;
+#		endif
+		//......................................................................
+#		if DECODE_AIWA_RC_T501
+			bool  decodeAiwaRCT501 (decode_results *results) ;
+#		endif
+		//......................................................................
+#		if DECODE_LG
+			bool  decodeLG         (decode_results *results) ;
+#		endif
+		//......................................................................
+#		if DECODE_SANYO
+			bool  decodeSanyo      (decode_results *results) ;
+#		endif
+		//......................................................................
+#		if DECODE_MITSUBISHI
+			bool  decodeMitsubishi (decode_results *results) ;
+#		endif
+		//......................................................................
+#		if DECODE_DISH
+			bool  decodeDish (decode_results *results) ; // NOT WRITTEN
+#		endif
+		//......................................................................
+#		if DECODE_SHARP
+			bool  decodeSharp (decode_results *results) ; // NOT WRITTEN
+#		endif
+		//......................................................................
+#		if DECODE_DENON
+			bool  decodeDenon (decode_results *results) ;
+#		endif
+//......................................................................
+#		if DECODE_LEGO_PF
+			bool  decodeLegoPowerFunctions (decode_results *results) ;
+#		endif
+} ;
+
+//------------------------------------------------------------------------------
+// Main class for sending IR
+//
+class IRsend
+{
+	public:
+		IRsend () { }
+
+		void  custom_delay_usec (unsigned long uSecs);
+		void  enableIROut 		(int khz) ;
+		void  mark        		(unsigned int usec) ;
+		void  space       		(unsigned int usec) ;
+		void  sendRaw     		(const unsigned int buf[],  unsigned int len,  unsigned int hz) ;
+
+		//......................................................................
+#		if SEND_RC5
+			void  sendRC5        (unsigned long data,  int nbits) ;
+#		endif
+#		if SEND_RC6
+			void  sendRC6        (unsigned long data,  int nbits) ;
+#		endif
+		//......................................................................
+#		if SEND_NEC
+			void  sendNEC        (unsigned long data,  int nbits) ;
+#		endif
+		//......................................................................
+#		if SEND_SONY
+			void  sendSony       (unsigned long data,  int nbits) ;
+#		endif
+		//......................................................................
+#		if SEND_PANASONIC
+			void  sendPanasonic  (unsigned int address,  unsigned long data) ;
+#		endif
+		//......................................................................
+#		if SEND_JVC
+			// JVC does NOT repeat by sending a separate code (like NEC does).
+			// The JVC protocol repeats by skipping the header.
+			// To send a JVC repeat signal, send the original code value
+			//   and set 'repeat' to true
+			void  sendJVC        (unsigned long data,  int nbits,  bool repeat) ;
+#		endif
+		//......................................................................
+#		if SEND_SAMSUNG
+			void  sendSAMSUNG    (unsigned long data,  int nbits) ;
+#		endif
+		//......................................................................
+#		if SEND_WHYNTER
+			void  sendWhynter    (unsigned long data,  int nbits) ;
+#		endif
+		//......................................................................
+#		if SEND_AIWA_RC_T501
+			void  sendAiwaRCT501 (int code) ;
+#		endif
+		//......................................................................
+#		if SEND_LG
+			void  sendLG         (unsigned long data,  int nbits) ;
+#		endif
+		//......................................................................
+#		if SEND_SANYO
+			void  sendSanyo      ( ) ; // NOT WRITTEN
+#		endif
+		//......................................................................
+#		if SEND_MISUBISHI
+			void  sendMitsubishi ( ) ; // NOT WRITTEN
+#		endif
+		//......................................................................
+#		if SEND_DISH
+			void  sendDISH       (unsigned long data,  int nbits) ;
+#		endif
+		//......................................................................
+#		if SEND_SHARP
+			void  sendSharpRaw   (unsigned long data,  int nbits) ;
+			void  sendSharp      (unsigned int address,  unsigned int command) ;
+#		endif
+		//......................................................................
+#		if SEND_DENON
+			void  sendDenon      (unsigned long data,  int nbits) ;
+#		endif
+		//......................................................................
+#		if SEND_PRONTO
+			void  sendPronto     (char* code,  bool repeat,  bool fallback) ;
+#		endif
+//......................................................................
+#		if SEND_LEGO_PF
+			void  sendLegoPowerFunctions (uint16_t data, bool repeat = true) ;
+#		endif
+} ;
+
+#endif

lib/Arduino-IRremote/IRremoteInt.h

@@ -0,0 +1,113 @@
+//******************************************************************************
+// IRremote
+// Version 2.0.1 June, 2015
+// Copyright 2009 Ken Shirriff
+// For details, see http://arcfn.com/2009/08/multi-protocol-infrared-remote-library.html
+//
+// Modified by Paul Stoffregen <paul@pjrc.com> to support other boards and timers
+//
+// Interrupt code based on NECIRrcv by Joe Knapp
+// http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1210243556
+// Also influenced by http://zovirl.com/2008/11/12/building-a-universal-remote-with-an-arduino/
+//
+// JVC and Panasonic protocol added by Kristian Lauszus (Thanks to zenwheel and other people at the original blog post)
+// Whynter A/C ARC-110WD added by Francesco Meschia
+//******************************************************************************
+
+#ifndef IRremoteint_h
+#define IRremoteint_h
+
+//------------------------------------------------------------------------------
+// Include the right Arduino header
+//
+#if defined(ARDUINO) && (ARDUINO >= 100)
+#	include <Arduino.h>
+#else
+#	if !defined(IRPRONTO)
+#		include <WProgram.h>
+#	endif
+#endif
+
+//------------------------------------------------------------------------------
+// This handles definition and access to global variables
+//
+#ifdef IR_GLOBAL
+#	define EXTERN
+#else
+#	define EXTERN extern
+#endif
+
+//------------------------------------------------------------------------------
+// Information for the Interrupt Service Routine
+//
+#define RAWBUF  101  // Maximum length of raw duration buffer
+
+typedef
+	struct {
+		// The fields are ordered to reduce memory over caused by struct-padding
+		uint8_t       rcvstate;        // State Machine state
+		uint8_t       recvpin;         // Pin connected to IR data from detector
+		uint8_t       blinkpin;
+		uint8_t       blinkflag;       // true -> enable blinking of pin on IR processing
+		uint8_t       rawlen;          // counter of entries in rawbuf
+		unsigned int  timer;           // State timer, counts 50uS ticks.
+		unsigned int  rawbuf[RAWBUF];  // raw data
+		uint8_t       overflow;        // Raw buffer overflow occurred
+	}
+irparams_t;
+
+// ISR State-Machine : Receiver States
+#define STATE_IDLE      2
+#define STATE_MARK      3
+#define STATE_SPACE     4
+#define STATE_STOP      5
+#define STATE_OVERFLOW  6
+
+// Allow all parts of the code access to the ISR data
+// NB. The data can be changed by the ISR at any time, even mid-function
+// Therefore we declare it as "volatile" to stop the compiler/CPU caching it
+EXTERN  volatile irparams_t  irparams;
+
+//------------------------------------------------------------------------------
+// Defines for setting and clearing register bits
+//
+#ifndef cbi
+#	define cbi(sfr, bit)  (_SFR_BYTE(sfr) &= ~_BV(bit))
+#endif
+
+#ifndef sbi
+#	define sbi(sfr, bit)  (_SFR_BYTE(sfr) |= _BV(bit))
+#endif
+
+//------------------------------------------------------------------------------
+// Pulse parms are ((X*50)-100) for the Mark and ((X*50)+100) for the Space.
+// First MARK is the one after the long gap
+// Pulse parameters in uSec
+//
+
+// Due to sensor lag, when received, Marks  tend to be 100us too long and
+//                                   Spaces tend to be 100us too short
+#define MARK_EXCESS    100
+
+// Upper and Lower percentage tolerances in measurements
+#define TOLERANCE       25
+#define LTOL            (1.0 - (TOLERANCE/100.))
+#define UTOL            (1.0 + (TOLERANCE/100.))
+
+// Minimum gap between IR transmissions
+#define _GAP            5000
+#define GAP_TICKS       (_GAP/USECPERTICK)
+
+#define TICKS_LOW(us)   ((int)(((us)*LTOL/USECPERTICK)))
+#define TICKS_HIGH(us)  ((int)(((us)*UTOL/USECPERTICK + 1)))
+
+//------------------------------------------------------------------------------
+// IR detector output is active low
+//
+#define MARK   0
+#define SPACE  1
+
+// All board specific stuff has been moved to its own file, included here.
+#include "boarddefs.h"
+
+#endif

lib/Arduino-IRremote/ISSUE_TEMPLATE.md

@@ -0,0 +1,25 @@
+**Board:** ARDUINO UNO
+**Library Version:** 2.1.0
+**Protocol:** Sony (if any)
+
+**Code Block:**
+```c
+
+#include <IRremote.h> 
+
+.....
+
+```
+
+Use [a gist](gist.github.com) if the code exceeds 30 lines
+
+**checklist:**
+- [] I have **read** the README.md file thoroughly
+- [] I have searched existing issues to see if there is anything I have missed.
+- [] The latest [release](https://github.com/z3t0/Arduino-IRremote/releases/latest) is used
+- [] Any code referenced is provided and if over 30 lines a gist is linked INSTEAD of it being pasted in here
+- [] The title of the issue is helpful and relevant 
+
+** We will start to close issues that do not follow these guidelines as it doesn't help the contributors who spend time trying to solve issues if the community ignores guidelines!**
+
+The above is a short template allowing you to make detailed issues!

lib/Arduino-IRremote/LICENSE.txt

@@ -0,0 +1,458 @@
+
+		  GNU LESSER GENERAL PUBLIC LICENSE
+		       Version 2.1, February 1999
+
+ Copyright (C) 1991, 1999 Free Software Foundation, Inc.
+ 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+[This is the first released version of the Lesser GPL.  It also counts
+ as the successor of the GNU Library Public License, version 2, hence
+ the version number 2.1.]
+
+			    Preamble
+
+  The licenses for most software are designed to take away your
+freedom to share and change it.  By contrast, the GNU General Public
+Licenses are intended to guarantee your freedom to share and change
+free software--to make sure the software is free for all its users.
+
+  This license, the Lesser General Public License, applies to some
+specially designated software packages--typically libraries--of the
+Free Software Foundation and other authors who decide to use it.  You
+can use it too, but we suggest you first think carefully about whether
+this license or the ordinary General Public License is the better
+strategy to use in any particular case, based on the explanations below.
+
+  When we speak of free software, we are referring to freedom of use,
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+
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+
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+

lib/Arduino-IRremote/README.md

@@ -0,0 +1,89 @@
+# IRremote Arduino Library
+
+[![Build Status](https://travis-ci.org/z3t0/Arduino-IRremote.svg?branch=master)](https://travis-ci.org/z3t0/Arduino-IRremote)
+
+[![Join the chat at https://gitter.im/z3t0/Arduino-IRremote](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/z3t0/Arduino-IRremote?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
+
+This library enables you to send and receive using infra-red signals on an Arduino.
+
+Tutorials and more information will be made available on [the official homepage](http://z3t0.github.io/Arduino-IRremote/).
+
+## Version - 2.2.3
+
+## Installation
+1. Navigate to the [Releases](https://github.com/z3t0/Arduino-IRremote/releases) page.
+2. Download the latest release.
+3. Extract the zip file
+4. Move the "IRremote" folder that has been extracted to your libraries directory.
+5. Make sure to delete Arduino_Root/libraries/RobotIRremote. Where Arduino_Root refers to the install directory of Arduino. The library RobotIRremote has similar definitions to IRremote and causes errors.
+
+
+## FAQ
+- IR does not work right when I use Neopixels (aka WS2811/WS2812/WS2812B)  
+Whether you use the Adafruit Neopixel lib, or FastLED, interrupts get disabled on many lower end CPUs like the basic arduinos. In turn, this stops the IR interrupt handler from running when it needs to. There are some solutions to this on some processors, [see this page from Marc MERLIN](http://marc.merlins.org/perso/arduino/post_2017-04-03_Arduino-328P-Uno-Teensy3_1-ESP8266-ESP32-IR-and-Neopixels.html)
+
+
+## Supported Boards
+- Arduino Uno / Mega / Leonardo / Duemilanove / Diecimila / LilyPad / Mini / Fio / Nano etc.
+- Teensy 1.0 / 1.0++ / 2.0 / 2++ / 3.0 / 3.1 / Teensy-LC; Credits: @PaulStoffregen (Teensy Team)
+- Sanguino
+- ATmega8, 48, 88, 168, 328
+- ATmega8535, 16, 32, 164, 324, 644, 1284,
+- ATmega64, 128
+- ATtiny 84 / 85
+- ESP32 (receive only)
+- ESP8266 is supported in a fork based on an old codebase that isn't as recent, but it works reasonably well given that perfectly timed sub millisecond interrupts are different on that chip. See https://github.com/markszabo/IRremoteESP8266
+
+We are open to suggestions for adding support to new boards, however we highly recommend you contact your supplier first and ask them to provide support from their side.
+
+### Hardware specifications
+
+| Board/CPU                                                                | Send Pin            | Timers            |
+|--------------------------------------------------------------------------|---------------------|-------------------|
+| [ATtiny84](https://github.com/SpenceKonde/ATTinyCore)                    | **6**               | **1**             |
+| [ATtiny85](https://github.com/SpenceKonde/ATTinyCore)                    | **1**               | **TINY0**         |
+| [ATmega8](https://github.com/MCUdude/MiniCore)                           | **9**               | **1**             |
+| Atmega32u4                                                               | 5, 9, **13**        | 1, 3, **4**       |
+| [ATmega48, ATmega88, ATmega168, ATmega328](https://github.com/MCUdude/MiniCore) | **3**, 9     | 1, **2**          |
+| [ATmega1284](https://github.com/MCUdude/MightyCore)                      | 13, 14, 6           | 1, **2**, 3       |
+| [ATmega164, ATmega324, ATmega644](https://github.com/MCUdude/MightyCore) | 13, **14**          | 1, **2**          |
+| [ATmega8535 ATmega16, ATmega32](https://github.com/MCUdude/MightyCore)   | **13**              | **1**             |
+| [ATmega64, ATmega128](https://github.com/MCUdude/MegaCore)               | **13**              | **1**             |
+| ATmega1280, ATmega2560                                                   | 5, 6, **9**, 11, 46 | 1, **2**, 3, 4, 5 |
+| [ESP32](http://esp32.net/)                                               | N/A (not supported) | **1**             |
+| [Teensy 1.0](https://www.pjrc.com/teensy/)                               | **17**              | **1**             |
+| [Teensy 2.0](https://www.pjrc.com/teensy/)                               | 9, **10**, 14       | 1, 3, **4_HS**    |
+| [Teensy++ 1.0 / 2.0](https://www.pjrc.com/teensy/)                       | **1**, 16, 25       | 1, **2**, 3       |
+| [Teensy 3.0 / 3.1](https://www.pjrc.com/teensy/)                         | **5**               | **CMT**           |
+| [Teensy-LC](https://www.pjrc.com/teensy/)                                | **16**              | **TPM1**          |
+
+
+### Experimental patches
+The following are strictly community supported patches that have yet to make it into mainstream. If you have issues feel free to ask here. If it works well then let us know!
+
+[Arduino 101](https://github.com/z3t0/Arduino-IRremote/pull/481#issuecomment-311243146)
+
+The table above lists the currently supported timers and corresponding send pins, many of these can have additional pins opened up and we are open to requests if a need arises for other pins.
+
+## Usage
+- TODO (Check examples for now)
+
+## Contributing
+If you want to contribute to this project:
+- Report bugs and errors
+- Ask for enhancements
+- Create issues and pull requests
+- Tell other people about this library
+- Contribute new protocols
+
+Check [here](Contributing.md) for some guidelines.
+
+## Contact
+Email: zetoslab@gmail.com
+Please only email me if it is more appropriate than creating an Issue / PR. I **will** not respond to requests for adding support for particular boards, unless of course you are the creator of the board and would like to cooperate on the project. I will also **ignore** any emails asking me to tell you how to implement your ideas. However, if you have a private inquiry that you would only apply to you and you would prefer it to be via email, by all means.
+
+## Contributors
+Check [here](Contributors.md)
+
+## Copyright
+Copyright 2009-2012 Ken Shirriff

lib/Arduino-IRremote/boarddefs.h

@@ -0,0 +1,577 @@
+//******************************************************************************
+// IRremote
+// Version 2.0.1 June, 2015
+// Copyright 2009 Ken Shirriff
+// For details, see http://arcfn.com/2009/08/multi-protocol-infrared-remote-library.html
+
+// This file contains all board specific information. It was previously contained within
+// IRremoteInt.h
+
+// Modified by Paul Stoffregen <paul@pjrc.com> to support other boards and timers
+//
+// Interrupt code based on NECIRrcv by Joe Knapp
+// http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1210243556
+// Also influenced by http://zovirl.com/2008/11/12/building-a-universal-remote-with-an-arduino/
+//
+// JVC and Panasonic protocol added by Kristian Lauszus (Thanks to zenwheel and other people at the original blog post)
+// Whynter A/C ARC-110WD added by Francesco Meschia
+//******************************************************************************
+
+#ifndef boarddefs_h
+#define boarddefs_h
+
+//------------------------------------------------------------------------------
+// Defines for blinking the LED
+//
+
+#if defined(CORE_LED0_PIN)
+#	define BLINKLED        CORE_LED0_PIN
+#	define BLINKLED_ON()   (digitalWrite(CORE_LED0_PIN, HIGH))
+#	define BLINKLED_OFF()  (digitalWrite(CORE_LED0_PIN, LOW))
+
+#elif defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
+#	define BLINKLED        13
+#	define BLINKLED_ON()   (PORTB |= B10000000)
+#	define BLINKLED_OFF()  (PORTB &= B01111111)
+
+#elif defined(__AVR_ATmega644P__) || defined(__AVR_ATmega644__)
+#	define BLINKLED        0
+#	define BLINKLED_ON()   (PORTD |= B00000001)
+#	define BLINKLED_OFF()  (PORTD &= B11111110)
+
+// No system LED on ESP32, disable blinking
+#elif defined(ESP32)
+#	define BLINKLED        255
+#	define BLINKLED_ON()   1
+#	define BLINKLED_OFF()  1
+#else
+#	define BLINKLED        13
+#	define BLINKLED_ON()  (PORTB |= B00100000)
+#	define BLINKLED_OFF()  (PORTB &= B11011111)
+#endif
+
+//------------------------------------------------------------------------------
+// CPU Frequency
+//
+#ifdef F_CPU
+#	define SYSCLOCK  F_CPU     // main Arduino clock
+#else
+#	define SYSCLOCK  16000000  // main Arduino clock
+#endif
+
+// microseconds per clock interrupt tick
+#define USECPERTICK    50
+
+//------------------------------------------------------------------------------
+// Define which timer to use
+//
+// Uncomment the timer you wish to use on your board.
+// If you are using another library which uses timer2, you have options to
+//   switch IRremote to use a different timer.
+//
+
+// Arduino Mega
+#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
+	//#define IR_USE_TIMER1   // tx = pin 11
+	#define IR_USE_TIMER2     // tx = pin 9
+	//#define IR_USE_TIMER3   // tx = pin 5
+	//#define IR_USE_TIMER4   // tx = pin 6
+	//#define IR_USE_TIMER5   // tx = pin 46
+
+// Teensy 1.0
+#elif defined(__AVR_AT90USB162__)
+	#define IR_USE_TIMER1     // tx = pin 17
+
+// Teensy 2.0
+#elif defined(__AVR_ATmega32U4__)
+	//#define IR_USE_TIMER1   // tx = pin 14
+	//#define IR_USE_TIMER3   // tx = pin 9
+	#define IR_USE_TIMER4_HS  // tx = pin 10
+
+// Teensy 3.0 / Teensy 3.1
+#elif defined(__MK20DX128__) || defined(__MK20DX256__) || defined(__MK64FX512__) || defined(__MK66FX1M0__)
+	#define IR_USE_TIMER_CMT  // tx = pin 5
+
+// Teensy-LC
+#elif defined(__MKL26Z64__)
+  #define IR_USE_TIMER_TPM1 // tx = pin 16
+
+// Teensy++ 1.0 & 2.0
+#elif defined(__AVR_AT90USB646__) || defined(__AVR_AT90USB1286__)
+	//#define IR_USE_TIMER1   // tx = pin 25
+	#define IR_USE_TIMER2     // tx = pin 1
+	//#define IR_USE_TIMER3   // tx = pin 16
+
+// MightyCore - ATmega1284
+#elif defined(__AVR_ATmega1284__) || defined(__AVR_ATmega1284P__)
+	//#define IR_USE_TIMER1   // tx = pin 13
+	#define IR_USE_TIMER2     // tx = pin 14
+	//#define IR_USE_TIMER3   // tx = pin 6
+
+// MightyCore - ATmega164, ATmega324, ATmega644
+#elif defined(__AVR_ATmega644__) || defined(__AVR_ATmega644P__) \
+|| defined(__AVR_ATmega324P__) || defined(__AVR_ATmega324A__) \
+|| defined(__AVR_ATmega324PA__) || defined(__AVR_ATmega164A__) \
+|| defined(__AVR_ATmega164P__)
+	//#define IR_USE_TIMER1   // tx = pin 13
+	#define IR_USE_TIMER2     // tx = pin 14
+	
+//MegaCore - ATmega64, ATmega128
+#elif defined(__AVR_ATmega64__) || defined(__AVR_ATmega128__)
+ 	#define IR_USE_TIMER1     // tx = pin 13
+
+// MightyCore - ATmega8535, ATmega16, ATmega32
+#elif defined(__AVR_ATmega8535__) || defined(__AVR_ATmega16__) || defined(__AVR_ATmega32__)
+ 	#define IR_USE_TIMER1     // tx = pin 13
+
+// Atmega8
+#elif defined(__AVR_ATmega8__)
+	#define IR_USE_TIMER1     // tx = pin 9
+
+// ATtiny84
+#elif defined(__AVR_ATtiny84__)
+	#define IR_USE_TIMER1     // tx = pin 6
+
+//ATtiny85
+#elif defined(__AVR_ATtiny85__)
+	#define IR_USE_TIMER_TINY0   // tx = pin 1
+
+#elif defined(ESP32)
+	#define IR_TIMER_USE_ESP32
+#else
+// Arduino Duemilanove, Diecimila, LilyPad, Mini, Fio, Nano, etc
+// ATmega48, ATmega88, ATmega168, ATmega328
+	//#define IR_USE_TIMER1   // tx = pin 9
+	#define IR_USE_TIMER2     // tx = pin 3
+
+#endif
+
+//------------------------------------------------------------------------------
+// Defines for Timer
+
+//---------------------------------------------------------
+// Timer2 (8 bits)
+//
+#if defined(IR_USE_TIMER2)
+
+#define TIMER_RESET
+#define TIMER_ENABLE_PWM    (TCCR2A |= _BV(COM2B1))
+#define TIMER_DISABLE_PWM   (TCCR2A &= ~(_BV(COM2B1)))
+#define TIMER_ENABLE_INTR   (TIMSK2 = _BV(OCIE2A))
+#define TIMER_DISABLE_INTR  (TIMSK2 = 0)
+#define TIMER_INTR_NAME     TIMER2_COMPA_vect
+
+#define TIMER_CONFIG_KHZ(val) ({ \
+	const uint8_t pwmval = SYSCLOCK / 2000 / (val); \
+	TCCR2A               = _BV(WGM20); \
+	TCCR2B               = _BV(WGM22) | _BV(CS20); \
+	OCR2A                = pwmval; \
+	OCR2B                = pwmval / 3; \
+})
+
+#define TIMER_COUNT_TOP  (SYSCLOCK * USECPERTICK / 1000000)
+
+//-----------------
+#if (TIMER_COUNT_TOP < 256)
+#	define TIMER_CONFIG_NORMAL() ({ \
+		TCCR2A = _BV(WGM21); \
+		TCCR2B = _BV(CS20); \
+		OCR2A  = TIMER_COUNT_TOP; \
+		TCNT2  = 0; \
+	})
+#else
+#	define TIMER_CONFIG_NORMAL() ({ \
+		TCCR2A = _BV(WGM21); \
+		TCCR2B = _BV(CS21); \
+		OCR2A  = TIMER_COUNT_TOP / 8; \
+		TCNT2  = 0; \
+	})
+#endif
+
+//-----------------
+#if defined(CORE_OC2B_PIN)
+#	define TIMER_PWM_PIN  CORE_OC2B_PIN  // Teensy
+#elif defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
+#	define TIMER_PWM_PIN  9              // Arduino Mega
+#elif defined(__AVR_ATmega1284__) || defined(__AVR_ATmega1284P__) \
+|| defined(__AVR_ATmega644__) || defined(__AVR_ATmega644P__) \
+|| defined(__AVR_ATmega324P__) || defined(__AVR_ATmega324A__) \
+|| defined(__AVR_ATmega324PA__) || defined(__AVR_ATmega164A__) \
+|| defined(__AVR_ATmega164P__)
+#	define TIMER_PWM_PIN  14             // MightyCore
+#else
+#	define TIMER_PWM_PIN  3              // Arduino Duemilanove, Diecimila, LilyPad, etc
+#endif					     // ATmega48, ATmega88, ATmega168, ATmega328
+
+//---------------------------------------------------------
+// Timer1 (16 bits)
+//
+#elif defined(IR_USE_TIMER1)
+
+#define TIMER_RESET
+#define TIMER_ENABLE_PWM   (TCCR1A |= _BV(COM1A1))
+#define TIMER_DISABLE_PWM  (TCCR1A &= ~(_BV(COM1A1)))
+
+//-----------------
+#if defined(__AVR_ATmega8__) || defined(__AVR_ATmega8535__) \
+|| defined(__AVR_ATmega16__) || defined(__AVR_ATmega32__) \
+|| defined(__AVR_ATmega64__) || defined(__AVR_ATmega128__)
+#	define TIMER_ENABLE_INTR   (TIMSK |= _BV(OCIE1A))
+#	define TIMER_DISABLE_INTR  (TIMSK &= ~_BV(OCIE1A))
+#else
+#	define TIMER_ENABLE_INTR   (TIMSK1 = _BV(OCIE1A))
+#	define TIMER_DISABLE_INTR  (TIMSK1 = 0)
+#endif
+
+//-----------------
+#define TIMER_INTR_NAME       TIMER1_COMPA_vect
+
+#define TIMER_CONFIG_KHZ(val) ({ \
+	const uint16_t pwmval = SYSCLOCK / 2000 / (val); \
+	TCCR1A                = _BV(WGM11); \
+	TCCR1B                = _BV(WGM13) | _BV(CS10); \
+	ICR1                  = pwmval; \
+	OCR1A                 = pwmval / 3; \
+})
+
+#define TIMER_CONFIG_NORMAL() ({ \
+	TCCR1A = 0; \
+	TCCR1B = _BV(WGM12) | _BV(CS10); \
+	OCR1A  = SYSCLOCK * USECPERTICK / 1000000; \
+	TCNT1  = 0; \
+})
+
+//-----------------
+#if defined(CORE_OC1A_PIN)
+#	define TIMER_PWM_PIN  CORE_OC1A_PIN  // Teensy
+#elif defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
+#	define TIMER_PWM_PIN  11             // Arduino Mega
+#elif defined(__AVR_ATmega64__) || defined(__AVR_ATmega128__)
+#	define TIMER_PWM_PIN  13	     // MegaCore
+#elif defined(__AVR_ATmega1284__) || defined(__AVR_ATmega1284P__) \
+|| defined(__AVR_ATmega644__) || defined(__AVR_ATmega644P__) \
+|| defined(__AVR_ATmega324P__) || defined(__AVR_ATmega324A__) \
+|| defined(__AVR_ATmega324PA__) || defined(__AVR_ATmega164A__) \
+|| defined(__AVR_ATmega164P__) || defined(__AVR_ATmega32__) \
+|| defined(__AVR_ATmega16__) || defined(__AVR_ATmega8535__)
+#	define TIMER_PWM_PIN  13             // MightyCore
+#elif defined(__AVR_ATtiny84__)
+# 	define TIMER_PWM_PIN  6
+#else
+#	define TIMER_PWM_PIN  9              // Arduino Duemilanove, Diecimila, LilyPad, etc
+#endif					     // ATmega48, ATmega88, ATmega168, ATmega328
+
+//---------------------------------------------------------
+// Timer3 (16 bits)
+//
+#elif defined(IR_USE_TIMER3)
+
+#define TIMER_RESET
+#define TIMER_ENABLE_PWM     (TCCR3A |= _BV(COM3A1))
+#define TIMER_DISABLE_PWM    (TCCR3A &= ~(_BV(COM3A1)))
+#define TIMER_ENABLE_INTR    (TIMSK3 = _BV(OCIE3A))
+#define TIMER_DISABLE_INTR   (TIMSK3 = 0)
+#define TIMER_INTR_NAME      TIMER3_COMPA_vect
+
+#define TIMER_CONFIG_KHZ(val) ({ \
+  const uint16_t pwmval = SYSCLOCK / 2000 / (val); \
+  TCCR3A = _BV(WGM31); \
+  TCCR3B = _BV(WGM33) | _BV(CS30); \
+  ICR3 = pwmval; \
+  OCR3A = pwmval / 3; \
+})
+
+#define TIMER_CONFIG_NORMAL() ({ \
+  TCCR3A = 0; \
+  TCCR3B = _BV(WGM32) | _BV(CS30); \
+  OCR3A = SYSCLOCK * USECPERTICK / 1000000; \
+  TCNT3 = 0; \
+})
+
+//-----------------
+#if defined(CORE_OC3A_PIN)
+#	define TIMER_PWM_PIN  CORE_OC3A_PIN  // Teensy
+#elif defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
+#	define TIMER_PWM_PIN  5              // Arduino Mega
+#elif defined(__AVR_ATmega1284__) || defined(__AVR_ATmega1284P__)
+#	define TIMER_PWM_PIN  6              // MightyCore
+#else
+#	error "Please add OC3A pin number here\n"
+#endif
+
+//---------------------------------------------------------
+// Timer4 (10 bits, high speed option)
+//
+#elif defined(IR_USE_TIMER4_HS)
+
+#define TIMER_RESET
+#define TIMER_ENABLE_PWM    (TCCR4A |= _BV(COM4A1))
+#define TIMER_DISABLE_PWM   (TCCR4A &= ~(_BV(COM4A1)))
+#define TIMER_ENABLE_INTR   (TIMSK4 = _BV(TOIE4))
+#define TIMER_DISABLE_INTR  (TIMSK4 = 0)
+#define TIMER_INTR_NAME     TIMER4_OVF_vect
+
+#define TIMER_CONFIG_KHZ(val) ({ \
+	const uint16_t pwmval = SYSCLOCK / 2000 / (val); \
+	TCCR4A                = (1<<PWM4A); \
+	TCCR4B                = _BV(CS40); \
+	TCCR4C                = 0; \
+	TCCR4D                = (1<<WGM40); \
+	TCCR4E                = 0; \
+	TC4H                  = pwmval >> 8; \
+	OCR4C                 = pwmval; \
+	TC4H                  = (pwmval / 3) >> 8; \
+	OCR4A                 = (pwmval / 3) & 255; \
+})
+
+#define TIMER_CONFIG_NORMAL() ({ \
+	TCCR4A = 0; \
+	TCCR4B = _BV(CS40); \
+	TCCR4C = 0; \
+	TCCR4D = 0; \
+	TCCR4E = 0; \
+	TC4H   = (SYSCLOCK * USECPERTICK / 1000000) >> 8; \
+	OCR4C  = (SYSCLOCK * USECPERTICK / 1000000) & 255; \
+	TC4H   = 0; \
+	TCNT4  = 0; \
+})
+
+//-----------------
+#if defined(CORE_OC4A_PIN)
+#	define TIMER_PWM_PIN  CORE_OC4A_PIN  // Teensy
+#elif defined(__AVR_ATmega32U4__)
+#	define TIMER_PWM_PIN  13             // Leonardo
+#else
+#	error "Please add OC4A pin number here\n"
+#endif
+
+//---------------------------------------------------------
+// Timer4 (16 bits)
+//
+#elif defined(IR_USE_TIMER4)
+
+#define TIMER_RESET
+#define TIMER_ENABLE_PWM    (TCCR4A |= _BV(COM4A1))
+#define TIMER_DISABLE_PWM   (TCCR4A &= ~(_BV(COM4A1)))
+#define TIMER_ENABLE_INTR   (TIMSK4 = _BV(OCIE4A))
+#define TIMER_DISABLE_INTR  (TIMSK4 = 0)
+#define TIMER_INTR_NAME     TIMER4_COMPA_vect
+
+#define TIMER_CONFIG_KHZ(val) ({ \
+  const uint16_t pwmval = SYSCLOCK / 2000 / (val); \
+  TCCR4A = _BV(WGM41); \
+  TCCR4B = _BV(WGM43) | _BV(CS40); \
+  ICR4 = pwmval; \
+  OCR4A = pwmval / 3; \
+})
+
+#define TIMER_CONFIG_NORMAL() ({ \
+  TCCR4A = 0; \
+  TCCR4B = _BV(WGM42) | _BV(CS40); \
+  OCR4A = SYSCLOCK * USECPERTICK / 1000000; \
+  TCNT4 = 0; \
+})
+
+//-----------------
+#if defined(CORE_OC4A_PIN)
+#	define TIMER_PWM_PIN  CORE_OC4A_PIN
+#elif defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
+#	define TIMER_PWM_PIN  6  // Arduino Mega
+#else
+#	error "Please add OC4A pin number here\n"
+#endif
+
+//---------------------------------------------------------
+// Timer5 (16 bits)
+//
+#elif defined(IR_USE_TIMER5)
+
+#define TIMER_RESET
+#define TIMER_ENABLE_PWM    (TCCR5A |= _BV(COM5A1))
+#define TIMER_DISABLE_PWM   (TCCR5A &= ~(_BV(COM5A1)))
+#define TIMER_ENABLE_INTR   (TIMSK5 = _BV(OCIE5A))
+#define TIMER_DISABLE_INTR  (TIMSK5 = 0)
+#define TIMER_INTR_NAME     TIMER5_COMPA_vect
+
+#define TIMER_CONFIG_KHZ(val) ({ \
+  const uint16_t pwmval = SYSCLOCK / 2000 / (val); \
+  TCCR5A = _BV(WGM51); \
+  TCCR5B = _BV(WGM53) | _BV(CS50); \
+  ICR5 = pwmval; \
+  OCR5A = pwmval / 3; \
+})
+
+#define TIMER_CONFIG_NORMAL() ({ \
+  TCCR5A = 0; \
+  TCCR5B = _BV(WGM52) | _BV(CS50); \
+  OCR5A = SYSCLOCK * USECPERTICK / 1000000; \
+  TCNT5 = 0; \
+})
+
+//-----------------
+#if defined(CORE_OC5A_PIN)
+#	define TIMER_PWM_PIN  CORE_OC5A_PIN
+#elif defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
+#	define TIMER_PWM_PIN  46  // Arduino Mega
+#else
+#	error "Please add OC5A pin number here\n"
+#endif
+
+//---------------------------------------------------------
+// Special carrier modulator timer
+//
+#elif defined(IR_USE_TIMER_CMT)
+
+#define TIMER_RESET ({     \
+	uint8_t tmp __attribute__((unused)) = CMT_MSC; \
+	CMT_CMD2 = 30;         \
+})
+
+#define TIMER_ENABLE_PWM  do {                                         \
+	CORE_PIN5_CONFIG = PORT_PCR_MUX(2) | PORT_PCR_DSE | PORT_PCR_SRE;  \
+} while(0)
+
+#define TIMER_DISABLE_PWM  do {                                        \
+	CORE_PIN5_CONFIG = PORT_PCR_MUX(1) | PORT_PCR_DSE | PORT_PCR_SRE;  \
+} while(0)
+
+#define TIMER_ENABLE_INTR   NVIC_ENABLE_IRQ(IRQ_CMT)
+#define TIMER_DISABLE_INTR  NVIC_DISABLE_IRQ(IRQ_CMT)
+#define TIMER_INTR_NAME     cmt_isr
+
+//-----------------
+#ifdef ISR
+#	undef ISR
+#endif
+#define  ISR(f)  void f(void)
+
+//-----------------
+#define CMT_PPS_DIV  ((F_BUS + 7999999) / 8000000)
+#if F_BUS < 8000000
+#error IRremote requires at least 8 MHz on Teensy 3.x
+#endif
+
+//-----------------
+#define TIMER_CONFIG_KHZ(val) ({ 	 \
+	SIM_SCGC4 |= SIM_SCGC4_CMT;      \
+	SIM_SOPT2 |= SIM_SOPT2_PTD7PAD;  \
+	CMT_PPS    = CMT_PPS_DIV - 1;    \
+	CMT_CGH1   = ((F_BUS / CMT_PPS_DIV / 3000) + ((val)/2)) / (val); \
+	CMT_CGL1   = ((F_BUS / CMT_PPS_DIV / 1500) + ((val)/2)) / (val); \
+	CMT_CMD1   = 0;                  \
+	CMT_CMD2   = 30;                 \
+	CMT_CMD3   = 0;                  \
+	CMT_CMD4   = 0;                  \
+	CMT_OC     = 0x60;               \
+	CMT_MSC    = 0x01;               \
+})
+
+#define TIMER_CONFIG_NORMAL() ({  \
+	SIM_SCGC4 |= SIM_SCGC4_CMT;   \
+	CMT_PPS    = CMT_PPS_DIV - 1; \
+	CMT_CGH1   = 1;               \
+	CMT_CGL1   = 1;               \
+	CMT_CMD1   = 0;               \
+	CMT_CMD2   = 30;              \
+	CMT_CMD3   = 0;               \
+	CMT_CMD4   = (F_BUS / 160000 + CMT_PPS_DIV / 2) / CMT_PPS_DIV - 31; \
+	CMT_OC     = 0;               \
+	CMT_MSC    = 0x03;            \
+})
+
+#define TIMER_PWM_PIN  5
+
+// defines for TPM1 timer on Teensy-LC
+#elif defined(IR_USE_TIMER_TPM1)
+#define TIMER_RESET          FTM1_SC |= FTM_SC_TOF;
+#define TIMER_ENABLE_PWM     CORE_PIN16_CONFIG = PORT_PCR_MUX(3)|PORT_PCR_DSE|PORT_PCR_SRE
+#define TIMER_DISABLE_PWM    CORE_PIN16_CONFIG = PORT_PCR_MUX(1)|PORT_PCR_SRE
+#define TIMER_ENABLE_INTR    NVIC_ENABLE_IRQ(IRQ_FTM1)
+#define TIMER_DISABLE_INTR   NVIC_DISABLE_IRQ(IRQ_FTM1)
+#define TIMER_INTR_NAME      ftm1_isr
+#ifdef ISR
+#undef ISR
+#endif
+#define ISR(f) void f(void)
+#define TIMER_CONFIG_KHZ(val) ({                     \
+	SIM_SCGC6 |= SIM_SCGC6_TPM1;                 \
+	FTM1_SC = 0;                                 \
+	FTM1_CNT = 0;                                \
+	FTM1_MOD = (F_PLL/2000) / val - 1;           \
+	FTM1_C0V = (F_PLL/6000) / val - 1;           \
+	FTM1_SC = FTM_SC_CLKS(1) | FTM_SC_PS(0);     \
+})
+#define TIMER_CONFIG_NORMAL() ({                     \
+	SIM_SCGC6 |= SIM_SCGC6_TPM1;                 \
+	FTM1_SC = 0;                                 \
+	FTM1_CNT = 0;                                \
+	FTM1_MOD = (F_PLL/40000) - 1;                \
+	FTM1_C0V = 0;                                \
+	FTM1_SC = FTM_SC_CLKS(1) | FTM_SC_PS(0) | FTM_SC_TOF | FTM_SC_TOIE; \
+})
+#define TIMER_PWM_PIN        16
+
+// defines for timer_tiny0 (8 bits)
+#elif defined(IR_USE_TIMER_TINY0)
+#define TIMER_RESET
+#define TIMER_ENABLE_PWM     (TCCR0A |= _BV(COM0B1))
+#define TIMER_DISABLE_PWM    (TCCR0A &= ~(_BV(COM0B1)))
+#define TIMER_ENABLE_INTR    (TIMSK |= _BV(OCIE0A))
+#define TIMER_DISABLE_INTR   (TIMSK &= ~(_BV(OCIE0A)))
+#define TIMER_INTR_NAME      TIMER0_COMPA_vect
+#define TIMER_CONFIG_KHZ(val) ({ \
+  const uint8_t pwmval = SYSCLOCK / 2000 / (val); \
+  TCCR0A = _BV(WGM00); \
+  TCCR0B = _BV(WGM02) | _BV(CS00); \
+  OCR0A = pwmval; \
+  OCR0B = pwmval / 3; \
+})
+#define TIMER_COUNT_TOP      (SYSCLOCK * USECPERTICK / 1000000)
+#if (TIMER_COUNT_TOP < 256)
+#define TIMER_CONFIG_NORMAL() ({ \
+  TCCR0A = _BV(WGM01); \
+  TCCR0B = _BV(CS00); \
+  OCR0A = TIMER_COUNT_TOP; \
+  TCNT0 = 0; \
+})
+#else
+#define TIMER_CONFIG_NORMAL() ({ \
+  TCCR0A = _BV(WGM01); \
+  TCCR0B = _BV(CS01); \
+  OCR0A = TIMER_COUNT_TOP / 8; \
+  TCNT0 = 0; \
+})
+#endif
+
+#define TIMER_PWM_PIN        1  /* ATtiny85 */
+
+//---------------------------------------------------------
+// ESP32 (ESP8266 should likely be added here too)
+//
+
+// ESP32 has it own timer API and does not use these macros, but to avoid ifdef'ing
+// them out in the common code, they are defined to no-op. This allows the code to compile
+// (which it wouldn't otherwise) but irsend will not work until ESP32 specific code is written
+// for that -- merlin
+// As a warning, sending timing specific code from an ESP32 can be challenging if you need 100%
+// reliability because the arduino code may be interrupted and cause your sent waveform to be the
+// wrong length. This is specifically an issue for neopixels which require 800Khz resolution.
+// IR may just work as is with the common code since it's lower frequency, but if not, the other
+// way to do this on ESP32 is using the RMT built in driver like in this incomplete library below
+// https://github.com/ExploreEmbedded/ESP32_RMT
+#elif defined(IR_TIMER_USE_ESP32)
+#define TIMER_RESET	     
+#define TIMER_ENABLE_PWM     
+#define TIMER_DISABLE_PWM   Serial.println("IRsend not implemented for ESP32 yet");
+#define TIMER_ENABLE_INTR    
+#define TIMER_DISABLE_INTR   
+#define TIMER_INTR_NAME      
+
+//---------------------------------------------------------
+// Unknown Timer
+//
+#else
+#	error "Internal code configuration error, no known IR_USE_TIMER# defined\n"
+#endif
+
+#endif // ! boarddefs_h

lib/Arduino-IRremote/changelog.md

@@ -0,0 +1,78 @@
+## 2.3.3 - 2017/03/31
+- Added ESP32 IR receive support [PR #427](https://github.com/z3t0/Arduino-IRremote/pull/425)
+
+## 2.2.3 - 2017/03/27
+- Fix calculation of pause length in LEGO PF protocol [PR #427](https://github.com/z3t0/Arduino-IRremote/pull/427)
+
+## 2.2.2 - 2017/01/20
+- Fixed naming bug [PR #398](https://github.com/z3t0/Arduino-IRremote/pull/398)
+
+## 2.2.1 - 2016/07/27
+- Added tests for Lego Power Functions Protocol [PR #336](https://github.com/z3t0/Arduino-IRremote/pull/336)
+
+## 2.2.0 - 2016/06/28
+- Added support for ATmega8535
+- Added support for ATmega16
+- Added support for ATmega32
+- Added support for ATmega164
+- Added support for ATmega324
+- Added support for ATmega644
+- Added support for ATmega1284
+- Added support for ATmega64
+- Added support for ATmega128
+
+[PR](https://github.com/z3t0/Arduino-IRremote/pull/324)
+
+## 2.1.1 - 2016/05/04
+- Added Lego Power Functions Protocol [PR #309](https://github.com/z3t0/Arduino-IRremote/pull/309)
+
+## 2.1.0 - 2016/02/20
+- Improved Debugging [PR #258](https://github.com/z3t0/Arduino-IRremote/pull/258)
+- Display TIME instead of TICKS [PR #258](https://github.com/z3t0/Arduino-IRremote/pull/258)
+
+## 2.0.4 - 2016/02/20
+- Add Panasonic and JVC to IRrecord example [PR](https://github.com/z3t0/Arduino-IRremote/pull/54)
+
+## 2.0.3 - 2016/02/20
+- Change IRSend Raw parameter to const [PR](https://github.com/z3t0/Arduino-IRremote/pull/227)
+
+## 2.0.2 - 2015/12/02
+- Added IRremoteInfo Sketch - [PR](https://github.com/z3t0/Arduino-IRremote/pull/241)
+- Enforcing changelog.md
+
+## 2.0.1 - 2015/07/26 - [Release](https://github.com/shirriff/Arduino-IRremote/releases/tag/BETA)
+### Changes
+- Updated README
+- Updated Contributors
+- Fixed #110 Mess
+- Created Gitter Room
+- Added Gitter Badge
+- Standardised Code Base
+- Clean Debug Output
+- Optimized Send Loops
+- Modularized Design
+- Optimized and Updated Examples
+- Improved Documentation
+- Fixed and Improved many coding errors
+- Fixed Aiwa RC-T501 Decoding
+- Fixed Interrupt on ATmega8
+- Switched to Stable Release of @PlatformIO
+
+### Additions
+- Added Aiwa RC-T501 Protocol
+- Added Denon Protocol
+- Added Pronto Support
+- Added Library Properties
+- Added Template For New Protocols
+- Added this changelog
+- Added Teensy LC Support
+- Added ATtiny84 Support
+- Added ATtiny85 Support
+- Added isIdle method
+
+### Deletions
+- Removed (Fixed) #110
+- Broke Teensy 3 / 3.1 Support
+
+### Not Working
+- Teensy 3 / 3.1 Support is in Development

lib/Arduino-IRremote/examples/AiwaRCT501SendDemo/AiwaRCT501SendDemo.ino

@@ -0,0 +1,26 @@
+/*
+ * IRremote: IRsendDemo - demonstrates sending IR codes with IRsend
+ * An IR LED must be connected to Arduino PWM pin 3.
+ * Version 0.1 July, 2009
+ * Copyright 2009 Ken Shirriff
+ * http://arcfn.com
+ */
+
+#include "IRremote.h"
+
+#define POWER 0x7F80
+#define AIWA_RC_T501
+
+IRsend irsend;
+
+void setup() {
+  Serial.begin(9600);
+  Serial.println("Arduino Ready");
+}
+
+void loop() {
+  if (Serial.read() != -1) {
+    irsend.sendAiwaRCT501(POWER);
+    delay(60); // Optional
+  }
+}

lib/Arduino-IRremote/examples/IRrecord/IRrecord.ino

@@ -0,0 +1,183 @@
+/*
+ * IRrecord: record and play back IR signals as a minimal 
+ * An IR detector/demodulator must be connected to the input RECV_PIN.
+ * An IR LED must be connected to the output PWM pin 3.
+ * A button must be connected to the input BUTTON_PIN; this is the
+ * send button.
+ * A visible LED can be connected to STATUS_PIN to provide status.
+ *
+ * The logic is:
+ * If the button is pressed, send the IR code.
+ * If an IR code is received, record it.
+ *
+ * Version 0.11 September, 2009
+ * Copyright 2009 Ken Shirriff
+ * http://arcfn.com
+ */
+
+#include <IRremote.h>
+
+int RECV_PIN = 11;
+int BUTTON_PIN = 12;
+int STATUS_PIN = 13;
+
+IRrecv irrecv(RECV_PIN);
+IRsend irsend;
+
+decode_results results;
+
+void setup()
+{
+  Serial.begin(9600);
+  irrecv.enableIRIn(); // Start the receiver
+  pinMode(BUTTON_PIN, INPUT);
+  pinMode(STATUS_PIN, OUTPUT);
+}
+
+// Storage for the recorded code
+int codeType = -1; // The type of code
+unsigned long codeValue; // The code value if not raw
+unsigned int rawCodes[RAWBUF]; // The durations if raw
+int codeLen; // The length of the code
+int toggle = 0; // The RC5/6 toggle state
+
+// Stores the code for later playback
+// Most of this code is just logging
+void storeCode(decode_results *results) {
+  codeType = results->decode_type;
+  //int count = results->rawlen;
+  if (codeType == UNKNOWN) {
+    Serial.println("Received unknown code, saving as raw");
+    codeLen = results->rawlen - 1;
+    // To store raw codes:
+    // Drop first value (gap)
+    // Convert from ticks to microseconds
+    // Tweak marks shorter, and spaces longer to cancel out IR receiver distortion
+    for (int i = 1; i <= codeLen; i++) {
+      if (i % 2) {
+        // Mark
+        rawCodes[i - 1] = results->rawbuf[i]*USECPERTICK - MARK_EXCESS;
+        Serial.print(" m");
+      } 
+      else {
+        // Space
+        rawCodes[i - 1] = results->rawbuf[i]*USECPERTICK + MARK_EXCESS;
+        Serial.print(" s");
+      }
+      Serial.print(rawCodes[i - 1], DEC);
+    }
+    Serial.println("");
+  }
+  else {
+    if (codeType == NEC) {
+      Serial.print("Received NEC: ");
+      if (results->value == REPEAT) {
+        // Don't record a NEC repeat value as that's useless.
+        Serial.println("repeat; ignoring.");
+        return;
+      }
+    } 
+    else if (codeType == SONY) {
+      Serial.print("Received SONY: ");
+    } 
+    else if (codeType == PANASONIC) {
+      Serial.print("Received PANASONIC: ");
+    }
+    else if (codeType == JVC) {
+      Serial.print("Received JVC: ");
+    }
+    else if (codeType == RC5) {
+      Serial.print("Received RC5: ");
+    } 
+    else if (codeType == RC6) {
+      Serial.print("Received RC6: ");
+    } 
+    else {
+      Serial.print("Unexpected codeType ");
+      Serial.print(codeType, DEC);
+      Serial.println("");
+    }
+    Serial.println(results->value, HEX);
+    codeValue = results->value;
+    codeLen = results->bits;
+  }
+}
+
+void sendCode(int repeat) {
+  if (codeType == NEC) {
+    if (repeat) {
+      irsend.sendNEC(REPEAT, codeLen);
+      Serial.println("Sent NEC repeat");
+    } 
+    else {
+      irsend.sendNEC(codeValue, codeLen);
+      Serial.print("Sent NEC ");
+      Serial.println(codeValue, HEX);
+    }
+  } 
+  else if (codeType == SONY) {
+    irsend.sendSony(codeValue, codeLen);
+    Serial.print("Sent Sony ");
+    Serial.println(codeValue, HEX);
+  } 
+  else if (codeType == PANASONIC) {
+    irsend.sendPanasonic(codeValue, codeLen);
+    Serial.print("Sent Panasonic");
+    Serial.println(codeValue, HEX);
+  }
+  else if (codeType == JVC) {
+    irsend.sendJVC(codeValue, codeLen, false);
+    Serial.print("Sent JVC");
+    Serial.println(codeValue, HEX);
+  }
+  else if (codeType == RC5 || codeType == RC6) {
+    if (!repeat) {
+      // Flip the toggle bit for a new button press
+      toggle = 1 - toggle;
+    }
+    // Put the toggle bit into the code to send
+    codeValue = codeValue & ~(1 << (codeLen - 1));
+    codeValue = codeValue | (toggle << (codeLen - 1));
+    if (codeType == RC5) {
+      Serial.print("Sent RC5 ");
+      Serial.println(codeValue, HEX);
+      irsend.sendRC5(codeValue, codeLen);
+    } 
+    else {
+      irsend.sendRC6(codeValue, codeLen);
+      Serial.print("Sent RC6 ");
+      Serial.println(codeValue, HEX);
+    }
+  } 
+  else if (codeType == UNKNOWN /* i.e. raw */) {
+    // Assume 38 KHz
+    irsend.sendRaw(rawCodes, codeLen, 38);
+    Serial.println("Sent raw");
+  }
+}
+
+int lastButtonState;
+
+void loop() {
+  // If button pressed, send the code.
+  int buttonState = digitalRead(BUTTON_PIN);
+  if (lastButtonState == HIGH && buttonState == LOW) {
+    Serial.println("Released");
+    irrecv.enableIRIn(); // Re-enable receiver
+  }
+
+  if (buttonState) {
+    Serial.println("Pressed, sending");
+    digitalWrite(STATUS_PIN, HIGH);
+    sendCode(lastButtonState == buttonState);
+    digitalWrite(STATUS_PIN, LOW);
+    delay(50); // Wait a bit between retransmissions
+  } 
+  else if (irrecv.decode(&results)) {
+    digitalWrite(STATUS_PIN, HIGH);
+    storeCode(&results);
+    irrecv.resume(); // resume receiver
+    digitalWrite(STATUS_PIN, LOW);
+  }
+  lastButtonState = buttonState;
+}

lib/Arduino-IRremote/examples/IRrecvDemo/IRrecvDemo.ino

@@ -0,0 +1,33 @@
+/*
+ * IRremote: IRrecvDemo - demonstrates receiving IR codes with IRrecv
+ * An IR detector/demodulator must be connected to the input RECV_PIN.
+ * Version 0.1 July, 2009
+ * Copyright 2009 Ken Shirriff
+ * http://arcfn.com
+ */
+
+#include <IRremote.h>
+
+int RECV_PIN = 11;
+
+IRrecv irrecv(RECV_PIN);
+
+decode_results results;
+
+void setup()
+{
+  Serial.begin(9600);
+  // In case the interrupt driver crashes on setup, give a clue
+  // to the user what's going on.
+  Serial.println("Enabling IRin");
+  irrecv.enableIRIn(); // Start the receiver
+  Serial.println("Enabled IRin");
+}
+
+void loop() {
+  if (irrecv.decode(&results)) {
+    Serial.println(results.value, HEX);
+    irrecv.resume(); // Receive the next value
+  }
+  delay(100);
+}

lib/Arduino-IRremote/examples/IRrecvDump/IRrecvDump.ino

@@ -0,0 +1,95 @@
+/*
+ * IRremote: IRrecvDump - dump details of IR codes with IRrecv
+ * An IR detector/demodulator must be connected to the input RECV_PIN.
+ * Version 0.1 July, 2009
+ * Copyright 2009 Ken Shirriff
+ * http://arcfn.com
+ * JVC and Panasonic protocol added by Kristian Lauszus (Thanks to zenwheel and other people at the original blog post)
+ * LG added by Darryl Smith (based on the JVC protocol)
+ */
+
+#include <IRremote.h>
+
+/* 
+*  Default is Arduino pin D11. 
+*  You can change this to another available Arduino Pin.
+*  Your IR receiver should be connected to the pin defined here
+*/
+int RECV_PIN = 11;
+
+IRrecv irrecv(RECV_PIN);
+
+decode_results results;
+
+void setup()
+{
+  Serial.begin(9600);
+  irrecv.enableIRIn(); // Start the receiver
+}
+
+
+void dump(decode_results *results) {
+  // Dumps out the decode_results structure.
+  // Call this after IRrecv::decode()
+  int count = results->rawlen;
+  if (results->decode_type == UNKNOWN) {
+    Serial.print("Unknown encoding: ");
+  }
+  else if (results->decode_type == NEC) {
+    Serial.print("Decoded NEC: ");
+
+  }
+  else if (results->decode_type == SONY) {
+    Serial.print("Decoded SONY: ");
+  }
+  else if (results->decode_type == RC5) {
+    Serial.print("Decoded RC5: ");
+  }
+  else if (results->decode_type == RC6) {
+    Serial.print("Decoded RC6: ");
+  }
+  else if (results->decode_type == PANASONIC) {
+    Serial.print("Decoded PANASONIC - Address: ");
+    Serial.print(results->address, HEX);
+    Serial.print(" Value: ");
+  }
+  else if (results->decode_type == LG) {
+    Serial.print("Decoded LG: ");
+  }
+  else if (results->decode_type == JVC) {
+    Serial.print("Decoded JVC: ");
+  }
+  else if (results->decode_type == AIWA_RC_T501) {
+    Serial.print("Decoded AIWA RC T501: ");
+  }
+  else if (results->decode_type == WHYNTER) {
+    Serial.print("Decoded Whynter: ");
+  }
+  Serial.print(results->value, HEX);
+  Serial.print(" (");
+  Serial.print(results->bits, DEC);
+  Serial.println(" bits)");
+  Serial.print("Raw (");
+  Serial.print(count, DEC);
+  Serial.print("): ");
+
+  for (int i = 1; i < count; i++) {
+    if (i & 1) {
+      Serial.print(results->rawbuf[i]*USECPERTICK, DEC);
+    }
+    else {
+      Serial.write('-');
+      Serial.print((unsigned long) results->rawbuf[i]*USECPERTICK, DEC);
+    }
+    Serial.print(" ");
+  }
+  Serial.println();
+}
+
+void loop() {
+  if (irrecv.decode(&results)) {
+    Serial.println(results.value, HEX);
+    dump(&results);
+    irrecv.resume(); // Receive the next value
+  }
+}

lib/Arduino-IRremote/examples/IRrecvDumpV2/IRrecvDumpV2.ino

@@ -0,0 +1,177 @@
+//------------------------------------------------------------------------------
+// Include the IRremote library header
+//
+#include <IRremote.h>
+
+//------------------------------------------------------------------------------
+// Tell IRremote which Arduino pin is connected to the IR Receiver (TSOP4838)
+//
+int recvPin = 11;
+IRrecv irrecv(recvPin);
+
+//+=============================================================================
+// Configure the Arduino
+//
+void  setup ( )
+{
+  Serial.begin(9600);   // Status message will be sent to PC at 9600 baud
+  irrecv.enableIRIn();  // Start the receiver
+}
+
+//+=============================================================================
+// Display IR code
+//
+void  ircode (decode_results *results)
+{
+  // Panasonic has an Address
+  if (results->decode_type == PANASONIC) {
+    Serial.print(results->address, HEX);
+    Serial.print(":");
+  }
+
+  // Print Code
+  Serial.print(results->value, HEX);
+}
+
+//+=============================================================================
+// Display encoding type
+//
+void  encoding (decode_results *results)
+{
+  switch (results->decode_type) {
+    default:
+    case UNKNOWN:      Serial.print("UNKNOWN");       break ;
+    case NEC:          Serial.print("NEC");           break ;
+    case SONY:         Serial.print("SONY");          break ;
+    case RC5:          Serial.print("RC5");           break ;
+    case RC6:          Serial.print("RC6");           break ;
+    case DISH:         Serial.print("DISH");          break ;
+    case SHARP:        Serial.print("SHARP");         break ;
+    case JVC:          Serial.print("JVC");           break ;
+    case SANYO:        Serial.print("SANYO");         break ;
+    case MITSUBISHI:   Serial.print("MITSUBISHI");    break ;
+    case SAMSUNG:      Serial.print("SAMSUNG");       break ;
+    case LG:           Serial.print("LG");            break ;
+    case WHYNTER:      Serial.print("WHYNTER");       break ;
+    case AIWA_RC_T501: Serial.print("AIWA_RC_T501");  break ;
+    case PANASONIC:    Serial.print("PANASONIC");     break ;
+    case DENON:        Serial.print("Denon");         break ;
+  }
+}
+
+//+=============================================================================
+// Dump out the decode_results structure.
+//
+void  dumpInfo (decode_results *results)
+{
+  // Check if the buffer overflowed
+  if (results->overflow) {
+    Serial.println("IR code too long. Edit IRremoteInt.h and increase RAWBUF");
+    return;
+  }
+
+  // Show Encoding standard
+  Serial.print("Encoding  : ");
+  encoding(results);
+  Serial.println("");
+
+  // Show Code & length
+  Serial.print("Code      : ");
+  ircode(results);
+  Serial.print(" (");
+  Serial.print(results->bits, DEC);
+  Serial.println(" bits)");
+}
+
+//+=============================================================================
+// Dump out the decode_results structure.
+//
+void  dumpRaw (decode_results *results)
+{
+  // Print Raw data
+  Serial.print("Timing[");
+  Serial.print(results->rawlen-1, DEC);
+  Serial.println("]: ");
+
+  for (int i = 1;  i < results->rawlen;  i++) {
+    unsigned long  x = results->rawbuf[i] * USECPERTICK;
+    if (!(i & 1)) {  // even
+      Serial.print("-");
+      if (x < 1000)  Serial.print(" ") ;
+      if (x < 100)   Serial.print(" ") ;
+      Serial.print(x, DEC);
+    } else {  // odd
+      Serial.print("     ");
+      Serial.print("+");
+      if (x < 1000)  Serial.print(" ") ;
+      if (x < 100)   Serial.print(" ") ;
+      Serial.print(x, DEC);
+      if (i < results->rawlen-1) Serial.print(", "); //',' not needed for last one
+    }
+    if (!(i % 8))  Serial.println("");
+  }
+  Serial.println("");                    // Newline
+}
+
+//+=============================================================================
+// Dump out the decode_results structure.
+//
+void  dumpCode (decode_results *results)
+{
+  // Start declaration
+  Serial.print("unsigned int  ");          // variable type
+  Serial.print("rawData[");                // array name
+  Serial.print(results->rawlen - 1, DEC);  // array size
+  Serial.print("] = {");                   // Start declaration
+
+  // Dump data
+  for (int i = 1;  i < results->rawlen;  i++) {
+    Serial.print(results->rawbuf[i] * USECPERTICK, DEC);
+    if ( i < results->rawlen-1 ) Serial.print(","); // ',' not needed on last one
+    if (!(i & 1))  Serial.print(" ");
+  }
+
+  // End declaration
+  Serial.print("};");  // 
+
+  // Comment
+  Serial.print("  // ");
+  encoding(results);
+  Serial.print(" ");
+  ircode(results);
+
+  // Newline
+  Serial.println("");
+
+  // Now dump "known" codes
+  if (results->decode_type != UNKNOWN) {
+
+    // Some protocols have an address
+    if (results->decode_type == PANASONIC) {
+      Serial.print("unsigned int  addr = 0x");
+      Serial.print(results->address, HEX);
+      Serial.println(";");
+    }
+
+    // All protocols have data
+    Serial.print("unsigned int  data = 0x");
+    Serial.print(results->value, HEX);
+    Serial.println(";");
+  }
+}
+
+//+=============================================================================
+// The repeating section of the code
+//
+void  loop ( )
+{
+  decode_results  results;        // Somewhere to store the results
+
+  if (irrecv.decode(&results)) {  // Grab an IR code
+    dumpInfo(&results);           // Output the results
+    dumpRaw(&results);            // Output the results in RAW format
+    dumpCode(&results);           // Output the results as source code
+    Serial.println("");           // Blank line between entries
+    irrecv.resume();              // Prepare for the next value
+  }
+}

lib/Arduino-IRremote/examples/IRrelay/IRrelay.ino

@@ -0,0 +1,85 @@
+/*
+ * IRremote: IRrecvDemo - demonstrates receiving IR codes with IRrecv
+ * An IR detector/demodulator must be connected to the input RECV_PIN.
+ * Version 0.1 July, 2009
+ * Copyright 2009 Ken Shirriff
+ * http://arcfn.com
+ */
+
+#include <IRremote.h>
+
+int RECV_PIN = 11;
+int RELAY_PIN = 4;
+
+IRrecv irrecv(RECV_PIN);
+decode_results results;
+
+// Dumps out the decode_results structure.
+// Call this after IRrecv::decode()
+// void * to work around compiler issue
+//void dump(void *v) {
+//  decode_results *results = (decode_results *)v
+void dump(decode_results *results) {
+  int count = results->rawlen;
+  if (results->decode_type == UNKNOWN) {
+    Serial.println("Could not decode message");
+  } 
+  else {
+    if (results->decode_type == NEC) {
+      Serial.print("Decoded NEC: ");
+    } 
+    else if (results->decode_type == SONY) {
+      Serial.print("Decoded SONY: ");
+    } 
+    else if (results->decode_type == RC5) {
+      Serial.print("Decoded RC5: ");
+    } 
+    else if (results->decode_type == RC6) {
+      Serial.print("Decoded RC6: ");
+    }
+    Serial.print(results->value, HEX);
+    Serial.print(" (");
+    Serial.print(results->bits, DEC);
+    Serial.println(" bits)");
+  }
+  Serial.print("Raw (");
+  Serial.print(count, DEC);
+  Serial.print("): ");
+
+  for (int i = 0; i < count; i++) {
+    if ((i % 2) == 1) {
+      Serial.print(results->rawbuf[i]*USECPERTICK, DEC);
+    } 
+    else {
+      Serial.print(-(int)results->rawbuf[i]*USECPERTICK, DEC);
+    }
+    Serial.print(" ");
+  }
+  Serial.println("");
+}
+
+void setup()
+{
+  pinMode(RELAY_PIN, OUTPUT);
+  pinMode(13, OUTPUT);
+    Serial.begin(9600);
+  irrecv.enableIRIn(); // Start the receiver
+}
+
+int on = 0;
+unsigned long last = millis();
+
+void loop() {
+  if (irrecv.decode(&results)) {
+    // If it's been at least 1/4 second since the last
+    // IR received, toggle the relay
+    if (millis() - last > 250) {
+      on = !on;
+      digitalWrite(RELAY_PIN, on ? HIGH : LOW);
+      digitalWrite(13, on ? HIGH : LOW);
+      dump(&results);
+    }
+    last = millis();      
+    irrecv.resume(); // Receive the next value
+  }
+}

lib/Arduino-IRremote/examples/IRremoteInfo/IRremoteInfo.ino

@@ -0,0 +1,230 @@
+/*
+ * IRremote: IRremoteInfo - prints relevant config info & settings for IRremote over serial
+ * Intended to help identify & troubleshoot the various settings of IRremote
+ * For example, sometimes users are unsure of which pin is used for Tx or the RAWBUF values
+ * This example can be used to assist the user directly or with support.
+ * Intended to help identify & troubleshoot the various settings of IRremote
+ * Hopefully this utility will be a useful tool for support & troubleshooting for IRremote
+ * Check out the blog post describing the sketch via http://www.analysir.com/blog/2015/11/28/helper-utility-for-troubleshooting-irremote/
+ * Version 1.0 November 2015
+ * Original Author: AnalysIR - IR software & modules for Makers & Pros, visit http://www.AnalysIR.com
+ */
+
+
+#include <IRremote.h>
+
+void setup()
+{
+  Serial.begin(115200); //You may alter the BAUD rate here as needed
+  while (!Serial); //wait until Serial is established - required on some Platforms
+
+  //Runs only once per restart of the Arduino.
+  dumpHeader();
+  dumpRAWBUF();
+  dumpTIMER();
+  dumpTimerPin();
+  dumpClock();
+  dumpPlatform();
+  dumpPulseParams();
+  dumpSignalParams();
+  dumpArduinoIDE();
+  dumpDebugMode();
+  dumpProtocols();
+  dumpFooter();
+}
+
+void loop() {
+  //nothing to do!
+}
+
+void dumpRAWBUF() {
+  Serial.print(F("RAWBUF: "));
+  Serial.println(RAWBUF);
+}
+
+void dumpTIMER() {
+  boolean flag = false;
+#ifdef IR_USE_TIMER1
+  Serial.print(F("Timer defined for use: ")); Serial.println(F("Timer1")); flag = true;
+#endif
+#ifdef IR_USE_TIMER2
+  Serial.print(F("Timer defined for use: ")); Serial.println(F("Timer2")); flag = true;
+#endif
+#ifdef IR_USE_TIMER3
+  Serial.print(F("Timer defined for use: ")); Serial.println(F("Timer3")); flag = true;
+#endif
+#ifdef IR_USE_TIMER4
+  Serial.print(F("Timer defined for use: ")); Serial.println(F("Timer4")); flag = true;
+#endif
+#ifdef IR_USE_TIMER5
+  Serial.print(F("Timer defined for use: ")); Serial.println(F("Timer5")); flag = true;
+#endif
+#ifdef IR_USE_TIMER4_HS
+  Serial.print(F("Timer defined for use: ")); Serial.println(F("Timer4_HS")); flag = true;
+#endif
+#ifdef IR_USE_TIMER_CMT
+  Serial.print(F("Timer defined for use: ")); Serial.println(F("Timer_CMT")); flag = true;
+#endif
+#ifdef IR_USE_TIMER_TPM1
+  Serial.print(F("Timer defined for use: ")); Serial.println(F("Timer_TPM1")); flag = true;
+#endif
+#ifdef IR_USE_TIMER_TINY0
+  Serial.print(F("Timer defined for use: ")); Serial.println(F("Timer_TINY0")); flag = true;
+#endif
+
+  if (!flag) {
+    Serial.print(F("Timer Error: ")); Serial.println(F("not defined"));
+  }
+}
+
+void dumpTimerPin() {
+  Serial.print(F("IR Tx Pin: "));
+  Serial.println(TIMER_PWM_PIN);
+}
+
+void dumpClock() {
+  Serial.print(F("MCU Clock: "));
+  Serial.println(F_CPU);
+}
+
+void dumpPlatform() {
+  Serial.print(F("MCU Platform: "));
+
+#if defined(__AVR_ATmega1280__)
+  Serial.println(F("Arduino Mega1280"));
+#elif  defined(__AVR_ATmega2560__)
+  Serial.println(F("Arduino Mega2560"));
+#elif defined(__AVR_AT90USB162__)
+  Serial.println(F("Teensy 1.0 / AT90USB162"));
+  // Teensy 2.0
+#elif defined(__AVR_ATmega32U4__)
+  Serial.println(F("Arduino Leonardo / Yun / Teensy 1.0 / ATmega32U4"));
+#elif defined(__MK20DX128__) || defined(__MK20DX256__)
+  Serial.println(F("Teensy 3.0 / Teensy 3.1 / MK20DX128 / MK20DX256"));
+#elif defined(__MKL26Z64__)
+  Serial.println(F("Teensy-LC / MKL26Z64"));
+#elif defined(__AVR_AT90USB646__)
+  Serial.println(F("Teensy++ 1.0 / AT90USB646"));
+#elif defined(__AVR_AT90USB1286__)
+  Serial.println(F("Teensy++ 2.0 / AT90USB1286"));
+#elif defined(__AVR_ATmega1284__) || defined(__AVR_ATmega1284P__)
+  Serial.println(F("ATmega1284"));
+#elif defined(__AVR_ATmega644__) || defined(__AVR_ATmega644P__)
+  Serial.println(F("ATmega644"));
+#elif defined(__AVR_ATmega324P__) || defined(__AVR_ATmega324A__) || defined(__AVR_ATmega324PA__)
+  Serial.println(F("ATmega324")); 
+#elif defined(__AVR_ATmega164A__) || defined(__AVR_ATmega164P__)
+  Serial.println(F("ATmega164"));
+#elif defined(__AVR_ATmega128__)
+  Serial.println(F("ATmega128"));
+#elif defined(__AVR_ATmega88__) || defined(__AVR_ATmega88P__)
+  Serial.println(F("ATmega88"));  
+#elif defined(__AVR_ATmega64__)
+  Serial.println(F("ATmega64"));
+#elif defined(__AVR_ATmega48__) || defined(__AVR_ATmega48P__)
+  Serial.println(F("ATmega48"));
+#elif defined(__AVR_ATmega32__)
+  Serial.println(F("ATmega32"));  
+#elif defined(__AVR_ATmega16__)
+  Serial.println(F("ATmega16"));
+#elif defined(__AVR_ATmega8535__)
+  Serial.println(F("ATmega8535"));  
+#elif defined(__AVR_ATmega8__)
+  Serial.println(F("Atmega8"));
+#elif defined(__AVR_ATtiny84__)
+  Serial.println(F("ATtiny84"));
+#elif defined(__AVR_ATtiny85__)
+  Serial.println(F("ATtiny85"));
+#else
+  Serial.println(F("ATmega328(P) / (Duemilanove, Diecimila, LilyPad, Mini, Micro, Fio, Nano, etc)"));
+#endif
+}
+
+void dumpPulseParams() {
+  Serial.print(F("Mark Excess: ")); Serial.print(MARK_EXCESS);; Serial.println(F(" uSecs"));
+  Serial.print(F("Microseconds per tick: ")); Serial.print(USECPERTICK);; Serial.println(F(" uSecs"));
+  Serial.print(F("Measurement tolerance: ")); Serial.print(TOLERANCE); Serial.println(F("%"));
+}
+
+void dumpSignalParams() {
+  Serial.print(F("Minimum Gap between IR Signals: ")); Serial.print(_GAP); Serial.println(F(" uSecs"));
+}
+
+void dumpDebugMode() {
+  Serial.print(F("Debug Mode: "));
+#if DEBUG
+  Serial.println(F("ON"));
+#else
+  Serial.println(F("OFF (Normal)"));
+#endif
+
+}
+
+void dumpArduinoIDE() {
+  Serial.print(F("Arduino IDE version: "));
+  Serial.print(ARDUINO / 10000);
+  Serial.write('.');
+  Serial.print((ARDUINO % 10000) / 100);
+  Serial.write('.');
+  Serial.println(ARDUINO % 100);
+}
+
+void dumpProtocols() {
+
+  Serial.println(); Serial.print(F("IR PROTOCOLS  "));  Serial.print(F("SEND     "));  Serial.println(F("DECODE"));
+  Serial.print(F("============= "));  Serial.print(F("======== "));  Serial.println(F("========"));
+  Serial.print(F("RC5:          "));  printSendEnabled(SEND_RC5);  printDecodeEnabled(DECODE_RC6);
+  Serial.print(F("RC6:          "));  printSendEnabled(SEND_RC6);  printDecodeEnabled(DECODE_RC5);
+  Serial.print(F("NEC:          "));  printSendEnabled(SEND_NEC);  printDecodeEnabled(DECODE_NEC);
+  Serial.print(F("SONY:         "));  printSendEnabled(SEND_SONY);  printDecodeEnabled(DECODE_SONY);
+  Serial.print(F("PANASONIC:    "));  printSendEnabled(SEND_PANASONIC);  printDecodeEnabled(DECODE_PANASONIC);
+  Serial.print(F("JVC:          "));  printSendEnabled(SEND_JVC);  printDecodeEnabled(DECODE_JVC);
+  Serial.print(F("SAMSUNG:      "));  printSendEnabled(SEND_SAMSUNG);  printDecodeEnabled(DECODE_SAMSUNG);
+  Serial.print(F("WHYNTER:      "));  printSendEnabled(SEND_WHYNTER);  printDecodeEnabled(DECODE_WHYNTER);
+  Serial.print(F("AIWA_RC_T501: "));  printSendEnabled(SEND_AIWA_RC_T501);  printDecodeEnabled(DECODE_AIWA_RC_T501);
+  Serial.print(F("LG:           "));  printSendEnabled(SEND_LG);  printDecodeEnabled(DECODE_LG);
+  Serial.print(F("SANYO:        "));  printSendEnabled(SEND_SANYO);  printDecodeEnabled(DECODE_SANYO);
+  Serial.print(F("MITSUBISHI:   "));  printSendEnabled(SEND_MITSUBISHI);  printDecodeEnabled(DECODE_MITSUBISHI);
+  Serial.print(F("DISH:         "));  printSendEnabled(SEND_DISH);  printDecodeEnabled(DECODE_DISH);
+  Serial.print(F("SHARP:        "));  printSendEnabled(SEND_SHARP);  printDecodeEnabled(DECODE_SHARP);
+  Serial.print(F("DENON:        "));  printSendEnabled(SEND_DENON);  printDecodeEnabled(DECODE_DENON);
+  Serial.print(F("PRONTO:       "));  printSendEnabled(SEND_PRONTO);  Serial.println(F("(Not Applicable)"));
+}
+
+void printSendEnabled(int flag) {
+  if (flag) {
+    Serial.print(F("Enabled  "));
+  }
+  else {
+    Serial.print(F("Disabled "));
+  }
+}
+
+void printDecodeEnabled(int flag) {
+  if (flag) {
+    Serial.println(F("Enabled"));
+  }
+  else {
+    Serial.println(F("Disabled"));
+  }
+}
+
+void dumpHeader() {
+  Serial.println(F("IRremoteInfo - by AnalysIR (http://www.AnalysIR.com/)"));
+  Serial.println(F("             - A helper sketch to assist in troubleshooting issues with the library by reviewing the settings within the IRremote library"));
+  Serial.println(F("             - Prints out the important settings within the library, which can be configured to suit the many supported platforms"));
+  Serial.println(F("             - When seeking on-line support, please post or upload the output of this sketch, where appropriate"));
+  Serial.println();
+  Serial.println(F("IRremote Library Settings"));
+  Serial.println(F("========================="));
+}
+
+void dumpFooter() {
+  Serial.println();
+  Serial.println(F("Notes: "));
+  Serial.println(F("     - Most of the seetings above can be configured in the following files included as part of the library"));
+  Serial.println(F("     - IRremteInt.h"));
+  Serial.println(F("     - IRremote.h"));
+  Serial.println(F("     - You can save SRAM by disabling the Decode or Send features for any protocol (Near the top of IRremoteInt.h)"));
+  Serial.println(F("     - Some Timer conflicts, with other libraries, can be easily resolved by configuring a differnt Timer for your platform"));
+}

lib/Arduino-IRremote/examples/IRsendDemo/IRsendDemo.ino

@@ -0,0 +1,24 @@
+/*
+ * IRremote: IRsendDemo - demonstrates sending IR codes with IRsend
+ * An IR LED must be connected to Arduino PWM pin 3.
+ * Version 0.1 July, 2009
+ * Copyright 2009 Ken Shirriff
+ * http://arcfn.com
+ */
+
+
+#include <IRremote.h>
+
+IRsend irsend;
+
+void setup()
+{
+}
+
+void loop() {
+	for (int i = 0; i < 3; i++) {
+		irsend.sendSony(0xa90, 12);
+		delay(40);
+	}
+	delay(5000); //5 second delay between each signal burst
+}

lib/Arduino-IRremote/examples/IRsendRawDemo/IRsendRawDemo.ino

@@ -0,0 +1,37 @@
+/*
+ * IRremote: IRsendRawDemo - demonstrates sending IR codes with sendRaw
+ * An IR LED must be connected to Arduino PWM pin 3.
+ * Version 0.1 July, 2009
+ * Copyright 2009 Ken Shirriff
+ * http://arcfn.com
+ *
+ * IRsendRawDemo - added by AnalysIR (via www.AnalysIR.com), 24 August 2015
+ *
+ * This example shows how to send a RAW signal using the IRremote library.
+ * The example signal is actually a 32 bit NEC signal.
+ * Remote Control button: LGTV Power On/Off. 
+ * Hex Value: 0x20DF10EF, 32 bits
+ * 
+ * It is more efficient to use the sendNEC function to send NEC signals. 
+ * Use of sendRaw here, serves only as an example of using the function.
+ * 
+ */
+
+
+#include <IRremote.h>
+
+IRsend irsend;
+
+void setup()
+{
+
+}
+
+void loop() {
+  int khz = 38; // 38kHz carrier frequency for the NEC protocol
+  unsigned int irSignal[] = {9000, 4500, 560, 560, 560, 560, 560, 1690, 560, 560, 560, 560, 560, 560, 560, 560, 560, 560, 560, 1690, 560, 1690, 560, 560, 560, 1690, 560, 1690, 560, 1690, 560, 1690, 560, 1690, 560, 560, 560, 560, 560, 560, 560, 1690, 560, 560, 560, 560, 560, 560, 560, 560, 560, 1690, 560, 1690, 560, 1690, 560, 560, 560, 1690, 560, 1690, 560, 1690, 560, 1690, 560, 39416, 9000, 2210, 560}; //AnalysIR Batch Export (IRremote) - RAW
+  
+  irsend.sendRaw(irSignal, sizeof(irSignal) / sizeof(irSignal[0]), khz); //Note the approach used to automatically calculate the size of the array.
+
+  delay(5000); //In this example, the signal will be repeated every 5 seconds, approximately.
+}

lib/Arduino-IRremote/examples/IRtest/IRtest.ino

@@ -0,0 +1,190 @@
+/*
+ * IRremote: IRtest unittest
+ * Version 0.1 July, 2009
+ * Copyright 2009 Ken Shirriff
+ * http://arcfn.com
+ *
+ * Note: to run these tests, edit IRremote/IRremote.h to add "#define TEST"
+ * You must then recompile the library by removing IRremote.o and restarting
+ * the arduino IDE.
+ */
+
+#include <IRremote.h>
+#include <IRremoteInt.h>
+
+// Dumps out the decode_results structure.
+// Call this after IRrecv::decode()
+// void * to work around compiler issue
+//void dump(void *v) {
+//  decode_results *results = (decode_results *)v
+void dump(decode_results *results) {
+  int count = results->rawlen;
+  if (results->decode_type == UNKNOWN) {
+    Serial.println("Could not decode message");
+  } 
+  else {
+    if (results->decode_type == NEC) {
+      Serial.print("Decoded NEC: ");
+    } 
+    else if (results->decode_type == SONY) {
+      Serial.print("Decoded SONY: ");
+    } 
+    else if (results->decode_type == RC5) {
+      Serial.print("Decoded RC5: ");
+    } 
+    else if (results->decode_type == RC6) {
+      Serial.print("Decoded RC6: ");
+    }
+    Serial.print(results->value, HEX);
+    Serial.print(" (");
+    Serial.print(results->bits, DEC);
+    Serial.println(" bits)");
+  }
+  Serial.print("Raw (");
+  Serial.print(count, DEC);
+  Serial.print("): ");
+
+  for (int i = 0; i < count; i++) {
+    if ((i % 2) == 1) {
+      Serial.print(results->rawbuf[i]*USECPERTICK, DEC);
+    } 
+    else {
+      Serial.print(-(int)results->rawbuf[i]*USECPERTICK, DEC);
+    }
+    Serial.print(" ");
+  }
+  Serial.println("");
+}
+
+IRrecv irrecv(0);
+decode_results results;
+
+class IRsendDummy : 
+public IRsend
+{
+public:
+  // For testing, just log the marks/spaces
+#define SENDLOG_LEN 128
+  int sendlog[SENDLOG_LEN];
+  int sendlogcnt;
+  IRsendDummy() : 
+  IRsend() {
+  }
+  void reset() {
+    sendlogcnt = 0;
+  }
+  void mark(int time) {
+    sendlog[sendlogcnt] = time;
+    if (sendlogcnt < SENDLOG_LEN) sendlogcnt++;
+  }
+  void space(int time) {
+    sendlog[sendlogcnt] = -time;
+    if (sendlogcnt < SENDLOG_LEN) sendlogcnt++;
+  }
+  // Copies the dummy buf into the interrupt buf
+  void useDummyBuf() {
+    int last = SPACE;
+    irparams.rcvstate = STATE_STOP;
+    irparams.rawlen = 1; // Skip the gap
+    for (int i = 0 ; i < sendlogcnt; i++) {
+      if (sendlog[i] < 0) {
+        if (last == MARK) {
+          // New space
+          irparams.rawbuf[irparams.rawlen++] = (-sendlog[i] - MARK_EXCESS) / USECPERTICK;
+          last = SPACE;
+        } 
+        else {
+          // More space
+          irparams.rawbuf[irparams.rawlen - 1] += -sendlog[i] / USECPERTICK;
+        }
+      } 
+      else if (sendlog[i] > 0) {
+        if (last == SPACE) {
+          // New mark
+          irparams.rawbuf[irparams.rawlen++] = (sendlog[i] + MARK_EXCESS) / USECPERTICK;
+          last = MARK;
+        } 
+        else {
+          // More mark
+          irparams.rawbuf[irparams.rawlen - 1] += sendlog[i] / USECPERTICK;
+        }
+      }
+    }
+    if (irparams.rawlen % 2) {
+      irparams.rawlen--; // Remove trailing space
+    }
+  }
+};
+
+IRsendDummy irsenddummy;
+
+void verify(unsigned long val, int bits, int type) {
+  irsenddummy.useDummyBuf();
+  irrecv.decode(&results);
+  Serial.print("Testing ");
+  Serial.print(val, HEX);
+  if (results.value == val && results.bits == bits && results.decode_type == type) {
+    Serial.println(": OK");
+  } 
+  else {
+    Serial.println(": Error");
+    dump(&results);
+  }
+}  
+
+void testNEC(unsigned long val, int bits) {
+  irsenddummy.reset();
+  irsenddummy.sendNEC(val, bits);
+  verify(val, bits, NEC);
+}
+void testSony(unsigned long val, int bits) {
+  irsenddummy.reset();
+  irsenddummy.sendSony(val, bits);
+  verify(val, bits, SONY);
+}
+void testRC5(unsigned long val, int bits) {
+  irsenddummy.reset();
+  irsenddummy.sendRC5(val, bits);
+  verify(val, bits, RC5);
+}
+void testRC6(unsigned long val, int bits) {
+  irsenddummy.reset();
+  irsenddummy.sendRC6(val, bits);
+  verify(val, bits, RC6);
+}
+
+void test() {
+  Serial.println("NEC tests");
+  testNEC(0x00000000, 32);
+  testNEC(0xffffffff, 32);
+  testNEC(0xaaaaaaaa, 32);
+  testNEC(0x55555555, 32);
+  testNEC(0x12345678, 32);
+  Serial.println("Sony tests");
+  testSony(0xfff, 12);
+  testSony(0x000, 12);
+  testSony(0xaaa, 12);
+  testSony(0x555, 12);
+  testSony(0x123, 12);
+  Serial.println("RC5 tests");
+  testRC5(0xfff, 12);
+  testRC5(0x000, 12);
+  testRC5(0xaaa, 12);
+  testRC5(0x555, 12);
+  testRC5(0x123, 12);
+  Serial.println("RC6 tests");
+  testRC6(0xfffff, 20);
+  testRC6(0x00000, 20);
+  testRC6(0xaaaaa, 20);
+  testRC6(0x55555, 20);
+  testRC6(0x12345, 20);
+}
+
+void setup()
+{
+  Serial.begin(9600);
+  test();
+}
+
+void loop() {
+}

lib/Arduino-IRremote/examples/IRtest2/IRtest2.ino

@@ -0,0 +1,290 @@
+/*
+ * Test send/receive functions of IRremote, using a pair of Arduinos.
+ *
+ * Arduino #1 should have an IR LED connected to the send pin (3).
+ * Arduino #2 should have an IR detector/demodulator connected to the
+ * receive pin (11) and a visible LED connected to pin 3.
+ *
+ * The cycle:
+ *  Arduino #1 will wait 2 seconds, then run through the tests.
+ *  It repeats this forever.
+ *  Arduino #2 will wait for at least one second of no signal
+ *  (to synchronize with #1).  It will then wait for the same test
+ *  signals.  It will log all the status to the serial port.  It will
+ *  also indicate status through the LED, which will flash each time a test
+ *  is completed.  If there is an error, it will light up for 5 seconds.
+ *
+ * The test passes if the LED flashes 19 times, pauses, and then repeats.
+ * The test fails if the LED lights for 5 seconds.
+ *
+ * The test software automatically decides which board is the sender and which is
+ * the receiver by looking for an input on the send pin, which will indicate
+ * the sender.  You should hook the serial port to the receiver for debugging.
+ *  
+ * Copyright 2010 Ken Shirriff
+ * http://arcfn.com
+ */
+
+#include <IRremote.h>
+
+int RECV_PIN = 11;
+int LED_PIN = 3;
+
+IRrecv irrecv(RECV_PIN);
+IRsend irsend;
+
+decode_results results;
+
+#define RECEIVER 1
+#define SENDER 2
+#define ERROR 3
+
+int mode;
+
+void setup()
+{
+  Serial.begin(9600);
+  // Check RECV_PIN to decide if we're RECEIVER or SENDER
+  if (digitalRead(RECV_PIN) == HIGH) {
+    mode = RECEIVER;
+    irrecv.enableIRIn();
+    pinMode(LED_PIN, OUTPUT);
+    digitalWrite(LED_PIN, LOW);
+    Serial.println("Receiver mode");
+  } 
+  else {
+    mode = SENDER;
+    Serial.println("Sender mode");
+  }
+}
+
+// Wait for the gap between tests, to synchronize with
+// the sender.
+// Specifically, wait for a signal followed by a gap of at last gap ms.
+void waitForGap(unsigned long gap) {
+  Serial.println("Waiting for gap");
+  while (1) {
+    while (digitalRead(RECV_PIN) == LOW) { 
+    }
+    unsigned long time = millis();
+    while (digitalRead(RECV_PIN) == HIGH) {
+      if (millis() - time > gap) {
+        return;
+      }
+    }
+  }
+}
+
+// Dumps out the decode_results structure.
+// Call this after IRrecv::decode()
+void dump(decode_results *results) {
+  int count = results->rawlen;
+  if (results->decode_type == UNKNOWN) {
+    Serial.println("Could not decode message");
+  } 
+  else {
+    if (results->decode_type == NEC) {
+      Serial.print("Decoded NEC: ");
+    } 
+    else if (results->decode_type == SONY) {
+      Serial.print("Decoded SONY: ");
+    } 
+    else if (results->decode_type == RC5) {
+      Serial.print("Decoded RC5: ");
+    } 
+    else if (results->decode_type == RC6) {
+      Serial.print("Decoded RC6: ");
+    }
+    Serial.print(results->value, HEX);
+    Serial.print(" (");
+    Serial.print(results->bits, DEC);
+    Serial.println(" bits)");
+  }
+  Serial.print("Raw (");
+  Serial.print(count, DEC);
+  Serial.print("): ");
+
+  for (int i = 0; i < count; i++) {
+    if ((i % 2) == 1) {
+      Serial.print(results->rawbuf[i]*USECPERTICK, DEC);
+    } 
+    else {
+      Serial.print(-(int)results->rawbuf[i]*USECPERTICK, DEC);
+    }
+    Serial.print(" ");
+  }
+  Serial.println("");
+}
+
+
+// Test send or receive.
+// If mode is SENDER, send a code of the specified type, value, and bits
+// If mode is RECEIVER, receive a code and verify that it is of the
+// specified type, value, and bits.  For success, the LED is flashed;
+// for failure, the mode is set to ERROR.
+// The motivation behind this method is that the sender and the receiver
+// can do the same test calls, and the mode variable indicates whether
+// to send or receive.
+void test(const char *label, int type, unsigned long value, int bits) {
+  if (mode == SENDER) {
+    Serial.println(label);
+    if (type == NEC) {
+      irsend.sendNEC(value, bits);
+    } 
+    else if (type == SONY) {
+      irsend.sendSony(value, bits);
+    } 
+    else if (type == RC5) {
+      irsend.sendRC5(value, bits);
+    } 
+    else if (type == RC6) {
+      irsend.sendRC6(value, bits);
+    } 
+    else {
+      Serial.print(label);
+      Serial.println("Bad type!");
+    }
+    delay(200);
+  } 
+  else if (mode == RECEIVER) {
+    irrecv.resume(); // Receive the next value
+    unsigned long max_time = millis() + 30000;
+    Serial.print(label);
+
+    // Wait for decode or timeout
+    while (!irrecv.decode(&results)) {
+      if (millis() > max_time) {
+        Serial.println("Timeout receiving data");
+        mode = ERROR;
+        return;
+      }
+    }
+    if (type == results.decode_type && value == results.value && bits == results.bits) {
+      Serial.println (": OK");
+      digitalWrite(LED_PIN, HIGH);
+      delay(20);
+      digitalWrite(LED_PIN, LOW);
+    } 
+    else {
+      Serial.println(": BAD");
+      dump(&results);
+      mode = ERROR;
+    }
+  }
+}
+
+// Test raw send or receive.  This is similar to the test method,
+// except it send/receives raw data.
+void testRaw(const char *label, unsigned int *rawbuf, int rawlen) {
+  if (mode == SENDER) {
+    Serial.println(label);
+    irsend.sendRaw(rawbuf, rawlen, 38 /* kHz */);
+    delay(200);
+  } 
+  else if (mode == RECEIVER ) {
+    irrecv.resume(); // Receive the next value
+    unsigned long max_time = millis() + 30000;
+    Serial.print(label);
+
+    // Wait for decode or timeout
+    while (!irrecv.decode(&results)) {
+      if (millis() > max_time) {
+        Serial.println("Timeout receiving data");
+        mode = ERROR;
+        return;
+      }
+    }
+
+    // Received length has extra first element for gap
+    if (rawlen != results.rawlen - 1) {
+      Serial.print("Bad raw length ");
+      Serial.println(results.rawlen, DEC);
+      mode = ERROR;
+      return;
+    }
+    for (int i = 0; i < rawlen; i++) {
+      long got = results.rawbuf[i+1] * USECPERTICK;
+      // Adjust for extra duration of marks
+      if (i % 2 == 0) { 
+        got -= MARK_EXCESS;
+      } 
+      else {
+        got += MARK_EXCESS;
+      }
+      // See if close enough, within 25%
+      if (rawbuf[i] * 1.25 < got || got * 1.25 < rawbuf[i]) {
+        Serial.println(": BAD");
+        dump(&results);
+        mode = ERROR;
+        return;
+      }
+
+    }
+    Serial.println (": OK");
+    digitalWrite(LED_PIN, HIGH);
+    delay(20);
+    digitalWrite(LED_PIN, LOW);
+  }
+}   
+
+// This is the raw data corresponding to NEC 0x12345678
+unsigned int sendbuf[] = { /* NEC format */
+  9000, 4500,
+  560, 560, 560, 560, 560, 560, 560, 1690, /* 1 */
+  560, 560, 560, 560, 560, 1690, 560, 560, /* 2 */
+  560, 560, 560, 560, 560, 1690, 560, 1690, /* 3 */
+  560, 560, 560, 1690, 560, 560, 560, 560, /* 4 */
+  560, 560, 560, 1690, 560, 560, 560, 1690, /* 5 */
+  560, 560, 560, 1690, 560, 1690, 560, 560, /* 6 */
+  560, 560, 560, 1690, 560, 1690, 560, 1690, /* 7 */
+  560, 1690, 560, 560, 560, 560, 560, 560, /* 8 */
+  560};
+
+void loop() {
+  if (mode == SENDER) {
+    delay(2000);  // Delay for more than gap to give receiver a better chance to sync.
+  } 
+  else if (mode == RECEIVER) {
+    waitForGap(1000);
+  } 
+  else if (mode == ERROR) {
+    // Light up for 5 seconds for error
+    digitalWrite(LED_PIN, HIGH);
+    delay(5000);
+    digitalWrite(LED_PIN, LOW);
+    mode = RECEIVER;  // Try again
+    return;
+  }
+
+  // The test suite.
+  test("SONY1", SONY, 0x123, 12);
+  test("SONY2", SONY, 0x000, 12);
+  test("SONY3", SONY, 0xfff, 12);
+  test("SONY4", SONY, 0x12345, 20);
+  test("SONY5", SONY, 0x00000, 20);
+  test("SONY6", SONY, 0xfffff, 20);
+  test("NEC1", NEC, 0x12345678, 32);
+  test("NEC2", NEC, 0x00000000, 32);
+  test("NEC3", NEC, 0xffffffff, 32);
+  test("NEC4", NEC, REPEAT, 32);
+  test("RC51", RC5, 0x12345678, 32);
+  test("RC52", RC5, 0x0, 32);
+  test("RC53", RC5, 0xffffffff, 32);
+  test("RC61", RC6, 0x12345678, 32);
+  test("RC62", RC6, 0x0, 32);
+  test("RC63", RC6, 0xffffffff, 32);
+
+  // Tests of raw sending and receiving.
+  // First test sending raw and receiving raw.
+  // Then test sending raw and receiving decoded NEC
+  // Then test sending NEC and receiving raw
+  testRaw("RAW1", sendbuf, 67);
+  if (mode == SENDER) {
+    testRaw("RAW2", sendbuf, 67);
+    test("RAW3", NEC, 0x12345678, 32);
+  } 
+  else {
+    test("RAW2", NEC, 0x12345678, 32);
+    testRaw("RAW3", sendbuf, 67);
+  }
+}

lib/Arduino-IRremote/examples/JVCPanasonicSendDemo/JVCPanasonicSendDemo.ino

@@ -0,0 +1,29 @@
+/*
+ * IRremote: IRsendDemo - demonstrates sending IR codes with IRsend
+ * An IR LED must be connected to Arduino PWM pin 3.
+ * Version 0.1 July, 2009
+ * Copyright 2009 Ken Shirriff
+ * http://arcfn.com
+ * JVC and Panasonic protocol added by Kristian Lauszus (Thanks to zenwheel and other people at the original blog post)
+ */
+#include <IRremote.h>
+ 
+#define PanasonicAddress      0x4004     // Panasonic address (Pre data) 
+#define PanasonicPower        0x100BCBD  // Panasonic Power button
+
+#define JVCPower              0xC5E8
+
+IRsend irsend;
+
+void setup()
+{
+}
+
+void loop() {
+  irsend.sendPanasonic(PanasonicAddress,PanasonicPower); // This should turn your TV on and off
+  
+  irsend.sendJVC(JVCPower, 16,0); // hex value, 16 bits, no repeat
+  delayMicroseconds(50); // see http://www.sbprojects.com/knowledge/ir/jvc.php for information
+  irsend.sendJVC(JVCPower, 16,1); // hex value, 16 bits, repeat
+  delayMicroseconds(50);
+}

lib/Arduino-IRremote/examples/LGACSendDemo/LGACSendDemo.ino

@@ -0,0 +1,263 @@
+#include <IRremote.h>
+#include <Wire.h>
+
+
+IRsend irsend;
+// not used
+int RECV_PIN = 11;
+IRrecv irrecv (RECV_PIN);
+
+const int AC_TYPE  = 0;
+// 0 : TOWER
+// 1 : WALL
+//
+
+int AC_HEAT = 0;
+// 0 : cooling
+// 1 : heating
+
+int AC_POWER_ON    = 0;
+// 0 : off
+// 1 : on
+
+int AC_AIR_ACLEAN  = 0;
+// 0 : off
+// 1 : on --> power on
+
+int AC_TEMPERATURE = 27;
+// temperature : 18 ~ 30
+
+int AC_FLOW        = 1;
+// 0 : low
+// 1 : mid
+// 2 : high
+// if AC_TYPE =1, 3 : change
+//
+
+
+const int AC_FLOW_TOWER[3] = {0, 4, 6};
+const int AC_FLOW_WALL[4]  = {0, 2, 4, 5};
+
+unsigned long AC_CODE_TO_SEND;
+
+int r = LOW;
+int o_r = LOW;
+
+byte a, b;
+
+void ac_send_code(unsigned long code)
+{
+  Serial.print("code to send : ");
+  Serial.print(code, BIN);
+  Serial.print(" : ");
+  Serial.println(code, HEX);
+
+  irsend.sendLG(code, 28);
+}
+
+void ac_activate(int temperature, int air_flow)
+{
+
+  int AC_MSBITS1 = 8;
+  int AC_MSBITS2 = 8;
+  int AC_MSBITS3 = 0;
+  int AC_MSBITS4 ;
+  if ( AC_HEAT == 1 ) {
+    // heating
+    AC_MSBITS4 = 4;
+  } else {
+    // cooling
+    AC_MSBITS4 = 0;
+  }
+  int AC_MSBITS5 = temperature - 15;
+  int AC_MSBITS6 ;
+
+  if ( AC_TYPE == 0) {
+    AC_MSBITS6 = AC_FLOW_TOWER[air_flow];
+  } else {
+    AC_MSBITS6 = AC_FLOW_WALL[air_flow];
+  }
+
+  int AC_MSBITS7 = (AC_MSBITS3 + AC_MSBITS4 + AC_MSBITS5 + AC_MSBITS6) & B00001111;
+
+  AC_CODE_TO_SEND =  AC_MSBITS1 << 4 ;
+  AC_CODE_TO_SEND =  (AC_CODE_TO_SEND + AC_MSBITS2) << 4;
+  AC_CODE_TO_SEND =  (AC_CODE_TO_SEND + AC_MSBITS3) << 4;
+  AC_CODE_TO_SEND =  (AC_CODE_TO_SEND + AC_MSBITS4) << 4;
+  AC_CODE_TO_SEND =  (AC_CODE_TO_SEND + AC_MSBITS5) << 4;
+  AC_CODE_TO_SEND =  (AC_CODE_TO_SEND + AC_MSBITS6) << 4;
+  AC_CODE_TO_SEND =  (AC_CODE_TO_SEND + AC_MSBITS7);
+
+  ac_send_code(AC_CODE_TO_SEND);
+
+  AC_POWER_ON = 1;
+  AC_TEMPERATURE = temperature;
+  AC_FLOW = air_flow;
+}
+
+void ac_change_air_swing(int air_swing)
+{
+  if ( AC_TYPE == 0) {
+    if ( air_swing == 1) {
+      AC_CODE_TO_SEND = 0x881316B;
+    } else {
+      AC_CODE_TO_SEND = 0x881317C;
+    }
+  } else {
+    if ( air_swing == 1) {
+      AC_CODE_TO_SEND = 0x8813149;
+    } else {
+      AC_CODE_TO_SEND = 0x881315A;
+    }
+  }
+
+  ac_send_code(AC_CODE_TO_SEND);
+}
+
+void ac_power_down()
+{
+  AC_CODE_TO_SEND = 0x88C0051;
+
+  ac_send_code(AC_CODE_TO_SEND);
+
+  AC_POWER_ON = 0;
+}
+
+void ac_air_clean(int air_clean)
+{
+  if ( air_clean == 1) {
+    AC_CODE_TO_SEND = 0x88C000C;
+  } else {
+    AC_CODE_TO_SEND = 0x88C0084;
+  }
+
+  ac_send_code(AC_CODE_TO_SEND);
+
+  AC_AIR_ACLEAN = air_clean;
+}
+
+void setup()
+{
+  Serial.begin(38400);
+  delay(1000);
+  Wire.begin(7);
+  Wire.onReceive(receiveEvent);
+
+  Serial.println("  - - - T E S T - - -   ");
+
+  /* test
+    ac_activate(25, 1);
+    delay(5000);
+    ac_activate(27, 2);
+    delay(5000);
+
+  */
+}
+
+void loop()
+{
+
+
+  ac_activate(25, 1);
+  delay(5000);
+  ac_activate(27, 0);
+  delay(5000);
+
+
+  if ( r != o_r) {
+
+    /*
+    # a : mode or temp    b : air_flow, temp, swing, clean, cooling/heating
+    # 18 ~ 30 : temp      0 ~ 2 : flow // on
+    # 0 : off             0
+    # 1 : on              0
+    # 2 : air_swing       0 or 1
+    # 3 : air_clean       0 or 1
+    # 4 : air_flow        0 ~ 2 : flow
+    # 5 : temp            18 ~ 30
+    # + : temp + 1
+    # - : temp - 1
+    # m : change cooling to air clean, air clean to cooling
+    */
+    Serial.print("a : ");
+    Serial.print(a);
+    Serial.print("  b : ");
+    Serial.println(b);
+
+    switch (a) {
+      case 0: // off
+        ac_power_down();
+        break;
+      case 1: // on
+        ac_activate(AC_TEMPERATURE, AC_FLOW);
+        break;
+      case 2:
+        if ( b == 0 || b == 1 ) {
+          ac_change_air_swing(b);
+        }
+        break;
+      case 3: // 1  : clean on, power on
+        if ( b == 0 || b == 1 ) {
+          ac_air_clean(b);
+        }
+        break;
+      case 4:
+        if ( 0 <= b && b <= 2  ) {
+          ac_activate(AC_TEMPERATURE, b);
+        }
+        break;
+      case 5:
+        if (18 <= b && b <= 30  ) {
+          ac_activate(b, AC_FLOW);
+        }
+        break;
+      case '+':
+        if ( 18 <= AC_TEMPERATURE && AC_TEMPERATURE <= 29 ) {
+          ac_activate((AC_TEMPERATURE + 1), AC_FLOW);
+        }
+        break;
+      case '-':
+        if ( 19 <= AC_TEMPERATURE && AC_TEMPERATURE <= 30 ) {
+          ac_activate((AC_TEMPERATURE - 1), AC_FLOW);
+        }
+        break;
+      case 'm':
+        /*
+          if ac is on,  1) turn off, 2) turn on ac_air_clean(1)
+          if ac is off, 1) turn on,  2) turn off ac_air_clean(0)
+        */
+        if ( AC_POWER_ON == 1 ) {
+          ac_power_down();
+          delay(100);
+          ac_air_clean(1);
+        } else {
+          if ( AC_AIR_ACLEAN == 1) {
+            ac_air_clean(0);
+            delay(100);
+          }
+          ac_activate(AC_TEMPERATURE, AC_FLOW);
+        }
+        break;
+      default:
+        if ( 18 <= a && a <= 30 ) {
+          if ( 0 <= b && b <= 2 ) {
+            ac_activate(a, b);
+          }
+        }
+    }
+
+    o_r = r ;
+  }
+  delay(100);
+}
+
+
+
+void receiveEvent(int howMany)
+{
+  a = Wire.read();
+  b = Wire.read();
+  r = !r ;
+}
+
+

lib/Arduino-IRremote/examples/LGACSendDemo/LGACSendDemo.md

@@ -0,0 +1,93 @@
+=== decoding for LG A/C ====
+- 1) remote of LG AC has two type of HDR mark/space, 8000/4000 and 3100/10000 
+- 2) HDR 8000/4000 is decoded using decodeLG(IRrecvDumpV2) without problem
+- 3) for HDR 3100/10000, use AnalysIR's code : http://www.analysir.com/blog/2014/03/19/air-conditioners-problems-recording-long-infrared-remote-control-signals-arduino/
+- 4) for bin output based on AnalysIR's code : https://gist.github.com/chaeplin/a3a4b4b6b887c663bfe8
+- 5) remove first two byte(11)
+- 6) sample rawcode with bin output : https://gist.github.com/chaeplin/134d232e0b8cfb898860
+
+
+=== *** ===
+- 1) Sample raw code : https://gist.github.com/chaeplin/ab2a7ad1533c41260f0d
+- 2) send raw code : https://gist.github.com/chaeplin/7c800d3166463bb51be4
+
+
+=== *** ===
+- (0) : Cooling or Heating
+- (1) : fixed 
+- (2) : fixed
+- (3) : special(power, swing, air clean)
+- (4) : change air flow, temperature, cooling(0)/heating(4)
+- (5) : temperature ( 15 + (5) = )
+- (6) : air flow
+- (7) : crc ( 3 + 4 + 5 + 6 ) & B00001111
+
+
+°F = °C × 1.8 + 32
+°C = (°F − 32) / 1.8
+
+
+=== *** ===
+* remote / Korea / without heating
+
+|       status   |(0)| (1)| (2)| (3)| (4)| (5)| (6)| (7)
+|----------------|---|----|----|----|----|----|----|----
+| on / 25 / mid  | C |1000|1000|0000|0000|1010|0010|1100
+| on / 26 / mid  | C |1000|1000|0000|0000|1011|0010|1101      
+| on / 27 / mid  | C |1000|1000|0000|0000|1100|0010|1110     
+| on / 28 / mid  | C |1000|1000|0000|0000|1101|0010|1111     
+| on / 25 / high | C |1000|1000|0000|0000|1010|0100|1110     
+| on / 26 / high | C |1000|1000|0000|0000|1011|0100|1111     
+| on / 27 / high | C |1000|1000|0000|0000|1100|0100|0000     
+| on / 28 / high | C |1000|1000|0000|0000|1101|0100|0001
+|----------------|---|----|----|----|----|----|----|----    
+| 1 up           | C |1000|1000|0000|1000|1101|0100|1001 
+|----------------|---|----|----|----|----|----|----|----    
+| Cool power     | C |1000|1000|0001|0000|0000|1100|1101     
+| energy saving  | C |1000|1000|0001|0000|0000|0100|0101     
+| power          | C |1000|1000|0001|0000|0000|1000|1001            
+| flow/up/down   | C |1000|1000|0001|0011|0001|0100|1001     
+| up/down off    | C |1000|1000|0001|0011|0001|0101|1010     
+| flow/left/right| C |1000|1000|0001|0011|0001|0110|1011     
+| left/right off | C |1000|1000|0001|0011|0001|0111|1100 
+|----------------|---|----|----|----|----|----|----|----    
+| Air clean      | C |1000|1000|1100|0000|0000|0000|1100
+|----------------|---|----|----|----|----|----|----|----    
+| off            | C |1000|1000|1100|0000|0000|0101|0001 
+
+
+
+* remote / with heating 
+* converted using raw code at https://github.com/chaeplin/RaspAC/blob/master/lircd.conf 
+
+|       status   |(0)| (1)| (2)| (3)| (4)| (5)| (6)| (7)
+|----------------|---|----|----|----|----|----|----|----
+| on             | C |1000|1000|0000|0000|1011|0010|1101
+|----------------|---|----|----|----|----|----|----|----
+| off            | C |1000|1000|1100|0000|0000|0101|0001
+|----------------|---|----|----|----|----|----|----|----
+| 64  / 18       | C |1000|1000|0000|0000|0011|0100|0111
+| 66  / 19       | C |1000|1000|0000|0000|0100|0100|1000
+| 68  / 20       | C |1000|1000|0000|0000|0101|0100|1001
+| 70  / 21       | C |1000|1000|0000|0000|0110|0100|1010
+| 72  / 22       | C |1000|1000|0000|0000|0111|0100|1011
+| 74  / 23       | C |1000|1000|0000|0000|1000|0100|1100
+| 76  / 25       | C |1000|1000|0000|0000|1010|0100|1110
+| 78  / 26       | C |1000|1000|0000|0000|1011|0100|1111
+| 80  / 27       | C |1000|1000|0000|0000|1100|0100|0000
+| 82  / 28       | C |1000|1000|0000|0000|1101|0100|0001
+| 84  / 29       | C |1000|1000|0000|0000|1110|0100|0010
+| 86  / 30       | C |1000|1000|0000|0000|1111|0100|0011
+|----------------|---|----|----|----|----|----|----|----
+| heat64         | H |1000|1000|0000|0100|0011|0100|1011
+| heat66         | H |1000|1000|0000|0100|0100|0100|1100
+| heat68         | H |1000|1000|0000|0100|0101|0100|1101
+| heat70         | H |1000|1000|0000|0100|0110|0100|1110
+| heat72         | H |1000|1000|0000|0100|0111|0100|1111
+| heat74         | H |1000|1000|0000|0100|1000|0100|0000
+| heat76         | H |1000|1000|0000|0100|1001|0100|0001
+| heat78         | H |1000|1000|0000|0100|1011|0100|0011
+| heat80         | H |1000|1000|0000|0100|1100|0100|0100
+| heat82         | H |1000|1000|0000|0100|1101|0100|0101
+| heat84         | H |1000|1000|0000|0100|1110|0100|0110
+| heat86         | H |1000|1000|0000|0100|1111|0100|0111

lib/Arduino-IRremote/examples/LegoPowerFunctionsSendDemo/LegoPowerFunctionsSendDemo.ino

@@ -0,0 +1,22 @@
+/*
+ * LegoPowerFunctionsSendDemo: LEGO Power Functions
+ * Copyright (c) 2016 Philipp Henkel
+ */
+
+#include <IRremote.h>
+#include <IRremoteInt.h>
+
+IRsend irsend;
+
+void setup() {
+}
+
+void loop() {
+  // Send repeated command "channel 1, blue forward, red backward"
+  irsend.sendLegoPowerFunctions(0x197);
+  delay(2000);
+
+  // Send single command "channel 1, blue forward, red backward"
+  irsend.sendLegoPowerFunctions(0x197, false);
+  delay(2000);
+}

lib/Arduino-IRremote/examples/LegoPowerFunctionsTests/LegoPowerFunctionsTests.ino

@@ -0,0 +1,193 @@
+/*
+ * LegoPowerFunctionsTest: LEGO Power Functions Tests
+ * Copyright (c) 2016, 2017 Philipp Henkel
+ */
+
+#include <ir_Lego_PF_BitStreamEncoder.h>
+
+void setup() {
+  Serial.begin(9600);
+  delay(1000); // wait for reset triggered by serial connection
+  runBitStreamEncoderTests();
+}
+
+void loop() {
+}
+
+void runBitStreamEncoderTests() {
+  Serial.println();
+  Serial.println("BitStreamEncoder Tests");
+  static LegoPfBitStreamEncoder bitStreamEncoder;
+  testStartBit(bitStreamEncoder);
+  testLowBit(bitStreamEncoder);
+  testHighBit(bitStreamEncoder);
+  testMessageBitCount(bitStreamEncoder);
+  testMessageBitCountRepeat(bitStreamEncoder);
+  testMessage407(bitStreamEncoder);
+  testMessage407Repeated(bitStreamEncoder);
+  testGetChannelId1(bitStreamEncoder);
+  testGetChannelId2(bitStreamEncoder);
+  testGetChannelId3(bitStreamEncoder);
+  testGetChannelId4(bitStreamEncoder);
+  testGetMessageLengthAllHigh(bitStreamEncoder);
+  testGetMessageLengthAllLow(bitStreamEncoder);
+}
+
+void logTestResult(bool testPassed) {
+  if (testPassed) {
+    Serial.println("OK");
+  }
+  else {
+    Serial.println("FAIL  ############");
+  }
+}
+
+void testStartBit(LegoPfBitStreamEncoder& bitStreamEncoder) {
+  Serial.print("  testStartBit                    ");
+  bitStreamEncoder.reset(0, false);
+  int startMark = bitStreamEncoder.getMarkDuration();
+  int startPause = bitStreamEncoder.getPauseDuration();
+  logTestResult(startMark == 158 && startPause == 1184-158);
+}
+
+void testLowBit(LegoPfBitStreamEncoder& bitStreamEncoder) {
+  Serial.print("  testLowBit                      ");
+  bitStreamEncoder.reset(0, false);
+  bitStreamEncoder.next();
+  int lowMark = bitStreamEncoder.getMarkDuration();
+  int lowPause = bitStreamEncoder.getPauseDuration();
+  logTestResult(lowMark == 158 && lowPause == 421-158);
+}
+
+void testHighBit(LegoPfBitStreamEncoder& bitStreamEncoder) {
+  Serial.print("  testHighBit                     ");
+  bitStreamEncoder.reset(0xFFFF, false);
+  bitStreamEncoder.next();
+  int highMark = bitStreamEncoder.getMarkDuration();
+  int highPause = bitStreamEncoder.getPauseDuration();
+  logTestResult(highMark == 158 && highPause == 711-158);
+}
+
+void testMessageBitCount(LegoPfBitStreamEncoder& bitStreamEncoder) {
+  Serial.print("  testMessageBitCount             ");
+  bitStreamEncoder.reset(0xFFFF, false);
+  int bitCount = 1;
+  while (bitStreamEncoder.next()) {
+    bitCount++;
+  }
+  logTestResult(bitCount == 18);
+}
+
+boolean check(LegoPfBitStreamEncoder& bitStreamEncoder, unsigned long markDuration, unsigned long pauseDuration) {
+  bool result = true;
+  result = result && bitStreamEncoder.getMarkDuration() == markDuration;
+  result = result && bitStreamEncoder.getPauseDuration() == pauseDuration;
+  return result;
+}
+
+boolean checkNext(LegoPfBitStreamEncoder& bitStreamEncoder, unsigned long markDuration, unsigned long pauseDuration) {
+  bool result = bitStreamEncoder.next();
+  result = result && check(bitStreamEncoder, markDuration, pauseDuration);
+  return result;
+}
+
+boolean checkDataBitsOfMessage407(LegoPfBitStreamEncoder& bitStreamEncoder) {
+  bool result = true;
+  result = result && checkNext(bitStreamEncoder, 158, 263);
+  result = result && checkNext(bitStreamEncoder, 158, 263);
+  result = result && checkNext(bitStreamEncoder, 158, 263);
+  result = result && checkNext(bitStreamEncoder, 158, 263);
+  result = result && checkNext(bitStreamEncoder, 158, 263);
+  result = result && checkNext(bitStreamEncoder, 158, 263);
+  result = result && checkNext(bitStreamEncoder, 158, 263);
+  result = result && checkNext(bitStreamEncoder, 158, 553);
+  result = result && checkNext(bitStreamEncoder, 158, 553);
+  result = result && checkNext(bitStreamEncoder, 158, 263);
+  result = result && checkNext(bitStreamEncoder, 158, 263);
+  result = result && checkNext(bitStreamEncoder, 158, 553);
+  result = result && checkNext(bitStreamEncoder, 158, 263);
+  result = result && checkNext(bitStreamEncoder, 158, 553);
+  result = result && checkNext(bitStreamEncoder, 158, 553);
+  result = result && checkNext(bitStreamEncoder, 158, 553);
+  return result;
+}
+
+void testMessage407(LegoPfBitStreamEncoder& bitStreamEncoder) {
+  Serial.print("  testMessage407                  ");
+  bitStreamEncoder.reset(407, false);
+  bool result = true;
+  result = result && check(bitStreamEncoder, 158, 1026);
+  result = result && checkDataBitsOfMessage407(bitStreamEncoder);
+  result = result && checkNext(bitStreamEncoder, 158, 1026);
+  result = result && !bitStreamEncoder.next();
+  logTestResult(result);
+}
+
+void testMessage407Repeated(LegoPfBitStreamEncoder& bitStreamEncoder) {
+  Serial.print("  testMessage407Repeated          ");
+  bitStreamEncoder.reset(407, true);
+  bool result = true;
+  result = result && check(bitStreamEncoder, 158, 1026);
+  result = result && checkDataBitsOfMessage407(bitStreamEncoder);
+  result = result && checkNext(bitStreamEncoder, 158, 1026L + 5L * 16000L - 10844L);
+  result = result && checkNext(bitStreamEncoder, 158, 1026);
+  result = result && checkDataBitsOfMessage407(bitStreamEncoder);
+  result = result && checkNext(bitStreamEncoder, 158, 1026L + 5L * 16000L - 10844L);
+  result = result && checkNext(bitStreamEncoder, 158, 1026);
+  result = result && checkDataBitsOfMessage407(bitStreamEncoder);
+  result = result && checkNext(bitStreamEncoder, 158, 1026L + 8L * 16000L - 10844L);
+  result = result && checkNext(bitStreamEncoder, 158, 1026);
+  result = result && checkDataBitsOfMessage407(bitStreamEncoder);
+  result = result && checkNext(bitStreamEncoder, 158, 1026L + 8L * 16000L - 10844L);
+  result = result && checkNext(bitStreamEncoder, 158, 1026);
+  result = result && checkDataBitsOfMessage407(bitStreamEncoder);
+  result = result && checkNext(bitStreamEncoder, 158, 1026);
+  result = result && !bitStreamEncoder.next();
+  logTestResult(result);
+}
+
+void testMessageBitCountRepeat(LegoPfBitStreamEncoder& bitStreamEncoder) {
+  Serial.print("  testMessageBitCountRepeat       ");
+  bitStreamEncoder.reset(0xFFFF, true);
+  int bitCount = 1;
+  while (bitStreamEncoder.next()) {
+    bitCount++;
+  }
+  logTestResult(bitCount == 5*18);
+}
+
+void testGetChannelId1(LegoPfBitStreamEncoder& bitStreamEncoder) {
+  Serial.print("  testGetChannelId1               ");
+  bitStreamEncoder.reset(407, false);
+  logTestResult(bitStreamEncoder.getChannelId() == 1);
+}
+
+void testGetChannelId2(LegoPfBitStreamEncoder& bitStreamEncoder) {
+  Serial.print("  testGetChannelId2               ");
+  bitStreamEncoder.reset(4502, false);
+  logTestResult(bitStreamEncoder.getChannelId() == 2);
+}
+
+void testGetChannelId3(LegoPfBitStreamEncoder& bitStreamEncoder) {
+  Serial.print("  testGetChannelId3               ");
+  bitStreamEncoder.reset(8597, false);
+  logTestResult(bitStreamEncoder.getChannelId() == 3);
+}
+
+void testGetChannelId4(LegoPfBitStreamEncoder& bitStreamEncoder) {
+  Serial.print("  testGetChannelId4               ");
+  bitStreamEncoder.reset(12692, false);
+  logTestResult(bitStreamEncoder.getChannelId() == 4);
+}
+
+void testGetMessageLengthAllHigh(LegoPfBitStreamEncoder& bitStreamEncoder) {
+  Serial.print("  testGetMessageLengthAllHigh     ");
+  bitStreamEncoder.reset(0xFFFF, false);
+  logTestResult(bitStreamEncoder.getMessageLength() == 13744);
+}
+
+void testGetMessageLengthAllLow(LegoPfBitStreamEncoder& bitStreamEncoder) {
+  Serial.print("  testGetMessageLengthAllLow      ");
+  bitStreamEncoder.reset(0x0, false);
+  logTestResult(bitStreamEncoder.getMessageLength() == 9104);
+}

lib/Arduino-IRremote/irPronto.cpp

@@ -0,0 +1,513 @@
+#define TEST 0
+
+#if TEST
+#	define SEND_PRONTO        1
+#	define PRONTO_ONCE        false
+#	define PRONTO_REPEAT      true
+#	define PRONTO_FALLBACK    true
+#	define PRONTO_NOFALLBACK  false
+#endif
+
+#if SEND_PRONTO
+
+//******************************************************************************
+#if TEST
+#	include <stdio.h>
+	void  enableIROut (int freq)  { printf("\nFreq = %d KHz\n", freq); }
+	void  mark        (int t)     { printf("+%d," , t); }
+	void  space       (int t)     { printf("-%d, ", t); }
+#else
+#	include "IRremote.h"
+#endif // TEST
+
+//+=============================================================================
+// Check for a valid hex digit
+//
+bool  ishex (char ch)
+{
+	return ( ((ch >= '0') && (ch <= '9')) ||
+             ((ch >= 'A') && (ch <= 'F')) ||
+             ((ch >= 'a') && (ch <= 'f'))   ) ? true : false ;
+}
+
+//+=============================================================================
+// Check for a valid "blank" ... '\0' is a valid "blank"
+//
+bool  isblank (char ch)
+{
+	return ((ch == ' ') || (ch == '\t') || (ch == '\0')) ? true : false ;
+}
+
+//+=============================================================================
+// Bypass spaces
+//
+bool  byp (char** pcp)
+{
+	while (isblank(**pcp))  (*pcp)++ ;
+}
+
+//+=============================================================================
+// Hex-to-Byte : Decode a hex digit
+// We assume the character has already been validated
+//
+uint8_t  htob (char ch)
+{
+	if ((ch >= '0') && (ch <= '9'))  return ch - '0' ;
+	if ((ch >= 'A') && (ch <= 'F'))  return ch - 'A' + 10 ;
+	if ((ch >= 'a') && (ch <= 'f'))  return ch - 'a' + 10 ;
+}
+
+//+=============================================================================
+// Hex-to-Word : Decode a block of 4 hex digits
+// We assume the string has already been validated
+//   and the pointer being passed points at the start of a block of 4 hex digits
+//
+uint16_t  htow (char* cp)
+{
+	return ( (htob(cp[0]) << 12) | (htob(cp[1]) <<  8) |
+             (htob(cp[2]) <<  4) | (htob(cp[3])      )  ) ;
+}
+
+//+=============================================================================
+//
+bool sendPronto (char* s,  bool repeat,  bool fallback)
+{
+	int       i;
+	int       len;
+	int       skip;
+	char*     cp;
+	uint16_t  freq;  // Frequency in KHz
+	uint8_t   usec;  // pronto uSec/tick
+	uint8_t   once;
+	uint8_t   rpt;
+
+	// Validate the string
+	for (cp = s;  *cp;  cp += 4) {
+		byp(&cp);
+		if ( !ishex(cp[0]) || !ishex(cp[1]) ||
+		     !ishex(cp[2]) || !ishex(cp[3]) || !isblank(cp[4]) )  return false ;
+	}
+
+	// We will use cp to traverse the string
+	cp = s;
+
+	// Check mode = Oscillated/Learned
+	byp(&cp);
+	if (htow(cp) != 0000)  return false;
+	cp += 4;
+
+	// Extract & set frequency
+	byp(&cp);
+	freq = (int)(1000000 / (htow(cp) * 0.241246));  // Rounding errors will occur, tolerance is +/- 10%
+	usec = (int)(((1.0 / freq) * 1000000) + 0.5);  // Another rounding error, thank Cod for analogue electronics
+	freq /= 1000;  // This will introduce a(nother) rounding error which we do not want in the usec calcualtion
+	cp += 4;
+
+	// Get length of "once" code
+	byp(&cp);
+	once = htow(cp);
+	cp += 4;
+
+	// Get length of "repeat" code
+	byp(&cp);
+	rpt = htow(cp);
+	cp += 4;
+
+	// Which code are we sending?
+	if (fallback) { // fallback on the "other" code if "this" code is not present
+		if (!repeat) { // requested 'once'
+			if (once)  len = once * 2,  skip = 0 ;  // if once exists send it
+			else       len = rpt  * 2,  skip = 0 ;  // else send repeat code
+		} else { // requested 'repeat'
+			if (rpt)   len = rpt  * 2,  skip = 0 ;  // if rpt exists send it
+			else       len = once * 2,  skip = 0 ;  // else send once code
+		}
+	} else {  // Send what we asked for, do not fallback if the code is empty!
+		if (!repeat)  len = once * 2,  skip = 0 ;     // 'once' starts at 0
+		else          len = rpt  * 2,  skip = once ;  // 'repeat' starts where 'once' ends
+    }
+
+	// Skip to start of code
+	for (i = 0;  i < skip;  i++, cp += 4)  byp(&cp) ;
+
+	// Send code
+	enableIROut(freq);
+	for (i = 0;  i < len;  i++) {
+		byp(&cp);
+		if (i & 1)  space(htow(cp) * usec);
+		else        mark (htow(cp) * usec);
+		cp += 4;
+	}
+}
+
+//+=============================================================================
+#if TEST
+
+int  main ( )
+{
+	char  prontoTest[] =
+		"0000 0070 0000 0032 0080 0040 0010 0010 0010 0030 " //  10
+		"0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 " //  20
+		"0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 " //  30
+		"0010 0010 0010 0030 0010 0010 0010 0010 0010 0010 " //  40
+		"0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 " //  50
+		"0010 0010 0010 0030 0010 0010 0010 0010 0010 0010 " //  60
+		"0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 " //  70
+		"0010 0010 0010 0030 0010 0010 0010 0030 0010 0010 " //  80
+		"0010 0010 0010 0030 0010 0010 0010 0010 0010 0030 " //  90
+		"0010 0010 0010 0030 0010 0010 0010 0010 0010 0030 " // 100
+		"0010 0030 0010 0aa6";                               // 104
+
+	sendPronto(prontoTest, PRONTO_ONCE,   PRONTO_FALLBACK);    // once code
+	sendPronto(prontoTest, PRONTO_REPEAT, PRONTO_FALLBACK);    // repeat code
+	sendPronto(prontoTest, PRONTO_ONCE,   PRONTO_NOFALLBACK);  // once code
+	sendPronto(prontoTest, PRONTO_REPEAT, PRONTO_NOFALLBACK);  // repeat code
+
+	return 0;
+}
+
+#endif // TEST
+
+#endif // SEND_PRONTO
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+#if 0
+//******************************************************************************
+// Sources:
+//   http://www.remotecentral.com/features/irdisp2.htm
+//   http://www.hifi-remote.com/wiki/index.php?title=Working_With_Pronto_Hex
+//******************************************************************************
+
+#include <stdint.h>
+#include <stdio.h>
+
+#define IRPRONTO
+#include "IRremoteInt.h"  // The Arduino IRremote library defines USECPERTICK
+
+//------------------------------------------------------------------------------
+// Source: https://www.google.co.uk/search?q=DENON+MASTER+IR+Hex+Command+Sheet
+//         -> http://assets.denon.com/documentmaster/us/denon%20master%20ir%20hex.xls
+//
+char  prontoTest[] =
+	"0000 0070 0000 0032 0080 0040 0010 0010 0010 0030 " //  10
+	"0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 " //  20
+	"0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 " //  30
+	"0010 0010 0010 0030 0010 0010 0010 0010 0010 0010 " //  40
+	"0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 " //  50
+	"0010 0010 0010 0030 0010 0010 0010 0010 0010 0010 " //  60
+	"0010 0010 0010 0010 0010 0010 0010 0010 0010 0010 " //  70
+	"0010 0010 0010 0030 0010 0010 0010 0030 0010 0010 " //  80
+	"0010 0010 0010 0030 0010 0010 0010 0010 0010 0030 " //  90
+	"0010 0010 0010 0030 0010 0010 0010 0010 0010 0030 " // 100
+	"0010 0030 0010 0aa6";                               // 104
+
+//------------------------------------------------------------------------------
+// This is the longest code we can support
+#define CODEMAX  200
+
+//------------------------------------------------------------------------------
+// This is the data we pull out of the pronto code
+typedef
+	struct {
+		int        freq;           // Carrier frequency (in Hz)
+		int        usec;           // uSec per tick (based on freq)
+
+		int        codeLen;        // Length of code
+		uint16_t   code[CODEMAX];  // Code in hex
+
+		int        onceLen;        // Length of "once" transmit
+		uint16_t*  once;           // Pointer to start within 'code'
+
+		int        rptLen;         // Length of "repeat" transmit
+		uint16_t*  rpt;            // Pointer to start within 'code'
+	}
+pronto_t;
+
+//------------------------------------------------------------------------------
+// From what I have seen, the only time we go over 8-bits is the 'space'
+// on the end which creates the lead-out/inter-code gap.  Assuming I'm right,
+// we can code this up as a special case and otherwise halve the size of our
+// data!
+// Ignoring the first four values (the config data) and the last value
+// (the lead-out), if you find a protocol that uses values greater than 00fe
+// we are going to have to revisit this code!
+//
+//
+// So, the 0th byte will be the carrier frequency in Khz (NOT Hz)
+//      "  1st  "    "   "   "  length of the "once" code
+//      "  2nd  "    "   "   "  length of the "repeat" code
+//
+// Thereafter, odd  bytes will be Mark  lengths as a multiple of USECPERTICK uS
+//             even   "     "  "  Space    "    "  "    "     "       "      "
+//
+// Any occurence of "FF" in either a Mark or a Space will indicate
+//   "Use the 16-bit FF value" which will also be a multiple of USECPERTICK uS
+//
+//
+// As a point of comparison, the test code (prontoTest[]) is 520 bytes
+// (yes, more than 0.5KB of our Arduino's precious 32KB) ... after conversion
+// to pronto hex that goes down to ((520/5)*2) = 208 bytes ... once converted to
+// our format we are down to ((208/2) -1 -1 +2) = 104 bytes
+//
+// In fariness this is still very memory-hungry
+// ...As a rough guide:
+//   10 codes cost 1K of memory (this will vary depending on the protocol).
+//
+// So if you're building a complex remote control, you will probably need to
+// keep the codes on an external memory device (not in the Arduino sketch) and
+// load them as you need them.  Hmmm.
+//
+// This dictates that "Oscillated Pronto Codes" are probably NOT the way forward
+//
+// For example, prontoTest[] happens to be: A 48-bit IR code in Denon format
+// So we know it starts with 80/40                           (Denon header)
+//             and ends with 10/aa6                          (Denon leadout)
+//             and all (48) bits in between are either 10/10 (Denon 0)
+//                                                  or 10/30 (Denon 1)
+// So we could easily store this data in 1-byte  ("Denon")
+//                                     + 1-byte  (Length=48)
+//                                     + 6-bytes (IR code)
+// At 8-bytes per code, we can store 128 codes in 1KB or memory - that's a lot
+// better than the 2 (two) we started off with!
+//
+// And serendipitously, by reducing the amount of data, our program will run
+// a LOT faster!
+//
+// Again, I repeat, even after you have spent time converting the "Oscillated
+// Pronto Codes" in to IRremote format, it will be a LOT more memory-hungry
+// than using sendDenon() (or whichever) ...BUT these codes are easily
+// available on the internet, so we'll support them!
+//
+typedef
+	struct {
+		uint16_t   FF;
+		uint8_t    code[CODEMAX];
+	}
+irCode_t;
+
+//------------------------------------------------------------------------------
+#define DEBUGF(...)  printf(__VA_ARGS__)
+
+//+=============================================================================
+// String must be block of 4 hex digits separated with blanks
+//
+bool  validate (char* cp,  int* len)
+{
+	for (*len = 0;  *cp;  (*len)++, cp += 4) {
+		byp(&cp);
+		if ( !ishex(cp[0]) || !ishex(cp[1]) ||
+		     !ishex(cp[2]) || !ishex(cp[3]) || !isblank(cp[4]) )  return false ;
+	}
+
+	return true;
+}
+
+//+=============================================================================
+// Hex-to-Byte : Decode a hex digit
+// We assume the character has already been validated
+//
+uint8_t  htob (char ch)
+{
+	if ((ch >= '0') && (ch <= '9'))  return ch - '0' ;
+	if ((ch >= 'A') && (ch <= 'F'))  return ch - 'A' + 10 ;
+	if ((ch >= 'a') && (ch <= 'f'))  return ch - 'a' + 10 ;
+}
+
+//+=============================================================================
+// Hex-to-Word : Decode a block of 4 hex digits
+// We assume the string has already been validated
+//   and the pointer being passed points at the start of a block of 4 hex digits
+//
+uint16_t  htow (char* cp)
+{
+	return ( (htob(cp[0]) << 12) | (htob(cp[1]) <<  8) |
+             (htob(cp[2]) <<  4) | (htob(cp[3])      )  ) ;
+}
+
+//+=============================================================================
+// Convert the pronto string in to data
+//
+bool  decode (char* s,  pronto_t* p,  irCode_t* ir)
+{
+	int    i, len;
+	char*  cp;
+
+	// Validate the Pronto string
+	if (!validate(s, &p->codeLen)) {
+		DEBUGF("Invalid pronto string\n");
+		return false ;
+    }
+	DEBUGF("Found %d hex codes\n", p->codeLen);
+
+	// Allocate memory to store the decoded string
+	//if (!(p->code = malloc(p->len))) {
+	//	DEBUGF("Memory allocation failed\n");
+	//	return false ;
+	//}
+
+	// Check in case our code is too long
+	if (p->codeLen > CODEMAX) {
+		DEBUGF("Code too long, edit CODEMAX and recompile\n");
+		return false ;
+	}
+
+	// Decode the string
+	cp = s;
+	for (i = 0;  i < p->codeLen;  i++, cp += 4) {
+		byp(&cp);
+		p->code[i] = htow(cp);
+	}
+
+	// Announce our findings
+	DEBUGF("Input: |%s|\n", s);
+	DEBUGF("Found: |");
+    for (i = 0;  i < p->codeLen;  i++)  DEBUGF("%04x ", p->code[i]) ;
+	DEBUGF("|\n");
+
+	DEBUGF("Form [%04X] : ", p->code[0]);
+	if      (p->code[0] == 0x0000)  DEBUGF("Oscillated (Learned)\n");
+	else if (p->code[0] == 0x0100)  DEBUGF("Unmodulated\n");
+	else                            DEBUGF("Unknown\n");
+    if (p->code[0] != 0x0000)  return false ;  // Can only handle Oscillated
+
+	// Calculate the carrier frequency (+/- 10%) & uSecs per pulse
+	// Pronto uses a crystal which generates a timeabse of 0.241246
+	p->freq     = (int)(1000000 / (p->code[1] * 0.241246));
+	p->usec     = (int)(((1.0 / p->freq) * 1000000) + 0.5);
+	ir->code[0] = p->freq / 1000;
+    DEBUGF("Freq [%04X] : %d Hz  (%d uS/pluse) -> %d KHz\n",
+	       p->code[1], p->freq, p->usec, ir->code[0]);
+
+	// Set the length & start pointer for the "once" code
+	p->onceLen  = p->code[2];
+	p->once     = &p->code[4];
+	ir->code[1] = p->onceLen;
+	DEBUGF("Once [%04X] : %d\n", p->code[2], p->onceLen);
+
+	// Set the length & start pointer for the "repeat" code
+	p->rptLen = p->code[3];
+	p->rpt    = &p->code[4 + p->onceLen];
+	ir->code[2] = p->rptLen;
+	DEBUGF("Rpt  [%04X] : %d\n", p->code[3], p->rptLen);
+
+	// Check everything tallies
+	if (1 + 1 + 1 + 1 + (p->onceLen * 2) + (p->rptLen * 2) != p->codeLen) {
+		DEBUGF("Bad code length\n");
+		return false;
+	}
+
+	// Convert the IR data to our new format
+	ir->FF = p->code[p->codeLen - 1];
+
+	len = (p->onceLen * 2) + (p->rptLen * 2);
+	DEBUGF("Encoded: |");
+	for (i = 0;  i < len;  i++) {
+		if (p->code[i+4] == ir->FF) {
+			ir->code[i+3] = 0xFF;
+		} else if (p->code[i+4] > 0xFE) {
+			DEBUGF("\n%04X : Mark/Space overflow\n", p->code[i+4]);
+			return false;
+		} else {
+			ir->code[i+3] = (p->code[i+4] * p->usec) / USECPERTICK;
+		}
+		DEBUGF("%s%d", !i ? "" : (i&1 ? "," : ", "), ir->code[i+3]);
+	}
+	DEBUGF("|\n");
+
+	ir->FF = (ir->FF * p->usec) / USECPERTICK;
+	DEBUGF("FF -> %d\n", ir->FF);
+
+	return true;
+}
+
+//+=============================================================================
+//
+void  irDump (irCode_t* ir)
+{
+	int  i, len;
+
+	printf("uint8_t  buttonName[%d] = {", len);
+
+	printf("%d,%d, ", (ir->FF >> 8), ir->FF & 0xFF);
+	printf("%d,%d,%d, ", ir->code[0], ir->code[1], ir->code[2]);
+
+	len = (ir->code[1] * 2) + (ir->code[2] * 2);
+	for (i = 0;  i < len;  i++) {
+		printf("%s%d", !i ? "" : (i&1 ? "," : ", "), ir->code[i+3]);
+	}
+
+	printf("};\n");
+
+}
+
+//+=============================================================================
+//
+int  main ( )
+{
+	pronto_t  pCode;
+	irCode_t  irCode;
+
+	decode(prontoTest, &pCode, &irCode);
+
+	irDump(&irCode);
+
+	return 0;
+}
+
+#endif //0

lib/Arduino-IRremote/irRecv.cpp

@@ -0,0 +1,235 @@
+#include "IRremote.h"
+#include "IRremoteInt.h"
+
+#ifdef IR_TIMER_USE_ESP32
+hw_timer_t *timer;
+void IRTimer(); // defined in IRremote.cpp
+#endif
+
+//+=============================================================================
+// Decodes the received IR message
+// Returns 0 if no data ready, 1 if data ready.
+// Results of decoding are stored in results
+//
+int  IRrecv::decode (decode_results *results)
+{
+	results->rawbuf   = irparams.rawbuf;
+	results->rawlen   = irparams.rawlen;
+
+	results->overflow = irparams.overflow;
+
+	if (irparams.rcvstate != STATE_STOP)  return false ;
+
+#if DECODE_NEC
+	DBG_PRINTLN("Attempting NEC decode");
+	if (decodeNEC(results))  return true ;
+#endif
+
+#if DECODE_SONY
+	DBG_PRINTLN("Attempting Sony decode");
+	if (decodeSony(results))  return true ;
+#endif
+
+#if DECODE_SANYO
+	DBG_PRINTLN("Attempting Sanyo decode");
+	if (decodeSanyo(results))  return true ;
+#endif
+
+#if DECODE_MITSUBISHI
+	DBG_PRINTLN("Attempting Mitsubishi decode");
+	if (decodeMitsubishi(results))  return true ;
+#endif
+
+#if DECODE_RC5
+	DBG_PRINTLN("Attempting RC5 decode");
+	if (decodeRC5(results))  return true ;
+#endif
+
+#if DECODE_RC6
+	DBG_PRINTLN("Attempting RC6 decode");
+	if (decodeRC6(results))  return true ;
+#endif
+
+#if DECODE_PANASONIC
+	DBG_PRINTLN("Attempting Panasonic decode");
+	if (decodePanasonic(results))  return true ;
+#endif
+
+#if DECODE_LG
+	DBG_PRINTLN("Attempting LG decode");
+	if (decodeLG(results))  return true ;
+#endif
+
+#if DECODE_JVC
+	DBG_PRINTLN("Attempting JVC decode");
+	if (decodeJVC(results))  return true ;
+#endif
+
+#if DECODE_SAMSUNG
+	DBG_PRINTLN("Attempting SAMSUNG decode");
+	if (decodeSAMSUNG(results))  return true ;
+#endif
+
+#if DECODE_WHYNTER
+	DBG_PRINTLN("Attempting Whynter decode");
+	if (decodeWhynter(results))  return true ;
+#endif
+
+#if DECODE_AIWA_RC_T501
+	DBG_PRINTLN("Attempting Aiwa RC-T501 decode");
+	if (decodeAiwaRCT501(results))  return true ;
+#endif
+
+#if DECODE_DENON
+	DBG_PRINTLN("Attempting Denon decode");
+	if (decodeDenon(results))  return true ;
+#endif
+
+#if DECODE_LEGO_PF
+	DBG_PRINTLN("Attempting Lego Power Functions");
+	if (decodeLegoPowerFunctions(results))  return true ;
+#endif
+
+	// decodeHash returns a hash on any input.
+	// Thus, it needs to be last in the list.
+	// If you add any decodes, add them before this.
+	if (decodeHash(results))  return true ;
+
+	// Throw away and start over
+	resume();
+	return false;
+}
+
+//+=============================================================================
+IRrecv::IRrecv (int recvpin)
+{
+	irparams.recvpin = recvpin;
+	irparams.blinkflag = 0;
+}
+
+IRrecv::IRrecv (int recvpin, int blinkpin)
+{
+	irparams.recvpin = recvpin;
+	irparams.blinkpin = blinkpin;
+	pinMode(blinkpin, OUTPUT);
+	irparams.blinkflag = 0;
+}
+
+
+
+//+=============================================================================
+// initialization
+//
+void  IRrecv::enableIRIn ( )
+{
+// Interrupt Service Routine - Fires every 50uS
+#ifdef ESP32
+	// ESP32 has a proper API to setup timers, no weird chip macros needed
+	// simply call the readable API versions :)
+	// 3 timers, choose #1, 80 divider nanosecond precision, 1 to count up
+	timer = timerBegin(1, 80, 1);
+	timerAttachInterrupt(timer, &IRTimer, 1);
+	// every 50ns, autoreload = true
+	timerAlarmWrite(timer, 50, true);
+	timerAlarmEnable(timer);
+#else
+	cli();
+	// Setup pulse clock timer interrupt
+	// Prescale /8 (16M/8 = 0.5 microseconds per tick)
+	// Therefore, the timer interval can range from 0.5 to 128 microseconds
+	// Depending on the reset value (255 to 0)
+	TIMER_CONFIG_NORMAL();
+
+	// Timer2 Overflow Interrupt Enable
+	TIMER_ENABLE_INTR;
+
+	TIMER_RESET;
+
+	sei();  // enable interrupts
+#endif
+
+	// Initialize state machine variables
+	irparams.rcvstate = STATE_IDLE;
+	irparams.rawlen = 0;
+
+	// Set pin modes
+	pinMode(irparams.recvpin, INPUT);
+}
+
+//+=============================================================================
+// Enable/disable blinking of pin 13 on IR processing
+//
+void  IRrecv::blink13 (int blinkflag)
+{
+	irparams.blinkflag = blinkflag;
+	if (blinkflag)  pinMode(BLINKLED, OUTPUT) ;
+}
+
+//+=============================================================================
+// Return if receiving new IR signals
+//
+bool  IRrecv::isIdle ( )
+{
+ return (irparams.rcvstate == STATE_IDLE || irparams.rcvstate == STATE_STOP) ? true : false;
+}
+//+=============================================================================
+// Restart the ISR state machine
+//
+void  IRrecv::resume ( )
+{
+	irparams.rcvstate = STATE_IDLE;
+	irparams.rawlen = 0;
+}
+
+//+=============================================================================
+// hashdecode - decode an arbitrary IR code.
+// Instead of decoding using a standard encoding scheme
+// (e.g. Sony, NEC, RC5), the code is hashed to a 32-bit value.
+//
+// The algorithm: look at the sequence of MARK signals, and see if each one
+// is shorter (0), the same length (1), or longer (2) than the previous.
+// Do the same with the SPACE signals.  Hash the resulting sequence of 0's,
+// 1's, and 2's to a 32-bit value.  This will give a unique value for each
+// different code (probably), for most code systems.
+//
+// http://arcfn.com/2010/01/using-arbitrary-remotes-with-arduino.html
+//
+// Compare two tick values, returning 0 if newval is shorter,
+// 1 if newval is equal, and 2 if newval is longer
+// Use a tolerance of 20%
+//
+int  IRrecv::compare (unsigned int oldval,  unsigned int newval)
+{
+	if      (newval < oldval * .8)  return 0 ;
+	else if (oldval < newval * .8)  return 2 ;
+	else                            return 1 ;
+}
+
+//+=============================================================================
+// Use FNV hash algorithm: http://isthe.com/chongo/tech/comp/fnv/#FNV-param
+// Converts the raw code values into a 32-bit hash code.
+// Hopefully this code is unique for each button.
+// This isn't a "real" decoding, just an arbitrary value.
+//
+#define FNV_PRIME_32 16777619
+#define FNV_BASIS_32 2166136261
+
+long  IRrecv::decodeHash (decode_results *results)
+{
+	long  hash = FNV_BASIS_32;
+
+	// Require at least 6 samples to prevent triggering on noise
+	if (results->rawlen < 6)  return false ;
+
+	for (int i = 1;  (i + 2) < results->rawlen;  i++) {
+		int value =  compare(results->rawbuf[i], results->rawbuf[i+2]);
+		// Add value into the hash
+		hash = (hash * FNV_PRIME_32) ^ value;
+	}
+
+	results->value       = hash;
+	results->bits        = 32;
+	results->decode_type = UNKNOWN;
+
+	return true;
+}

lib/Arduino-IRremote/irSend.cpp

@@ -0,0 +1,90 @@
+#include "IRremote.h"
+#include "IRremoteInt.h"
+
+//+=============================================================================
+void  IRsend::sendRaw (const unsigned int buf[],  unsigned int len,  unsigned int hz)
+{
+	// Set IR carrier frequency
+	enableIROut(hz);
+
+	for (unsigned int i = 0;  i < len;  i++) {
+		if (i & 1)  space(buf[i]) ;
+		else        mark (buf[i]) ;
+	}
+
+	space(0);  // Always end with the LED off
+}
+
+//+=============================================================================
+// Sends an IR mark for the specified number of microseconds.
+// The mark output is modulated at the PWM frequency.
+//
+void  IRsend::mark (unsigned int time)
+{
+	TIMER_ENABLE_PWM; // Enable pin 3 PWM output
+	if (time > 0) custom_delay_usec(time);
+}
+
+//+=============================================================================
+// Leave pin off for time (given in microseconds)
+// Sends an IR space for the specified number of microseconds.
+// A space is no output, so the PWM output is disabled.
+//
+void  IRsend::space (unsigned int time)
+{
+	TIMER_DISABLE_PWM; // Disable pin 3 PWM output
+	if (time > 0) IRsend::custom_delay_usec(time);
+}
+
+
+
+
+
+//+=============================================================================
+// Enables IR output.  The khz value controls the modulation frequency in kilohertz.
+// The IR output will be on pin 3 (OC2B).
+// This routine is designed for 36-40KHz; if you use it for other values, it's up to you
+// to make sure it gives reasonable results.  (Watch out for overflow / underflow / rounding.)
+// TIMER2 is used in phase-correct PWM mode, with OCR2A controlling the frequency and OCR2B
+// controlling the duty cycle.
+// There is no prescaling, so the output frequency is 16MHz / (2 * OCR2A)
+// To turn the output on and off, we leave the PWM running, but connect and disconnect the output pin.
+// A few hours staring at the ATmega documentation and this will all make sense.
+// See my Secrets of Arduino PWM at http://arcfn.com/2009/07/secrets-of-arduino-pwm.html for details.
+//
+void  IRsend::enableIROut (int khz)
+{
+// FIXME: implement ESP32 support, see IR_TIMER_USE_ESP32 in boarddefs.h
+#ifndef ESP32
+	// Disable the Timer2 Interrupt (which is used for receiving IR)
+	TIMER_DISABLE_INTR; //Timer2 Overflow Interrupt
+
+	pinMode(TIMER_PWM_PIN, OUTPUT);
+	digitalWrite(TIMER_PWM_PIN, LOW); // When not sending PWM, we want it low
+
+	// COM2A = 00: disconnect OC2A
+	// COM2B = 00: disconnect OC2B; to send signal set to 10: OC2B non-inverted
+	// WGM2 = 101: phase-correct PWM with OCRA as top
+	// CS2  = 000: no prescaling
+	// The top value for the timer.  The modulation frequency will be SYSCLOCK / 2 / OCR2A.
+	TIMER_CONFIG_KHZ(khz);
+#endif
+}
+
+//+=============================================================================
+// Custom delay function that circumvents Arduino's delayMicroseconds limit
+
+void IRsend::custom_delay_usec(unsigned long uSecs) {
+  if (uSecs > 4) {
+    unsigned long start = micros();
+    unsigned long endMicros = start + uSecs - 4;
+    if (endMicros < start) { // Check if overflow
+      while ( micros() > start ) {} // wait until overflow
+    }
+    while ( micros() < endMicros ) {} // normal wait
+  } 
+  //else {
+  //  __asm__("nop\n\t"); // must have or compiler optimizes out
+  //}
+}
+

lib/Arduino-IRremote/ir_Aiwa.cpp

@@ -0,0 +1,105 @@
+#include "IRremote.h"
+#include "IRremoteInt.h"
+
+//==============================================================================
+//                         AAA   IIIII  W   W   AAA
+//                        A   A    I    W   W  A   A
+//                        AAAAA    I    W W W  AAAAA
+//                        A   A    I    W W W  A   A
+//                        A   A  IIIII   WWW   A   A
+//==============================================================================
+
+// Based off the RC-T501 RCU
+// Lirc file http://lirc.sourceforge.net/remotes/aiwa/RC-T501
+
+#define AIWA_RC_T501_HZ            38
+#define AIWA_RC_T501_BITS          15
+#define AIWA_RC_T501_PRE_BITS      26
+#define AIWA_RC_T501_POST_BITS      1
+#define AIWA_RC_T501_SUM_BITS    (AIWA_RC_T501_PRE_BITS + AIWA_RC_T501_BITS + AIWA_RC_T501_POST_BITS)
+#define AIWA_RC_T501_HDR_MARK    8800
+#define AIWA_RC_T501_HDR_SPACE   4500
+#define AIWA_RC_T501_BIT_MARK     500
+#define AIWA_RC_T501_ONE_SPACE    600
+#define AIWA_RC_T501_ZERO_SPACE  1700
+
+//+=============================================================================
+#if SEND_AIWA_RC_T501
+void  IRsend::sendAiwaRCT501 (int code)
+{
+	unsigned long  pre = 0x0227EEC0;  // 26-bits
+
+	// Set IR carrier frequency
+	enableIROut(AIWA_RC_T501_HZ);
+
+	// Header
+	mark(AIWA_RC_T501_HDR_MARK);
+	space(AIWA_RC_T501_HDR_SPACE);
+
+	// Send "pre" data
+	for (unsigned long  mask = 1UL << (26 - 1);  mask;  mask >>= 1) {
+		mark(AIWA_RC_T501_BIT_MARK);
+		if (pre & mask)  space(AIWA_RC_T501_ONE_SPACE) ;
+		else             space(AIWA_RC_T501_ZERO_SPACE) ;
+	}
+
+//-v- THIS CODE LOOKS LIKE IT MIGHT BE WRONG - CHECK!
+//    it only send 15bits and ignores the top bit
+//    then uses TOPBIT which is 0x80000000 to check the bit code
+//    I suspect TOPBIT should be changed to 0x00008000
+
+	// Skip first code bit
+	code <<= 1;
+	// Send code
+	for (int  i = 0;  i < 15;  i++) {
+		mark(AIWA_RC_T501_BIT_MARK);
+		if (code & 0x80000000)  space(AIWA_RC_T501_ONE_SPACE) ;
+		else                    space(AIWA_RC_T501_ZERO_SPACE) ;
+		code <<= 1;
+	}
+
+//-^- THIS CODE LOOKS LIKE IT MIGHT BE WRONG - CHECK!
+
+	// POST-DATA, 1 bit, 0x0
+	mark(AIWA_RC_T501_BIT_MARK);
+	space(AIWA_RC_T501_ZERO_SPACE);
+
+	mark(AIWA_RC_T501_BIT_MARK);
+	space(0);
+}
+#endif
+
+//+=============================================================================
+#if DECODE_AIWA_RC_T501
+bool  IRrecv::decodeAiwaRCT501 (decode_results *results)
+{
+	int  data   = 0;
+	int  offset = 1;
+
+	// Check SIZE
+	if (irparams.rawlen < 2 * (AIWA_RC_T501_SUM_BITS) + 4)  return false ;
+
+	// Check HDR Mark/Space
+	if (!MATCH_MARK (results->rawbuf[offset++], AIWA_RC_T501_HDR_MARK ))  return false ;
+	if (!MATCH_SPACE(results->rawbuf[offset++], AIWA_RC_T501_HDR_SPACE))  return false ;
+
+	offset += 26;  // skip pre-data - optional
+	while(offset < irparams.rawlen - 4) {
+		if (MATCH_MARK(results->rawbuf[offset], AIWA_RC_T501_BIT_MARK))  offset++ ;
+		else                                                             return false ;
+
+		// ONE & ZERO
+		if      (MATCH_SPACE(results->rawbuf[offset], AIWA_RC_T501_ONE_SPACE))   data = (data << 1) | 1 ;
+		else if (MATCH_SPACE(results->rawbuf[offset], AIWA_RC_T501_ZERO_SPACE))  data = (data << 1) | 0 ;
+		else                                                                     break ;  // End of one & zero detected
+		offset++;
+	}
+
+	results->bits = (offset - 1) / 2;
+	if (results->bits < 42)  return false ;
+
+	results->value       = data;
+	results->decode_type = AIWA_RC_T501;
+	return true;
+}
+#endif

lib/Arduino-IRremote/ir_Denon.cpp

@@ -0,0 +1,94 @@
+#include "IRremote.h"
+#include "IRremoteInt.h"
+
+// Reverse Engineered by looking at RAW dumps generated by IRremote
+
+// I have since discovered that Denon publish all their IR codes:
+//  https://www.google.co.uk/search?q=DENON+MASTER+IR+Hex+Command+Sheet
+//  -> http://assets.denon.com/documentmaster/us/denon%20master%20ir%20hex.xls
+
+// Having looked at the official Denon Pronto sheet and reverse engineered
+// the timing values from it, it is obvious that Denon have a range of
+// different timings and protocols ...the values here work for my AVR-3801 Amp!
+
+//==============================================================================
+//                    DDDD   EEEEE  N   N   OOO   N   N
+//                     D  D  E      NN  N  O   O  NN  N
+//                     D  D  EEE    N N N  O   O  N N N
+//                     D  D  E      N  NN  O   O  N  NN
+//                    DDDD   EEEEE  N   N   OOO   N   N
+//==============================================================================
+
+#define BITS          14  // The number of bits in the command
+
+#define HDR_MARK     300  // The length of the Header:Mark
+#define HDR_SPACE    750  // The lenght of the Header:Space
+
+#define BIT_MARK     300  // The length of a Bit:Mark
+#define ONE_SPACE   1800  // The length of a Bit:Space for 1's
+#define ZERO_SPACE   750  // The length of a Bit:Space for 0's
+
+//+=============================================================================
+//
+#if SEND_DENON
+void  IRsend::sendDenon (unsigned long data,  int nbits)
+{
+	// Set IR carrier frequency
+	enableIROut(38);
+
+	// Header
+	mark (HDR_MARK);
+	space(HDR_SPACE);
+
+	// Data
+	for (unsigned long  mask = 1UL << (nbits - 1);  mask;  mask >>= 1) {
+		if (data & mask) {
+			mark (BIT_MARK);
+			space(ONE_SPACE);
+		} else {
+			mark (BIT_MARK);
+			space(ZERO_SPACE);
+		}
+	}
+
+	// Footer
+	mark(BIT_MARK);
+    space(0);  // Always end with the LED off
+}
+#endif
+
+//+=============================================================================
+//
+#if DECODE_DENON
+bool  IRrecv::decodeDenon (decode_results *results)
+{
+	unsigned long  data   = 0;  // Somewhere to build our code
+	int            offset = 1;  // Skip the Gap reading
+
+	// Check we have the right amount of data
+	if (irparams.rawlen != 1 + 2 + (2 * BITS) + 1)  return false ;
+
+	// Check initial Mark+Space match
+	if (!MATCH_MARK (results->rawbuf[offset++], HDR_MARK ))  return false ;
+	if (!MATCH_SPACE(results->rawbuf[offset++], HDR_SPACE))  return false ;
+
+	// Read the bits in
+	for (int i = 0;  i < BITS;  i++) {
+		// Each bit looks like: MARK + SPACE_1 -> 1
+		//                 or : MARK + SPACE_0 -> 0
+		if (!MATCH_MARK(results->rawbuf[offset++], BIT_MARK))  return false ;
+
+		// IR data is big-endian, so we shuffle it in from the right:
+		if      (MATCH_SPACE(results->rawbuf[offset], ONE_SPACE))   data = (data << 1) | 1 ;
+		else if (MATCH_SPACE(results->rawbuf[offset], ZERO_SPACE))  data = (data << 1) | 0 ;
+		else                                                        return false ;
+		offset++;
+	}
+
+	// Success
+	results->bits        = BITS;
+	results->value       = data;
+	results->decode_type = DENON;
+	return true;
+}
+#endif

lib/Arduino-IRremote/ir_Dish.cpp

@@ -0,0 +1,54 @@
+#include "IRremote.h"
+#include "IRremoteInt.h"
+
+//==============================================================================
+//                       DDDD   IIIII   SSSS  H   H
+//                        D  D    I    S      H   H
+//                        D  D    I     SSS   HHHHH
+//                        D  D    I        S  H   H
+//                       DDDD   IIIII  SSSS   H   H
+//==============================================================================
+
+// Sharp and DISH support by Todd Treece ( http://unionbridge.org/design/ircommand )
+//
+// The sned function needs to be repeated 4 times
+//
+// Only send the last for characters of the hex.
+// I.E.  Use 0x1C10 instead of 0x0000000000001C10 as listed in the LIRC file.
+//
+// Here is the LIRC file I found that seems to match the remote codes from the
+// oscilloscope:
+//   DISH NETWORK (echostar 301):
+//   http://lirc.sourceforge.net/remotes/echostar/301_501_3100_5100_58xx_59xx
+
+#define DISH_BITS          16
+#define DISH_HDR_MARK     400
+#define DISH_HDR_SPACE   6100
+#define DISH_BIT_MARK     400
+#define DISH_ONE_SPACE   1700
+#define DISH_ZERO_SPACE  2800
+#define DISH_RPT_SPACE   6200
+
+//+=============================================================================
+#if SEND_DISH
+void  IRsend::sendDISH (unsigned long data,  int nbits)
+{
+	// Set IR carrier frequency
+	enableIROut(56);
+
+	mark(DISH_HDR_MARK);
+	space(DISH_HDR_SPACE);
+
+	for (unsigned long  mask = 1UL << (nbits - 1);  mask;  mask >>= 1) {
+		if (data & mask) {
+			mark(DISH_BIT_MARK);
+			space(DISH_ONE_SPACE);
+		} else {
+			mark(DISH_BIT_MARK);
+			space(DISH_ZERO_SPACE);
+		}
+	}
+	mark(DISH_HDR_MARK); //added 26th March 2016, by AnalysIR ( https://www.AnalysIR.com )
+}
+#endif
+

lib/Arduino-IRremote/ir_JVC.cpp

@@ -0,0 +1,101 @@
+#include "IRremote.h"
+#include "IRremoteInt.h"
+
+//==============================================================================
+//                             JJJJJ  V   V   CCCC
+//                               J    V   V  C
+//                               J     V V   C
+//                             J J     V V   C
+//                              J       V     CCCC
+//==============================================================================
+
+#define JVC_BITS           16
+#define JVC_HDR_MARK     8000
+#define JVC_HDR_SPACE    4000
+#define JVC_BIT_MARK      600
+#define JVC_ONE_SPACE    1600
+#define JVC_ZERO_SPACE    550
+#define JVC_RPT_LENGTH  60000
+
+//+=============================================================================
+// JVC does NOT repeat by sending a separate code (like NEC does).
+// The JVC protocol repeats by skipping the header.
+// To send a JVC repeat signal, send the original code value
+//   and set 'repeat' to true
+//
+#if SEND_JVC
+void  IRsend::sendJVC (unsigned long data,  int nbits,  bool repeat)
+{
+	// Set IR carrier frequency
+	enableIROut(38);
+
+	// Only send the Header if this is NOT a repeat command
+	if (!repeat){
+		mark(JVC_HDR_MARK);
+		space(JVC_HDR_SPACE);
+	}
+
+	// Data
+	for (unsigned long  mask = 1UL << (nbits - 1);  mask;  mask >>= 1) {
+		if (data & mask) {
+			mark(JVC_BIT_MARK);
+			space(JVC_ONE_SPACE);
+		} else {
+			mark(JVC_BIT_MARK);
+			space(JVC_ZERO_SPACE);
+		}
+	}
+
+	// Footer
+    mark(JVC_BIT_MARK);
+    space(0);  // Always end with the LED off
+}
+#endif
+
+//+=============================================================================
+#if DECODE_JVC
+bool  IRrecv::decodeJVC (decode_results *results)
+{
+	long  data   = 0;
+	int   offset = 1; // Skip first space
+
+	// Check for repeat
+	if (  (irparams.rawlen - 1 == 33)
+	    && MATCH_MARK(results->rawbuf[offset], JVC_BIT_MARK)
+	    && MATCH_MARK(results->rawbuf[irparams.rawlen-1], JVC_BIT_MARK)
+	   ) {
+		results->bits        = 0;
+		results->value       = REPEAT;
+		results->decode_type = JVC;
+		return true;
+	}
+
+	// Initial mark
+	if (!MATCH_MARK(results->rawbuf[offset++], JVC_HDR_MARK))  return false ;
+
+	if (irparams.rawlen < (2 * JVC_BITS) + 1 )  return false ;
+
+	// Initial space
+	if (!MATCH_SPACE(results->rawbuf[offset++], JVC_HDR_SPACE))  return false ;
+
+	for (int i = 0;  i < JVC_BITS;  i++) {
+		if (!MATCH_MARK(results->rawbuf[offset++], JVC_BIT_MARK))  return false ;
+
+		if      (MATCH_SPACE(results->rawbuf[offset], JVC_ONE_SPACE))   data = (data << 1) | 1 ;
+		else if (MATCH_SPACE(results->rawbuf[offset], JVC_ZERO_SPACE))  data = (data << 1) | 0 ;
+		else                                                            return false ;
+		offset++;
+	}
+
+	// Stop bit
+	if (!MATCH_MARK(results->rawbuf[offset], JVC_BIT_MARK))  return false ;
+
+	// Success
+	results->bits        = JVC_BITS;
+	results->value       = data;
+	results->decode_type = JVC;
+
+	return true;
+}
+#endif
+

lib/Arduino-IRremote/ir_LG.cpp

@@ -0,0 +1,80 @@
+#include "IRremote.h"
+#include "IRremoteInt.h"
+
+//==============================================================================
+//                               L       GGGG
+//                               L      G
+//                               L      G  GG
+//                               L      G   G
+//                               LLLLL   GGG
+//==============================================================================
+
+#define LG_BITS 28
+
+#define LG_HDR_MARK 8000
+#define LG_HDR_SPACE 4000
+#define LG_BIT_MARK 600
+#define LG_ONE_SPACE 1600
+#define LG_ZERO_SPACE 550
+#define LG_RPT_LENGTH 60000
+
+//+=============================================================================
+#if DECODE_LG
+bool  IRrecv::decodeLG (decode_results *results)
+{
+    long  data   = 0;
+    int   offset = 1; // Skip first space
+
+	// Check we have the right amount of data
+    if (irparams.rawlen < (2 * LG_BITS) + 1 )  return false ;
+
+    // Initial mark/space
+    if (!MATCH_MARK(results->rawbuf[offset++], LG_HDR_MARK))  return false ;
+    if (!MATCH_SPACE(results->rawbuf[offset++], LG_HDR_SPACE))  return false ;
+
+    for (int i = 0;  i < LG_BITS;  i++) {
+        if (!MATCH_MARK(results->rawbuf[offset++], LG_BIT_MARK))  return false ;
+
+        if      (MATCH_SPACE(results->rawbuf[offset], LG_ONE_SPACE))   data = (data << 1) | 1 ;
+        else if (MATCH_SPACE(results->rawbuf[offset], LG_ZERO_SPACE))  data = (data << 1) | 0 ;
+        else                                                           return false ;
+        offset++;
+    }
+
+    // Stop bit
+    if (!MATCH_MARK(results->rawbuf[offset], LG_BIT_MARK))   return false ;
+
+    // Success
+    results->bits        = LG_BITS;
+    results->value       = data;
+    results->decode_type = LG;
+    return true;
+}
+#endif
+
+//+=============================================================================
+#if SEND_LG
+void  IRsend::sendLG (unsigned long data,  int nbits)
+{
+    // Set IR carrier frequency
+    enableIROut(38);
+
+    // Header
+    mark(LG_HDR_MARK);
+    space(LG_HDR_SPACE);
+    mark(LG_BIT_MARK);
+
+    // Data
+    for (unsigned long  mask = 1UL << (nbits - 1);  mask;  mask >>= 1) {
+        if (data & mask) {
+            space(LG_ONE_SPACE);
+            mark(LG_BIT_MARK);
+        } else {
+            space(LG_ZERO_SPACE);
+            mark(LG_BIT_MARK);
+        }
+    }
+    space(0);  // Always end with the LED off
+}
+#endif
+

lib/Arduino-IRremote/ir_Lego_PF.cpp

@@ -0,0 +1,46 @@
+#include "IRremote.h"
+#include "IRremoteInt.h"
+#include "ir_Lego_PF_BitStreamEncoder.h"
+
+//==============================================================================
+//    L       EEEEEE   EEEE    OOOO
+//    L       E       E       O    O
+//    L       EEEE    E  EEE  O    O
+//    L       E       E    E  O    O    LEGO Power Functions
+//    LLLLLL  EEEEEE   EEEE    OOOO     Copyright (c) 2016 Philipp Henkel
+//==============================================================================
+
+// Supported Devices
+// LEGO® Power Functions IR Receiver 8884
+
+//+=============================================================================
+//
+#if SEND_LEGO_PF
+
+#if DEBUG
+namespace {
+void logFunctionParameters(uint16_t data, bool repeat) {
+  DBG_PRINT("sendLegoPowerFunctions(data=");
+  DBG_PRINT(data);
+  DBG_PRINT(", repeat=");
+  DBG_PRINTLN(repeat?"true)" : "false)");
+}
+} // anonymous namespace
+#endif // DEBUG
+
+void IRsend::sendLegoPowerFunctions(uint16_t data, bool repeat)
+{
+#if DEBUG
+  ::logFunctionParameters(data, repeat);
+#endif // DEBUG
+
+  enableIROut(38);
+  static LegoPfBitStreamEncoder bitStreamEncoder;
+  bitStreamEncoder.reset(data, repeat);
+  do {
+    mark(bitStreamEncoder.getMarkDuration());
+    space(bitStreamEncoder.getPauseDuration());
+  } while (bitStreamEncoder.next());
+}
+
+#endif // SEND_LEGO_PF

lib/Arduino-IRremote/ir_Lego_PF_BitStreamEncoder.h

@@ -0,0 +1,115 @@
+
+//==============================================================================
+//    L       EEEEEE   EEEE    OOOO
+//    L       E       E       O    O
+//    L       EEEE    E  EEE  O    O
+//    L       E       E    E  O    O    LEGO Power Functions
+//    LLLLLL  EEEEEE   EEEE    OOOO     Copyright (c) 2016, 2017 Philipp Henkel
+//==============================================================================
+
+//+=============================================================================
+//
+
+class LegoPfBitStreamEncoder {
+ private:
+  uint16_t data;
+  bool repeatMessage;
+  uint8_t messageBitIdx;
+  uint8_t repeatCount;
+  uint16_t messageLength;
+
+ public:
+  // HIGH data bit = IR mark + high pause
+  // LOW data bit = IR mark + low pause
+  static const uint16_t LOW_BIT_DURATION = 421;
+  static const uint16_t HIGH_BIT_DURATION = 711;
+  static const uint16_t START_BIT_DURATION = 1184;
+  static const uint16_t STOP_BIT_DURATION = 1184;
+  static const uint8_t IR_MARK_DURATION = 158;
+  static const uint16_t HIGH_PAUSE_DURATION = HIGH_BIT_DURATION - IR_MARK_DURATION;
+  static const uint16_t LOW_PAUSE_DURATION = LOW_BIT_DURATION - IR_MARK_DURATION;
+  static const uint16_t START_PAUSE_DURATION = START_BIT_DURATION - IR_MARK_DURATION;
+  static const uint16_t STOP_PAUSE_DURATION = STOP_BIT_DURATION - IR_MARK_DURATION;
+  static const uint8_t MESSAGE_BITS = 18;
+  static const uint16_t MAX_MESSAGE_LENGTH = 16000;
+
+  void reset(uint16_t data, bool repeatMessage) {
+    this->data = data;
+    this->repeatMessage = repeatMessage;
+    messageBitIdx = 0;
+    repeatCount = 0;
+    messageLength = getMessageLength();
+  }
+
+  int getChannelId() const { return 1 + ((data >> 12) & 0x3); }
+
+  uint16_t getMessageLength() const {
+    // Sum up all marks
+    uint16_t length = MESSAGE_BITS * IR_MARK_DURATION;
+
+    // Sum up all pauses
+    length += START_PAUSE_DURATION;
+    for (unsigned long mask = 1UL << 15; mask; mask >>= 1) {
+      if (data & mask) {
+        length += HIGH_PAUSE_DURATION;
+      } else {
+        length += LOW_PAUSE_DURATION;
+      }
+    }
+    length += STOP_PAUSE_DURATION;
+    return length;
+  }
+
+  boolean next() {
+    messageBitIdx++;
+    if (messageBitIdx >= MESSAGE_BITS) {
+      repeatCount++;
+      messageBitIdx = 0;
+    }
+    if (repeatCount >= 1 && !repeatMessage) {
+      return false;
+    } else if (repeatCount >= 5) {
+      return false;
+    } else {
+      return true;
+    }
+  }
+
+  uint8_t getMarkDuration() const { return IR_MARK_DURATION; }
+
+  uint32_t getPauseDuration() const {
+    if (messageBitIdx == 0)
+      return START_PAUSE_DURATION;
+    else if (messageBitIdx < MESSAGE_BITS - 1) {
+      return getDataBitPause();
+    } else {
+      return getStopPause();
+    }
+  }
+
+ private:
+  uint16_t getDataBitPause() const {
+    const int pos = MESSAGE_BITS - 2 - messageBitIdx;
+    const bool isHigh = data & (1 << pos);
+    return isHigh ? HIGH_PAUSE_DURATION : LOW_PAUSE_DURATION;
+  }
+
+  uint32_t getStopPause() const {
+    if (repeatMessage) {
+      return getRepeatStopPause();
+    } else {
+      return STOP_PAUSE_DURATION;
+    }
+  }
+
+  uint32_t getRepeatStopPause() const {
+    if (repeatCount == 0 || repeatCount == 1) {
+      return STOP_PAUSE_DURATION + (uint32_t)5 * MAX_MESSAGE_LENGTH - messageLength;
+    } else if (repeatCount == 2 || repeatCount == 3) {
+      return STOP_PAUSE_DURATION
+             + (uint32_t)(6 + 2 * getChannelId()) * MAX_MESSAGE_LENGTH - messageLength;
+    } else {
+      return STOP_PAUSE_DURATION;
+    }
+  }
+};

lib/Arduino-IRremote/ir_Mitsubishi.cpp

@@ -0,0 +1,85 @@
+#include "IRremote.h"
+#include "IRremoteInt.h"
+
+//==============================================================================
+//    MMMMM  IIIII TTTTT   SSSS  U   U  BBBB   IIIII   SSSS  H   H  IIIII
+//    M M M    I     T    S      U   U  B   B    I    S      H   H    I
+//    M M M    I     T     SSS   U   U  BBBB     I     SSS   HHHHH    I
+//    M   M    I     T        S  U   U  B   B    I        S  H   H    I
+//    M   M  IIIII   T    SSSS    UUU   BBBBB  IIIII  SSSS   H   H  IIIII
+//==============================================================================
+
+// Looks like Sony except for timings, 48 chars of data and time/space different
+
+#define MITSUBISHI_BITS 16
+
+// Mitsubishi RM 75501
+// 14200 7 41 7 42 7 42 7 17 7 17 7 18 7 41 7 18 7 17 7 17 7 18 7 41 8 17 7 17 7 18 7 17 7
+// #define MITSUBISHI_HDR_MARK	250  // seen range 3500
+#define MITSUBISHI_HDR_SPACE	350 //  7*50+100
+#define MITSUBISHI_ONE_MARK	1950 // 41*50-100
+#define MITSUBISHI_ZERO_MARK  750 // 17*50-100
+// #define MITSUBISHI_DOUBLE_SPACE_USECS  800  // usually ssee 713 - not using ticks as get number wrapround
+// #define MITSUBISHI_RPT_LENGTH 45000
+
+//+=============================================================================
+#if DECODE_MITSUBISHI
+bool  IRrecv::decodeMitsubishi (decode_results *results)
+{
+  // Serial.print("?!? decoding Mitsubishi:");Serial.print(irparams.rawlen); Serial.print(" want "); Serial.println( 2 * MITSUBISHI_BITS + 2);
+  long data = 0;
+  if (irparams.rawlen < 2 * MITSUBISHI_BITS + 2)  return false ;
+  int offset = 0; // Skip first space
+  // Initial space
+
+#if 0
+  // Put this back in for debugging - note can't use #DEBUG as if Debug on we don't see the repeat cos of the delay
+  Serial.print("IR Gap: ");
+  Serial.println( results->rawbuf[offset]);
+  Serial.println( "test against:");
+  Serial.println(results->rawbuf[offset]);
+#endif
+
+#if 0
+  // Not seeing double keys from Mitsubishi
+  if (results->rawbuf[offset] < MITSUBISHI_DOUBLE_SPACE_USECS) {
+    // Serial.print("IR Gap found: ");
+    results->bits = 0;
+    results->value = REPEAT;
+    results->decode_type = MITSUBISHI;
+    return true;
+  }
+#endif
+
+  offset++;
+
+  // Typical
+  // 14200 7 41 7 42 7 42 7 17 7 17 7 18 7 41 7 18 7 17 7 17 7 18 7 41 8 17 7 17 7 18 7 17 7
+
+  // Initial Space
+  if (!MATCH_MARK(results->rawbuf[offset], MITSUBISHI_HDR_SPACE))  return false ;
+  offset++;
+
+  while (offset + 1 < irparams.rawlen) {
+    if      (MATCH_MARK(results->rawbuf[offset], MITSUBISHI_ONE_MARK))   data = (data << 1) | 1 ;
+    else if (MATCH_MARK(results->rawbuf[offset], MITSUBISHI_ZERO_MARK))  data <<= 1 ;
+    else                                                                 return false ;
+    offset++;
+
+    if (!MATCH_SPACE(results->rawbuf[offset], MITSUBISHI_HDR_SPACE))  break ;
+    offset++;
+  }
+
+  // Success
+  results->bits = (offset - 1) / 2;
+  if (results->bits < MITSUBISHI_BITS) {
+    results->bits = 0;
+    return false;
+  }
+
+  results->value       = data;
+  results->decode_type = MITSUBISHI;
+  return true;
+}
+#endif
+

lib/Arduino-IRremote/ir_NEC.cpp

@@ -0,0 +1,98 @@
+#include "IRremote.h"
+#include "IRremoteInt.h"
+
+//==============================================================================
+//                           N   N  EEEEE   CCCC
+//                           NN  N  E      C
+//                           N N N  EEE    C
+//                           N  NN  E      C
+//                           N   N  EEEEE   CCCC
+//==============================================================================
+
+#define NEC_BITS          32
+#define NEC_HDR_MARK    9000
+#define NEC_HDR_SPACE   4500
+#define NEC_BIT_MARK     560
+#define NEC_ONE_SPACE   1690
+#define NEC_ZERO_SPACE   560
+#define NEC_RPT_SPACE   2250
+
+//+=============================================================================
+#if SEND_NEC
+void  IRsend::sendNEC (unsigned long data,  int nbits)
+{
+	// Set IR carrier frequency
+	enableIROut(38);
+
+	// Header
+	mark(NEC_HDR_MARK);
+	space(NEC_HDR_SPACE);
+
+	// Data
+	for (unsigned long  mask = 1UL << (nbits - 1);  mask;  mask >>= 1) {
+		if (data & mask) {
+			mark(NEC_BIT_MARK);
+			space(NEC_ONE_SPACE);
+		} else {
+			mark(NEC_BIT_MARK);
+			space(NEC_ZERO_SPACE);
+		}
+	}
+
+	// Footer
+	mark(NEC_BIT_MARK);
+	space(0);  // Always end with the LED off
+}
+#endif
+
+//+=============================================================================
+// NECs have a repeat only 4 items long
+//
+#if DECODE_NEC
+bool  IRrecv::decodeNEC (decode_results *results)
+{
+	long  data   = 0;  // We decode in to here; Start with nothing
+	int   offset = 1;  // Index in to results; Skip first entry!?
+
+	// Check header "mark"
+	if (!MATCH_MARK(results->rawbuf[offset], NEC_HDR_MARK))  return false ;
+	offset++;
+
+	// Check for repeat
+	if ( (irparams.rawlen == 4)
+	    && MATCH_SPACE(results->rawbuf[offset  ], NEC_RPT_SPACE)
+	    && MATCH_MARK (results->rawbuf[offset+1], NEC_BIT_MARK )
+	   ) {
+		results->bits        = 0;
+		results->value       = REPEAT;
+		results->decode_type = NEC;
+		return true;
+	}
+
+	// Check we have enough data
+	if (irparams.rawlen < (2 * NEC_BITS) + 4)  return false ;
+
+	// Check header "space"
+	if (!MATCH_SPACE(results->rawbuf[offset], NEC_HDR_SPACE))  return false ;
+	offset++;
+
+	// Build the data
+	for (int i = 0;  i < NEC_BITS;  i++) {
+		// Check data "mark"
+		if (!MATCH_MARK(results->rawbuf[offset], NEC_BIT_MARK))  return false ;
+		offset++;
+        // Suppend this bit
+		if      (MATCH_SPACE(results->rawbuf[offset], NEC_ONE_SPACE ))  data = (data << 1) | 1 ;
+		else if (MATCH_SPACE(results->rawbuf[offset], NEC_ZERO_SPACE))  data = (data << 1) | 0 ;
+		else                                                            return false ;
+		offset++;
+	}
+
+	// Success
+	results->bits        = NEC_BITS;
+	results->value       = data;
+	results->decode_type = NEC;
+
+	return true;
+}
+#endif

lib/Arduino-IRremote/ir_Panasonic.cpp

@@ -0,0 +1,78 @@
+#include "IRremote.h"
+#include "IRremoteInt.h"
+
+//==============================================================================
+//       PPPP    AAA   N   N   AAA    SSSS   OOO   N   N  IIIII   CCCC
+//       P   P  A   A  NN  N  A   A  S      O   O  NN  N    I    C
+//       PPPP   AAAAA  N N N  AAAAA   SSS   O   O  N N N    I    C
+//       P      A   A  N  NN  A   A      S  O   O  N  NN    I    C
+//       P      A   A  N   N  A   A  SSSS    OOO   N   N  IIIII   CCCC
+//==============================================================================
+
+#define PANASONIC_BITS          48
+#define PANASONIC_HDR_MARK    3502
+#define PANASONIC_HDR_SPACE   1750
+#define PANASONIC_BIT_MARK     502
+#define PANASONIC_ONE_SPACE   1244
+#define PANASONIC_ZERO_SPACE   400
+
+//+=============================================================================
+#if SEND_PANASONIC
+void  IRsend::sendPanasonic (unsigned int address,  unsigned long data)
+{
+	// Set IR carrier frequency
+	enableIROut(35);
+
+	// Header
+	mark(PANASONIC_HDR_MARK);
+	space(PANASONIC_HDR_SPACE);
+
+	// Address
+	for (unsigned long  mask = 1UL << (16 - 1);  mask;  mask >>= 1) {
+		mark(PANASONIC_BIT_MARK);
+		if (address & mask)  space(PANASONIC_ONE_SPACE) ;
+		else                 space(PANASONIC_ZERO_SPACE) ;
+    }
+
+	// Data
+	for (unsigned long  mask = 1UL << (32 - 1);  mask;  mask >>= 1) {
+        mark(PANASONIC_BIT_MARK);
+        if (data & mask)  space(PANASONIC_ONE_SPACE) ;
+        else              space(PANASONIC_ZERO_SPACE) ;
+    }
+
+	// Footer
+    mark(PANASONIC_BIT_MARK);
+    space(0);  // Always end with the LED off
+}
+#endif
+
+//+=============================================================================
+#if DECODE_PANASONIC
+bool  IRrecv::decodePanasonic (decode_results *results)
+{
+    unsigned long long  data   = 0;
+    int                 offset = 1;
+
+    if (!MATCH_MARK(results->rawbuf[offset++], PANASONIC_HDR_MARK ))  return false ;
+    if (!MATCH_MARK(results->rawbuf[offset++], PANASONIC_HDR_SPACE))  return false ;
+
+    // decode address
+    for (int i = 0;  i < PANASONIC_BITS;  i++) {
+        if (!MATCH_MARK(results->rawbuf[offset++], PANASONIC_BIT_MARK))  return false ;
+
+        if      (MATCH_SPACE(results->rawbuf[offset],PANASONIC_ONE_SPACE ))  data = (data << 1) | 1 ;
+        else if (MATCH_SPACE(results->rawbuf[offset],PANASONIC_ZERO_SPACE))  data = (data << 1) | 0 ;
+        else                                                                 return false ;
+        offset++;
+    }
+
+    results->value       = (unsigned long)data;
+    results->address     = (unsigned int)(data >> 32);
+    results->decode_type = PANASONIC;
+    results->bits        = PANASONIC_BITS;
+
+    return true;
+}
+#endif
+

lib/Arduino-IRremote/ir_RC5_RC6.cpp

@@ -0,0 +1,207 @@
+#include "IRremote.h"
+#include "IRremoteInt.h"
+
+//+=============================================================================
+// Gets one undecoded level at a time from the raw buffer.
+// The RC5/6 decoding is easier if the data is broken into time intervals.
+// E.g. if the buffer has MARK for 2 time intervals and SPACE for 1,
+// successive calls to getRClevel will return MARK, MARK, SPACE.
+// offset and used are updated to keep track of the current position.
+// t1 is the time interval for a single bit in microseconds.
+// Returns -1 for error (measured time interval is not a multiple of t1).
+//
+#if (DECODE_RC5 || DECODE_RC6)
+int  IRrecv::getRClevel (decode_results *results,  int *offset,  int *used,  int t1)
+{
+	int  width;
+	int  val;
+	int  correction;
+	int  avail;
+
+	if (*offset >= results->rawlen)  return SPACE ;  // After end of recorded buffer, assume SPACE.
+	width      = results->rawbuf[*offset];
+	val        = ((*offset) % 2) ? MARK : SPACE;
+	correction = (val == MARK) ? MARK_EXCESS : - MARK_EXCESS;
+
+	if      (MATCH(width, (  t1) + correction))  avail = 1 ;
+	else if (MATCH(width, (2*t1) + correction))  avail = 2 ;
+	else if (MATCH(width, (3*t1) + correction))  avail = 3 ;
+	else                                         return -1 ;
+
+	(*used)++;
+	if (*used >= avail) {
+		*used = 0;
+		(*offset)++;
+	}
+
+	DBG_PRINTLN( (val == MARK) ? "MARK" : "SPACE" );
+
+	return val;
+}
+#endif
+
+//==============================================================================
+// RRRR    CCCC  55555
+// R   R  C      5
+// RRRR   C      5555
+// R  R   C          5
+// R   R   CCCC  5555
+//
+// NB: First bit must be a one (start bit)
+//
+#define MIN_RC5_SAMPLES     11
+#define RC5_T1             889
+#define RC5_RPT_LENGTH   46000
+
+//+=============================================================================
+#if SEND_RC5
+void  IRsend::sendRC5 (unsigned long data,  int nbits)
+{
+	// Set IR carrier frequency
+	enableIROut(36);
+
+	// Start
+	mark(RC5_T1);
+	space(RC5_T1);
+	mark(RC5_T1);
+
+	// Data
+	for (unsigned long  mask = 1UL << (nbits - 1);  mask;  mask >>= 1) {
+		if (data & mask) {
+			space(RC5_T1); // 1 is space, then mark
+			mark(RC5_T1);
+		} else {
+			mark(RC5_T1);
+			space(RC5_T1);
+		}
+	}
+
+	space(0);  // Always end with the LED off
+}
+#endif
+
+//+=============================================================================
+#if DECODE_RC5
+bool  IRrecv::decodeRC5 (decode_results *results)
+{
+	int   nbits;
+	long  data   = 0;
+	int   used   = 0;
+	int   offset = 1;  // Skip gap space
+
+	if (irparams.rawlen < MIN_RC5_SAMPLES + 2)  return false ;
+
+	// Get start bits
+	if (getRClevel(results, &offset, &used, RC5_T1) != MARK)   return false ;
+	if (getRClevel(results, &offset, &used, RC5_T1) != SPACE)  return false ;
+	if (getRClevel(results, &offset, &used, RC5_T1) != MARK)   return false ;
+
+	for (nbits = 0;  offset < irparams.rawlen;  nbits++) {
+		int  levelA = getRClevel(results, &offset, &used, RC5_T1);
+		int  levelB = getRClevel(results, &offset, &used, RC5_T1);
+
+		if      ((levelA == SPACE) && (levelB == MARK ))  data = (data << 1) | 1 ;
+		else if ((levelA == MARK ) && (levelB == SPACE))  data = (data << 1) | 0 ;
+		else                                              return false ;
+	}
+
+	// Success
+	results->bits        = nbits;
+	results->value       = data;
+	results->decode_type = RC5;
+	return true;
+}
+#endif
+
+//+=============================================================================
+// RRRR    CCCC   6666
+// R   R  C      6
+// RRRR   C      6666
+// R  R   C      6   6
+// R   R   CCCC   666
+//
+// NB : Caller needs to take care of flipping the toggle bit
+//
+#define MIN_RC6_SAMPLES      1
+#define RC6_HDR_MARK      2666
+#define RC6_HDR_SPACE      889
+#define RC6_T1             444
+#define RC6_RPT_LENGTH   46000
+
+#if SEND_RC6
+void  IRsend::sendRC6 (unsigned long data,  int nbits)
+{
+	// Set IR carrier frequency
+	enableIROut(36);
+
+	// Header
+	mark(RC6_HDR_MARK);
+	space(RC6_HDR_SPACE);
+
+	// Start bit
+	mark(RC6_T1);
+	space(RC6_T1);
+
+	// Data
+	for (unsigned long  i = 1, mask = 1UL << (nbits - 1);  mask;  i++, mask >>= 1) {
+		// The fourth bit we send is a "double width trailer bit"
+		int  t = (i == 4) ? (RC6_T1 * 2) : (RC6_T1) ;
+		if (data & mask) {
+			mark(t);
+			space(t);
+		} else {
+			space(t);
+			mark(t);
+		}
+	}
+
+	space(0);  // Always end with the LED off
+}
+#endif
+
+//+=============================================================================
+#if DECODE_RC6
+bool  IRrecv::decodeRC6 (decode_results *results)
+{
+	int   nbits;
+	long  data   = 0;
+	int   used   = 0;
+	int   offset = 1;  // Skip first space
+
+	if (results->rawlen < MIN_RC6_SAMPLES)  return false ;
+
+	// Initial mark
+	if (!MATCH_MARK(results->rawbuf[offset++],  RC6_HDR_MARK))   return false ;
+	if (!MATCH_SPACE(results->rawbuf[offset++], RC6_HDR_SPACE))  return false ;
+
+	// Get start bit (1)
+	if (getRClevel(results, &offset, &used, RC6_T1) != MARK)   return false ;
+	if (getRClevel(results, &offset, &used, RC6_T1) != SPACE)  return false ;
+
+	for (nbits = 0;  offset < results->rawlen;  nbits++) {
+		int  levelA, levelB;  // Next two levels
+
+		levelA = getRClevel(results, &offset, &used, RC6_T1);
+		if (nbits == 3) {
+			// T bit is double wide; make sure second half matches
+			if (levelA != getRClevel(results, &offset, &used, RC6_T1)) return false;
+		}
+
+		levelB = getRClevel(results, &offset, &used, RC6_T1);
+		if (nbits == 3) {
+			// T bit is double wide; make sure second half matches
+			if (levelB != getRClevel(results, &offset, &used, RC6_T1)) return false;
+		}
+
+		if      ((levelA == MARK ) && (levelB == SPACE))  data = (data << 1) | 1 ;  // inverted compared to RC5
+		else if ((levelA == SPACE) && (levelB == MARK ))  data = (data << 1) | 0 ;  // ...
+		else                                              return false ;            // Error
+	}
+
+	// Success
+	results->bits        = nbits;
+	results->value       = data;
+	results->decode_type = RC6;
+	return true;
+}
+#endif

lib/Arduino-IRremote/ir_Samsung.cpp

@@ -0,0 +1,92 @@
+#include "IRremote.h"
+#include "IRremoteInt.h"
+
+//==============================================================================
+//              SSSS   AAA    MMM    SSSS  U   U  N   N   GGGG
+//             S      A   A  M M M  S      U   U  NN  N  G
+//              SSS   AAAAA  M M M   SSS   U   U  N N N  G  GG
+//                 S  A   A  M   M      S  U   U  N  NN  G   G
+//             SSSS   A   A  M   M  SSSS    UUU   N   N   GGG
+//==============================================================================
+
+#define SAMSUNG_BITS          32
+#define SAMSUNG_HDR_MARK    5000
+#define SAMSUNG_HDR_SPACE   5000
+#define SAMSUNG_BIT_MARK     560
+#define SAMSUNG_ONE_SPACE   1600
+#define SAMSUNG_ZERO_SPACE   560
+#define SAMSUNG_RPT_SPACE   2250
+
+//+=============================================================================
+#if SEND_SAMSUNG
+void  IRsend::sendSAMSUNG (unsigned long data,  int nbits)
+{
+	// Set IR carrier frequency
+	enableIROut(38);
+
+	// Header
+	mark(SAMSUNG_HDR_MARK);
+	space(SAMSUNG_HDR_SPACE);
+
+	// Data
+	for (unsigned long  mask = 1UL << (nbits - 1);  mask;  mask >>= 1) {
+		if (data & mask) {
+			mark(SAMSUNG_BIT_MARK);
+			space(SAMSUNG_ONE_SPACE);
+		} else {
+			mark(SAMSUNG_BIT_MARK);
+			space(SAMSUNG_ZERO_SPACE);
+		}
+	}
+
+	// Footer
+	mark(SAMSUNG_BIT_MARK);
+    space(0);  // Always end with the LED off
+}
+#endif
+
+//+=============================================================================
+// SAMSUNGs have a repeat only 4 items long
+//
+#if DECODE_SAMSUNG
+bool  IRrecv::decodeSAMSUNG (decode_results *results)
+{
+	long  data   = 0;
+	int   offset = 1;  // Skip first space
+
+	// Initial mark
+	if (!MATCH_MARK(results->rawbuf[offset], SAMSUNG_HDR_MARK))   return false ;
+	offset++;
+
+	// Check for repeat
+	if (    (irparams.rawlen == 4)
+	     && MATCH_SPACE(results->rawbuf[offset], SAMSUNG_RPT_SPACE)
+	     && MATCH_MARK(results->rawbuf[offset+1], SAMSUNG_BIT_MARK)
+	   ) {
+		results->bits        = 0;
+		results->value       = REPEAT;
+		results->decode_type = SAMSUNG;
+		return true;
+	}
+	if (irparams.rawlen < (2 * SAMSUNG_BITS) + 4)  return false ;
+
+	// Initial space
+	if (!MATCH_SPACE(results->rawbuf[offset++], SAMSUNG_HDR_SPACE))  return false ;
+
+	for (int i = 0;  i < SAMSUNG_BITS;   i++) {
+		if (!MATCH_MARK(results->rawbuf[offset++], SAMSUNG_BIT_MARK))  return false ;
+
+		if      (MATCH_SPACE(results->rawbuf[offset], SAMSUNG_ONE_SPACE))   data = (data << 1) | 1 ;
+		else if (MATCH_SPACE(results->rawbuf[offset], SAMSUNG_ZERO_SPACE))  data = (data << 1) | 0 ;
+		else                                                                return false ;
+		offset++;
+	}
+
+	// Success
+	results->bits        = SAMSUNG_BITS;
+	results->value       = data;
+	results->decode_type = SAMSUNG;
+	return true;
+}
+#endif
+

lib/Arduino-IRremote/ir_Sanyo.cpp

@@ -0,0 +1,76 @@
+#include "IRremote.h"
+#include "IRremoteInt.h"
+
+//==============================================================================
+//                      SSSS   AAA   N   N  Y   Y   OOO
+//                     S      A   A  NN  N   Y Y   O   O
+//                      SSS   AAAAA  N N N    Y    O   O
+//                         S  A   A  N  NN    Y    O   O
+//                     SSSS   A   A  N   N    Y     OOO
+//==============================================================================
+
+// I think this is a Sanyo decoder:  Serial = SA 8650B
+// Looks like Sony except for timings, 48 chars of data and time/space different
+
+#define SANYO_BITS                   12
+#define SANYO_HDR_MARK	           3500  // seen range 3500
+#define SANYO_HDR_SPACE	            950  // seen 950
+#define SANYO_ONE_MARK	           2400  // seen 2400
+#define SANYO_ZERO_MARK             700  // seen 700
+#define SANYO_DOUBLE_SPACE_USECS    800  // usually ssee 713 - not using ticks as get number wrapround
+#define SANYO_RPT_LENGTH          45000
+
+//+=============================================================================
+#if DECODE_SANYO
+bool  IRrecv::decodeSanyo (decode_results *results)
+{
+	long  data   = 0;
+	int   offset = 0;  // Skip first space  <-- CHECK THIS!
+
+	if (irparams.rawlen < (2 * SANYO_BITS) + 2)  return false ;
+
+#if 0
+	// Put this back in for debugging - note can't use #DEBUG as if Debug on we don't see the repeat cos of the delay
+	Serial.print("IR Gap: ");
+	Serial.println( results->rawbuf[offset]);
+	Serial.println( "test against:");
+	Serial.println(results->rawbuf[offset]);
+#endif
+
+	// Initial space
+	if (results->rawbuf[offset] < SANYO_DOUBLE_SPACE_USECS) {
+		//Serial.print("IR Gap found: ");
+		results->bits        = 0;
+		results->value       = REPEAT;
+		results->decode_type = SANYO;
+		return true;
+	}
+	offset++;
+
+	// Initial mark
+	if (!MATCH_MARK(results->rawbuf[offset++], SANYO_HDR_MARK))  return false ;
+
+	// Skip Second Mark
+	if (!MATCH_MARK(results->rawbuf[offset++], SANYO_HDR_MARK))  return false ;
+
+	while (offset + 1 < irparams.rawlen) {
+		if (!MATCH_SPACE(results->rawbuf[offset++], SANYO_HDR_SPACE))  break ;
+
+		if      (MATCH_MARK(results->rawbuf[offset], SANYO_ONE_MARK))   data = (data << 1) | 1 ;
+		else if (MATCH_MARK(results->rawbuf[offset], SANYO_ZERO_MARK))  data = (data << 1) | 0 ;
+		else                                                            return false ;
+		offset++;
+	}
+
+	// Success
+	results->bits = (offset - 1) / 2;
+	if (results->bits < 12) {
+		results->bits = 0;
+		return false;
+	}
+
+	results->value       = data;
+	results->decode_type = SANYO;
+	return true;
+}
+#endif

lib/Arduino-IRremote/ir_Sharp.cpp

@@ -0,0 +1,71 @@
+#include "IRremote.h"
+#include "IRremoteInt.h"
+
+//==============================================================================
+//                       SSSS  H   H   AAA   RRRR   PPPP
+//                      S      H   H  A   A  R   R  P   P
+//                       SSS   HHHHH  AAAAA  RRRR   PPPP
+//                          S  H   H  A   A  R  R   P
+//                      SSSS   H   H  A   A  R   R  P
+//==============================================================================
+
+// Sharp and DISH support by Todd Treece: http://unionbridge.org/design/ircommand
+//
+// The send function has the necessary repeat built in because of the need to
+// invert the signal.
+//
+// Sharp protocol documentation:
+//   http://www.sbprojects.com/knowledge/ir/sharp.htm
+//
+// Here is the LIRC file I found that seems to match the remote codes from the
+// oscilloscope:
+//   Sharp LCD TV:
+//   http://lirc.sourceforge.net/remotes/sharp/GA538WJSA
+
+#define SHARP_BITS             15
+#define SHARP_BIT_MARK        245
+#define SHARP_ONE_SPACE      1805
+#define SHARP_ZERO_SPACE      795
+#define SHARP_GAP          600000
+#define SHARP_RPT_SPACE      3000
+
+#define SHARP_TOGGLE_MASK  0x3FF
+
+//+=============================================================================
+#if SEND_SHARP
+void  IRsend::sendSharpRaw (unsigned long data,  int nbits)
+{
+	enableIROut(38);
+
+	// Sending codes in bursts of 3 (normal, inverted, normal) makes transmission
+	// much more reliable. That's the exact behaviour of CD-S6470 remote control.
+	for (int n = 0;  n < 3;  n++) {
+		for (unsigned long  mask = 1UL << (nbits - 1);  mask;  mask >>= 1) {
+			if (data & mask) {
+				mark(SHARP_BIT_MARK);
+				space(SHARP_ONE_SPACE);
+			} else {
+				mark(SHARP_BIT_MARK);
+				space(SHARP_ZERO_SPACE);
+			}
+		}
+
+		mark(SHARP_BIT_MARK);
+		space(SHARP_ZERO_SPACE);
+		delay(40);
+
+		data = data ^ SHARP_TOGGLE_MASK;
+	}
+}
+#endif
+
+//+=============================================================================
+// Sharp send compatible with data obtained through decodeSharp()
+//                                                  ^^^^^^^^^^^^^ FUNCTION MISSING!
+//
+#if SEND_SHARP
+void  IRsend::sendSharp (unsigned int address,  unsigned int command)
+{
+	sendSharpRaw((address << 10) | (command << 2) | 2, SHARP_BITS);
+}
+#endif

lib/Arduino-IRremote/ir_Sony.cpp

@@ -0,0 +1,95 @@
+#include "IRremote.h"
+#include "IRremoteInt.h"
+
+//==============================================================================
+//                           SSSS   OOO   N   N  Y   Y
+//                          S      O   O  NN  N   Y Y
+//                           SSS   O   O  N N N    Y
+//                              S  O   O  N  NN    Y
+//                          SSSS    OOO   N   N    Y
+//==============================================================================
+
+#define SONY_BITS                   12
+#define SONY_HDR_MARK             2400
+#define SONY_HDR_SPACE             600
+#define SONY_ONE_MARK             1200
+#define SONY_ZERO_MARK             600
+#define SONY_RPT_LENGTH          45000
+#define SONY_DOUBLE_SPACE_USECS    500  // usually ssee 713 - not using ticks as get number wrapround
+
+//+=============================================================================
+#if SEND_SONY
+void  IRsend::sendSony (unsigned long data,  int nbits)
+{
+	// Set IR carrier frequency
+	enableIROut(40);
+
+	// Header
+	mark(SONY_HDR_MARK);
+	space(SONY_HDR_SPACE);
+
+	// Data
+	for (unsigned long  mask = 1UL << (nbits - 1);  mask;  mask >>= 1) {
+		if (data & mask) {
+			mark(SONY_ONE_MARK);
+			space(SONY_HDR_SPACE);
+		} else {
+			mark(SONY_ZERO_MARK);
+			space(SONY_HDR_SPACE);
+    	}
+  	}
+
+	// We will have ended with LED off
+}
+#endif
+
+//+=============================================================================
+#if DECODE_SONY
+bool  IRrecv::decodeSony (decode_results *results)
+{
+	long  data   = 0;
+	int   offset = 0;  // Dont skip first space, check its size
+
+	if (irparams.rawlen < (2 * SONY_BITS) + 2)  return false ;
+
+	// Some Sony's deliver repeats fast after first
+	// unfortunately can't spot difference from of repeat from two fast clicks
+	if (results->rawbuf[offset] < SONY_DOUBLE_SPACE_USECS) {
+		// Serial.print("IR Gap found: ");
+		results->bits = 0;
+		results->value = REPEAT;
+
+#	ifdef DECODE_SANYO
+		results->decode_type = SANYO;
+#	else
+		results->decode_type = UNKNOWN;
+#	endif
+
+	    return true;
+	}
+	offset++;
+
+	// Initial mark
+	if (!MATCH_MARK(results->rawbuf[offset++], SONY_HDR_MARK))  return false ;
+
+	while (offset + 1 < irparams.rawlen) {
+		if (!MATCH_SPACE(results->rawbuf[offset++], SONY_HDR_SPACE))  break ;
+
+		if      (MATCH_MARK(results->rawbuf[offset], SONY_ONE_MARK))   data = (data << 1) | 1 ;
+		else if (MATCH_MARK(results->rawbuf[offset], SONY_ZERO_MARK))  data = (data << 1) | 0 ;
+		else                                                           return false ;
+		offset++;
+	}
+
+	// Success
+	results->bits = (offset - 1) / 2;
+	if (results->bits < 12) {
+		results->bits = 0;
+		return false;
+	}
+	results->value       = data;
+	results->decode_type = SONY;
+	return true;
+}
+#endif
+

lib/Arduino-IRremote/ir_Template.cpp

@@ -0,0 +1,179 @@
+/*
+Assuming the protocol we are adding is for the (imaginary) manufacturer:  Shuzu
+
+Our fantasy protocol is a standard protocol, so we can use this standard
+template without too much work. Some protocols are quite unique and will require
+considerably more work in this file! It is way beyond the scope of this text to
+explain how to reverse engineer "unusual" IR protocols. But, unless you own an
+oscilloscope, the starting point is probably to use the rawDump.ino sketch and
+try to spot the pattern!
+
+Before you start, make sure the IR library is working OK:
+  # Open up the Arduino IDE
+  # Load up the rawDump.ino example sketch
+  # Run it
+
+Now we can start to add our new protocol...
+
+1. Copy this file to : ir_Shuzu.cpp
+
+2. Replace all occurrences of "Shuzu" with the name of your protocol.
+
+3. Tweak the #defines to suit your protocol.
+
+4. If you're lucky, tweaking the #defines will make the default send() function
+   work.
+
+5. Again, if you're lucky, tweaking the #defines will have made the default
+   decode() function work.
+
+You have written the code to support your new protocol!
+
+Now you must do a few things to add it to the IRremote system:
+
+1. Open IRremote.h and make the following changes:
+   REMEMEBER to change occurences of "SHUZU" with the name of your protocol
+
+   A. At the top, in the section "Supported Protocols", add:
+      #define DECODE_SHUZU  1
+      #define SEND_SHUZU    1
+
+   B. In the section "enumerated list of all supported formats", add:
+      SHUZU,
+      to the end of the list (notice there is a comma after the protocol name)
+
+   C. Further down in "Main class for receiving IR", add:
+      //......................................................................
+      #if DECODE_SHUZU
+          bool  decodeShuzu (decode_results *results) ;
+      #endif
+
+   D. Further down in "Main class for sending IR", add:
+      //......................................................................
+      #if SEND_SHUZU
+          void  sendShuzu (unsigned long data,  int nbits) ;
+      #endif
+
+   E. Save your changes and close the file
+
+2. Now open irRecv.cpp and make the following change:
+
+   A. In the function IRrecv::decode(), add:
+      #ifdef DECODE_NEC
+          DBG_PRINTLN("Attempting Shuzu decode");
+          if (decodeShuzu(results))  return true ;
+      #endif
+
+   B. Save your changes and close the file
+
+You will probably want to add your new protocol to the example sketch
+
+3. Open MyDocuments\Arduino\libraries\IRremote\examples\IRrecvDumpV2.ino
+
+   A. In the encoding() function, add:
+      case SHUZU:    Serial.print("SHUZU");     break ;
+
+Now open the Arduino IDE, load up the rawDump.ino sketch, and run it.
+Hopefully it will compile and upload.
+If it doesn't, you've done something wrong. Check your work.
+If you can't get it to work - seek help from somewhere.
+
+If you get this far, I will assume you have successfully added your new protocol
+There is one last thing to do.
+
+1. Delete this giant instructional comment.
+
+2. Send a copy of your work to us so we can include it in the library and
+   others may benefit from your hard work and maybe even write a song about how
+   great you are for helping them! :)
+
+Regards,
+  BlueChip
+*/
+
+#include "IRremote.h"
+#include "IRremoteInt.h"
+
+//==============================================================================
+//
+//
+//                              S H U Z U
+//
+//
+//==============================================================================
+
+#define BITS          32  // The number of bits in the command
+
+#define HDR_MARK    1000  // The length of the Header:Mark
+#define HDR_SPACE   2000  // The lenght of the Header:Space
+
+#define BIT_MARK    3000  // The length of a Bit:Mark
+#define ONE_SPACE   4000  // The length of a Bit:Space for 1's
+#define ZERO_SPACE  5000  // The length of a Bit:Space for 0's
+
+#define OTHER       1234  // Other things you may need to define
+
+//+=============================================================================
+//
+#if SEND_SHUZU
+void  IRsend::sendShuzu (unsigned long data,  int nbits)
+{
+	// Set IR carrier frequency
+	enableIROut(38);
+
+	// Header
+	mark (HDR_MARK);
+	space(HDR_SPACE);
+
+	// Data
+	for (unsigned long  mask = 1UL << (nbits - 1);  mask;  mask >>= 1) {
+		if (data & mask) {
+			mark (BIT_MARK);
+			space(ONE_SPACE);
+		} else {
+			mark (BIT_MARK);
+			space(ZERO_SPACE);
+		}
+	}
+
+	// Footer
+	mark(BIT_MARK);
+    space(0);  // Always end with the LED off
+}
+#endif
+
+//+=============================================================================
+//
+#if DECODE_SHUZU
+bool  IRrecv::decodeShuzu (decode_results *results)
+{
+	unsigned long  data   = 0;  // Somewhere to build our code
+	int            offset = 1;  // Skip the Gap reading
+
+	// Check we have the right amount of data
+	if (irparams.rawlen != 1 + 2 + (2 * BITS) + 1)  return false ;
+
+	// Check initial Mark+Space match
+	if (!MATCH_MARK (results->rawbuf[offset++], HDR_MARK ))  return false ;
+	if (!MATCH_SPACE(results->rawbuf[offset++], HDR_SPACE))  return false ;
+
+	// Read the bits in
+	for (int i = 0;  i < SHUZU_BITS;  i++) {
+		// Each bit looks like: MARK + SPACE_1 -> 1
+		//                 or : MARK + SPACE_0 -> 0
+		if (!MATCH_MARK(results->rawbuf[offset++], BIT_MARK))  return false ;
+
+		// IR data is big-endian, so we shuffle it in from the right:
+		if      (MATCH_SPACE(results->rawbuf[offset], ONE_SPACE))   data = (data << 1) | 1 ;
+		else if (MATCH_SPACE(results->rawbuf[offset], ZERO_SPACE))  data = (data << 1) | 0 ;
+		else                                                        return false ;
+		offset++;
+	}
+
+	// Success
+	results->bits        = BITS;
+	results->value       = data;
+	results->decode_type = SHUZU;
+	return true;
+}
+#endif

lib/Arduino-IRremote/ir_Whynter.cpp

@@ -0,0 +1,91 @@
+#include "IRremote.h"
+#include "IRremoteInt.h"
+
+//==============================================================================
+//               W   W  H   H  Y   Y N   N TTTTT EEEEE  RRRRR
+//               W   W  H   H   Y Y  NN  N   T   E      R   R
+//               W W W  HHHHH    Y   N N N   T   EEE    RRRR
+//               W W W  H   H    Y   N  NN   T   E      R  R
+//                WWW   H   H    Y   N   N   T   EEEEE  R   R
+//==============================================================================
+
+#define WHYNTER_BITS          32
+#define WHYNTER_HDR_MARK    2850
+#define WHYNTER_HDR_SPACE   2850
+#define WHYNTER_BIT_MARK     750
+#define WHYNTER_ONE_MARK     750
+#define WHYNTER_ONE_SPACE   2150
+#define WHYNTER_ZERO_MARK    750
+#define WHYNTER_ZERO_SPACE   750
+
+//+=============================================================================
+#if SEND_WHYNTER
+void  IRsend::sendWhynter (unsigned long data,  int nbits)
+{
+	// Set IR carrier frequency
+	enableIROut(38);
+
+	// Start
+	mark(WHYNTER_ZERO_MARK);
+	space(WHYNTER_ZERO_SPACE);
+
+	// Header
+	mark(WHYNTER_HDR_MARK);
+	space(WHYNTER_HDR_SPACE);
+
+	// Data
+	for (unsigned long  mask = 1UL << (nbits - 1);  mask;  mask >>= 1) {
+		if (data & mask) {
+			mark(WHYNTER_ONE_MARK);
+			space(WHYNTER_ONE_SPACE);
+		} else {
+			mark(WHYNTER_ZERO_MARK);
+			space(WHYNTER_ZERO_SPACE);
+		}
+	}
+
+	// Footer
+	mark(WHYNTER_ZERO_MARK);
+	space(WHYNTER_ZERO_SPACE);  // Always end with the LED off
+}
+#endif
+
+//+=============================================================================
+#if DECODE_WHYNTER
+bool  IRrecv::decodeWhynter (decode_results *results)
+{
+	long  data   = 0;
+	int   offset = 1;  // skip initial space
+
+	// Check we have the right amount of data
+	if (irparams.rawlen < (2 * WHYNTER_BITS) + 6)  return false ;
+
+	// Sequence begins with a bit mark and a zero space
+	if (!MATCH_MARK (results->rawbuf[offset++], WHYNTER_BIT_MARK  ))  return false ;
+	if (!MATCH_SPACE(results->rawbuf[offset++], WHYNTER_ZERO_SPACE))  return false ;
+
+	// header mark and space
+	if (!MATCH_MARK (results->rawbuf[offset++], WHYNTER_HDR_MARK ))  return false ;
+	if (!MATCH_SPACE(results->rawbuf[offset++], WHYNTER_HDR_SPACE))  return false ;
+
+	// data bits
+	for (int i = 0;  i < WHYNTER_BITS;  i++) {
+		if (!MATCH_MARK(results->rawbuf[offset++], WHYNTER_BIT_MARK))  return false ;
+
+		if      (MATCH_SPACE(results->rawbuf[offset], WHYNTER_ONE_SPACE ))  data = (data << 1) | 1 ;
+		else if (MATCH_SPACE(results->rawbuf[offset], WHYNTER_ZERO_SPACE))  data = (data << 1) | 0 ;
+		else                                                                return false ;
+		offset++;
+	}
+
+	// trailing mark
+	if (!MATCH_MARK(results->rawbuf[offset], WHYNTER_BIT_MARK))  return false ;
+
+	// Success
+	results->bits = WHYNTER_BITS;
+	results->value = data;
+	results->decode_type = WHYNTER;
+	return true;
+}
+#endif
+

lib/Arduino-IRremote/keywords.txt

@@ -0,0 +1,53 @@
+#######################################
+# Syntax Coloring Map For IRremote
+#######################################
+
+#######################################
+# Datatypes (KEYWORD1)
+#######################################
+
+decode_results	KEYWORD1
+IRrecv	KEYWORD1
+IRsend	KEYWORD1
+
+#######################################
+# Methods and Functions (KEYWORD2)
+#######################################
+
+blink13	KEYWORD2
+decode	KEYWORD2
+enableIRIn	KEYWORD2
+resume	KEYWORD2
+enableIROut	KEYWORD2
+sendNEC	KEYWORD2
+sendSony	KEYWORD2
+sendSanyo KEYWORD2
+sendMitsubishi KEYWORD2
+sendRaw	KEYWORD2
+sendRC5	KEYWORD2
+sendRC6	KEYWORD2
+sendDISH KEYWORD2
+sendSharp KEYWORD2
+sendSharpRaw KEYWORD2
+sendPanasonic KEYWORD2
+sendJVC KEYWORD2
+sendLG KEYWORD2
+
+#######################################
+# Constants (LITERAL1)
+#######################################
+
+NEC	LITERAL1
+SONY	LITERAL1
+SANYO LITERAL1
+MITSUBISHI LITERAL1
+RC5	LITERAL1
+RC6	LITERAL1
+DISH LITERAL1
+SHARP LITERAL1
+PANASONIC LITERAL1
+JVC LITERAL1
+LG LITERAL1
+AIWA_RC_T501 LITERAL1
+UNKNOWN	LITERAL1
+REPEAT	LITERAL1

lib/Arduino-IRremote/library.json

@@ -0,0 +1,24 @@
+{
+  "name": "IRremote",
+  "keywords": "infrared, ir, remote",
+  "description": "Send and receive infrared signals with multiple protocols",
+  "repository":
+  {
+    "type": "git",
+    "url": "https://github.com/z3t0/Arduino-IRremote.git"
+  },
+  "version": "2.3.3",
+  "frameworks": "arduino",
+  "platforms": "atmelavr",
+  "authors" :
+  [
+     {
+       "name":"Rafi Khan",
+       "email":"zetoslab@gmail.com"
+     },
+     {
+       "name":"Ken Shirriff",
+       "email":"ken.shirriff@gmail.com"
+     }
+  ]
+}

lib/Arduino-IRremote/library.properties

@@ -0,0 +1,9 @@
+name=IRremote
+version=2.2.3
+author=shirriff
+maintainer=shirriff
+sentence=Send and receive infrared signals with multiple protocols
+paragraph=Send and receive infrared signals with multiple protocols
+category=Signal Input/Output
+url=https://github.com/shirriff/Arduino-IRremote.git
+architectures=*

lib/DHT-sensor-library/.github/ISSUE_TEMPLATE.md

@@ -0,0 +1,46 @@
+Thank you for opening an issue on an Adafruit Arduino library repository.  To
+improve the speed of resolution please review the following guidelines and
+common troubleshooting steps below before creating the issue:
+
+- **Do not use GitHub issues for troubleshooting projects and issues.**  Instead use
+  the forums at http://forums.adafruit.com to ask questions and troubleshoot why
+  something isn't working as expected.  In many cases the problem is a common issue
+  that you will more quickly receive help from the forum community.  GitHub issues
+  are meant for known defects in the code.  If you don't know if there is a defect
+  in the code then start with troubleshooting on the forum first.
+
+- **If following a tutorial or guide be sure you didn't miss a step.** Carefully
+  check all of the steps and commands to run have been followed.  Consult the
+  forum if you're unsure or have questions about steps in a guide/tutorial.
+
+- **For Arduino projects check these very common issues to ensure they don't apply**:
+
+  - For uploading sketches or communicating with the board make sure you're using
+    a **USB data cable** and **not** a **USB charge-only cable**.  It is sometimes
+    very hard to tell the difference between a data and charge cable!  Try using the
+    cable with other devices or swapping to another cable to confirm it is not
+    the problem.
+
+  - **Be sure you are supplying adequate power to the board.**  Check the specs of
+    your board and plug in an external power supply.  In many cases just
+    plugging a board into your computer is not enough to power it and other
+    peripherals.
+
+  - **Double check all soldering joints and connections.**  Flakey connections
+    cause many mysterious problems.  See the [guide to excellent soldering](https://learn.adafruit.com/adafruit-guide-excellent-soldering/tools) for examples of good solder joints.
+
+  - **Ensure you are using an official Arduino or Adafruit board.** We can't
+    guarantee a clone board will have the same functionality and work as expected
+    with this code and don't support them.
+
+If you're sure this issue is a defect in the code and checked the steps above
+please fill in the following fields to provide enough troubleshooting information.
+You may delete the guideline and text above to just leave the following details:
+
+- Arduino board:  **INSERT ARDUINO BOARD NAME/TYPE HERE**
+
+- Arduino IDE version (found in Arduino -> About Arduino menu):  **INSERT ARDUINO
+  VERSION HERE**
+
+- List the steps to reproduce the problem below (if possible attach a sketch or
+  copy the sketch code in too): **LIST REPRO STEPS BELOW**

lib/DHT-sensor-library/.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,26 @@
+Thank you for creating a pull request to contribute to Adafruit's GitHub code!
+Before you open the request please review the following guidelines and tips to
+help it be more easily integrated:
+
+- **Describe the scope of your change--i.e. what the change does and what parts
+  of the code were modified.**  This will help us understand any risks of integrating
+  the code.
+
+- **Describe any known limitations with your change.**  For example if the change
+  doesn't apply to a supported platform of the library please mention it.
+
+- **Please run any tests or examples that can exercise your modified code.**  We
+  strive to not break users of the code and running tests/examples helps with this
+  process.
+
+Thank you again for contributing!  We will try to test and integrate the change
+as soon as we can, but be aware we have many GitHub repositories to manage and
+can't immediately respond to every request.  There is no need to bump or check in
+on a pull request (it will clutter the discussion of the request).
+
+Also don't be worried if the request is closed or not integrated--sometimes the
+priorities of Adafruit's GitHub code (education, ease of use) might not match the
+priorities of the pull request.  Don't fret, the open source community thrives on
+forks and GitHub makes it easy to keep your changes in a forked repo.
+
+After reviewing the guidelines above you can delete this text from the pull request.

lib/DHT-sensor-library/DHT.cpp

@@ -0,0 +1,259 @@
+/* DHT library
+
+MIT license
+written by Adafruit Industries
+*/
+
+#include "DHT.h"
+
+#define MIN_INTERVAL 2000
+
+DHT::DHT(uint8_t pin, uint8_t type, uint8_t count) {
+  _pin = pin;
+  _type = type;
+  #ifdef __AVR
+    _bit = digitalPinToBitMask(pin);
+    _port = digitalPinToPort(pin);
+  #endif
+  _maxcycles = microsecondsToClockCycles(1000);  // 1 millisecond timeout for
+                                                 // reading pulses from DHT sensor.
+  // Note that count is now ignored as the DHT reading algorithm adjusts itself
+  // basd on the speed of the processor.
+}
+
+void DHT::begin(void) {
+  // set up the pins!
+  pinMode(_pin, INPUT_PULLUP);
+  // Using this value makes sure that millis() - lastreadtime will be
+  // >= MIN_INTERVAL right away. Note that this assignment wraps around,
+  // but so will the subtraction.
+  _lastreadtime = -MIN_INTERVAL;
+  DEBUG_PRINT("Max clock cycles: "); DEBUG_PRINTLN(_maxcycles, DEC);
+}
+
+//boolean S == Scale.  True == Fahrenheit; False == Celcius
+float DHT::readTemperature(bool S, bool force) {
+  float f = NAN;
+
+  if (read(force)) {
+    switch (_type) {
+    case DHT11:
+      f = data[2];
+      if(S) {
+        f = convertCtoF(f);
+      }
+      break;
+    case DHT22:
+    case DHT21:
+      f = data[2] & 0x7F;
+      f *= 256;
+      f += data[3];
+      f *= 0.1;
+      if (data[2] & 0x80) {
+        f *= -1;
+      }
+      if(S) {
+        f = convertCtoF(f);
+      }
+      break;
+    }
+  }
+  return f;
+}
+
+float DHT::convertCtoF(float c) {
+  return c * 1.8 + 32;
+}
+
+float DHT::convertFtoC(float f) {
+  return (f - 32) * 0.55555;
+}
+
+float DHT::readHumidity(bool force) {
+  float f = NAN;
+  if (read()) {
+    switch (_type) {
+    case DHT11:
+      f = data[0];
+      break;
+    case DHT22:
+    case DHT21:
+      f = data[0];
+      f *= 256;
+      f += data[1];
+      f *= 0.1;
+      break;
+    }
+  }
+  return f;
+}
+
+//boolean isFahrenheit: True == Fahrenheit; False == Celcius
+float DHT::computeHeatIndex(float temperature, float percentHumidity, bool isFahrenheit) {
+  // Using both Rothfusz and Steadman's equations
+  // http://www.wpc.ncep.noaa.gov/html/heatindex_equation.shtml
+  float hi;
+
+  if (!isFahrenheit)
+    temperature = convertCtoF(temperature);
+
+  hi = 0.5 * (temperature + 61.0 + ((temperature - 68.0) * 1.2) + (percentHumidity * 0.094));
+
+  if (hi > 79) {
+    hi = -42.379 +
+             2.04901523 * temperature +
+            10.14333127 * percentHumidity +
+            -0.22475541 * temperature*percentHumidity +
+            -0.00683783 * pow(temperature, 2) +
+            -0.05481717 * pow(percentHumidity, 2) +
+             0.00122874 * pow(temperature, 2) * percentHumidity +
+             0.00085282 * temperature*pow(percentHumidity, 2) +
+            -0.00000199 * pow(temperature, 2) * pow(percentHumidity, 2);
+
+    if((percentHumidity < 13) && (temperature >= 80.0) && (temperature <= 112.0))
+      hi -= ((13.0 - percentHumidity) * 0.25) * sqrt((17.0 - abs(temperature - 95.0)) * 0.05882);
+
+    else if((percentHumidity > 85.0) && (temperature >= 80.0) && (temperature <= 87.0))
+      hi += ((percentHumidity - 85.0) * 0.1) * ((87.0 - temperature) * 0.2);
+  }
+
+  return isFahrenheit ? hi : convertFtoC(hi);
+}
+
+boolean DHT::read(bool force) {
+  // Check if sensor was read less than two seconds ago and return early
+  // to use last reading.
+  uint32_t currenttime = millis();
+  if (!force && ((currenttime - _lastreadtime) < 2000)) {
+    return _lastresult; // return last correct measurement
+  }
+  _lastreadtime = currenttime;
+
+  // Reset 40 bits of received data to zero.
+  data[0] = data[1] = data[2] = data[3] = data[4] = 0;
+
+  // Send start signal.  See DHT datasheet for full signal diagram:
+  //   http://www.adafruit.com/datasheets/Digital%20humidity%20and%20temperature%20sensor%20AM2302.pdf
+
+  // Go into high impedence state to let pull-up raise data line level and
+  // start the reading process.
+  digitalWrite(_pin, HIGH);
+  delay(250);
+
+  // First set data line low for 20 milliseconds.
+  pinMode(_pin, OUTPUT);
+  digitalWrite(_pin, LOW);
+  delay(20);
+
+  uint32_t cycles[80];
+  {
+    // Turn off interrupts temporarily because the next sections are timing critical
+    // and we don't want any interruptions.
+    InterruptLock lock;
+
+    // End the start signal by setting data line high for 40 microseconds.
+    digitalWrite(_pin, HIGH);
+    delayMicroseconds(40);
+
+    // Now start reading the data line to get the value from the DHT sensor.
+    pinMode(_pin, INPUT_PULLUP);
+    delayMicroseconds(10);  // Delay a bit to let sensor pull data line low.
+
+    // First expect a low signal for ~80 microseconds followed by a high signal
+    // for ~80 microseconds again.
+    if (expectPulse(LOW) == 0) {
+      DEBUG_PRINTLN(F("Timeout waiting for start signal low pulse."));
+      _lastresult = false;
+      return _lastresult;
+    }
+    if (expectPulse(HIGH) == 0) {
+      DEBUG_PRINTLN(F("Timeout waiting for start signal high pulse."));
+      _lastresult = false;
+      return _lastresult;
+    }
+
+    // Now read the 40 bits sent by the sensor.  Each bit is sent as a 50
+    // microsecond low pulse followed by a variable length high pulse.  If the
+    // high pulse is ~28 microseconds then it's a 0 and if it's ~70 microseconds
+    // then it's a 1.  We measure the cycle count of the initial 50us low pulse
+    // and use that to compare to the cycle count of the high pulse to determine
+    // if the bit is a 0 (high state cycle count < low state cycle count), or a
+    // 1 (high state cycle count > low state cycle count). Note that for speed all
+    // the pulses are read into a array and then examined in a later step.
+    for (int i=0; i<80; i+=2) {
+      cycles[i]   = expectPulse(LOW);
+      cycles[i+1] = expectPulse(HIGH);
+    }
+  } // Timing critical code is now complete.
+
+  // Inspect pulses and determine which ones are 0 (high state cycle count < low
+  // state cycle count), or 1 (high state cycle count > low state cycle count).
+  for (int i=0; i<40; ++i) {
+    uint32_t lowCycles  = cycles[2*i];
+    uint32_t highCycles = cycles[2*i+1];
+    if ((lowCycles == 0) || (highCycles == 0)) {
+      DEBUG_PRINTLN(F("Timeout waiting for pulse."));
+      _lastresult = false;
+      return _lastresult;
+    }
+    data[i/8] <<= 1;
+    // Now compare the low and high cycle times to see if the bit is a 0 or 1.
+    if (highCycles > lowCycles) {
+      // High cycles are greater than 50us low cycle count, must be a 1.
+      data[i/8] |= 1;
+    }
+    // Else high cycles are less than (or equal to, a weird case) the 50us low
+    // cycle count so this must be a zero.  Nothing needs to be changed in the
+    // stored data.
+  }
+
+  DEBUG_PRINTLN(F("Received:"));
+  DEBUG_PRINT(data[0], HEX); DEBUG_PRINT(F(", "));
+  DEBUG_PRINT(data[1], HEX); DEBUG_PRINT(F(", "));
+  DEBUG_PRINT(data[2], HEX); DEBUG_PRINT(F(", "));
+  DEBUG_PRINT(data[3], HEX); DEBUG_PRINT(F(", "));
+  DEBUG_PRINT(data[4], HEX); DEBUG_PRINT(F(" =? "));
+  DEBUG_PRINTLN((data[0] + data[1] + data[2] + data[3]) & 0xFF, HEX);
+
+  // Check we read 40 bits and that the checksum matches.
+  if (data[4] == ((data[0] + data[1] + data[2] + data[3]) & 0xFF)) {
+    _lastresult = true;
+    return _lastresult;
+  }
+  else {
+    DEBUG_PRINTLN(F("Checksum failure!"));
+    _lastresult = false;
+    return _lastresult;
+  }
+}
+
+// Expect the signal line to be at the specified level for a period of time and
+// return a count of loop cycles spent at that level (this cycle count can be
+// used to compare the relative time of two pulses).  If more than a millisecond
+// ellapses without the level changing then the call fails with a 0 response.
+// This is adapted from Arduino's pulseInLong function (which is only available
+// in the very latest IDE versions):
+//   https://github.com/arduino/Arduino/blob/master/hardware/arduino/avr/cores/arduino/wiring_pulse.c
+uint32_t DHT::expectPulse(bool level) {
+  uint32_t count = 0;
+  // On AVR platforms use direct GPIO port access as it's much faster and better
+  // for catching pulses that are 10's of microseconds in length:
+  #ifdef __AVR
+    uint8_t portState = level ? _bit : 0;
+    while ((*portInputRegister(_port) & _bit) == portState) {
+      if (count++ >= _maxcycles) {
+        return 0; // Exceeded timeout, fail.
+      }
+    }
+  // Otherwise fall back to using digitalRead (this seems to be necessary on ESP8266
+  // right now, perhaps bugs in direct port access functions?).
+  #else
+    while (digitalRead(_pin) == level) {
+      if (count++ >= _maxcycles) {
+        return 0; // Exceeded timeout, fail.
+      }
+    }
+  #endif
+
+  return count;
+}

lib/DHT-sensor-library/DHT.h

@@ -0,0 +1,75 @@
+/* DHT library
+
+MIT license
+written by Adafruit Industries
+*/
+#ifndef DHT_H
+#define DHT_H
+
+#if ARDUINO >= 100
+ #include "Arduino.h"
+#else
+ #include "WProgram.h"
+#endif
+
+
+// Uncomment to enable printing out nice debug messages.
+//#define DHT_DEBUG
+
+// Define where debug output will be printed.
+#define DEBUG_PRINTER Serial
+
+// Setup debug printing macros.
+#ifdef DHT_DEBUG
+  #define DEBUG_PRINT(...) { DEBUG_PRINTER.print(__VA_ARGS__); }
+  #define DEBUG_PRINTLN(...) { DEBUG_PRINTER.println(__VA_ARGS__); }
+#else
+  #define DEBUG_PRINT(...) {}
+  #define DEBUG_PRINTLN(...) {}
+#endif
+
+// Define types of sensors.
+#define DHT11 11
+#define DHT22 22
+#define DHT21 21
+#define AM2301 21
+
+
+class DHT {
+  public:
+   DHT(uint8_t pin, uint8_t type, uint8_t count=6);
+   void begin(void);
+   float readTemperature(bool S=false, bool force=false);
+   float convertCtoF(float);
+   float convertFtoC(float);
+   float computeHeatIndex(float temperature, float percentHumidity, bool isFahrenheit=true);
+   float readHumidity(bool force=false);
+   boolean read(bool force=false);
+
+ private:
+  uint8_t data[5];
+  uint8_t _pin, _type;
+  #ifdef __AVR
+    // Use direct GPIO access on an 8-bit AVR so keep track of the port and bitmask
+    // for the digital pin connected to the DHT.  Other platforms will use digitalRead.
+    uint8_t _bit, _port;
+  #endif
+  uint32_t _lastreadtime, _maxcycles;
+  bool _lastresult;
+
+  uint32_t expectPulse(bool level);
+
+};
+
+class InterruptLock {
+  public:
+   InterruptLock() {
+    noInterrupts();
+   }
+   ~InterruptLock() {
+    interrupts();
+   }
+
+};
+
+#endif

lib/DHT-sensor-library/DHT_U.cpp

@@ -0,0 +1,179 @@
+// DHT Temperature & Humidity Unified Sensor Library
+// Copyright (c) 2014 Adafruit Industries
+// Author: Tony DiCola
+
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+#include "DHT_U.h"
+
+DHT_Unified::DHT_Unified(uint8_t pin, uint8_t type, uint8_t count, int32_t tempSensorId, int32_t humiditySensorId):
+  _dht(pin, type, count),
+  _type(type),
+  _temp(this, tempSensorId),
+  _humidity(this, humiditySensorId)
+{}
+
+void DHT_Unified::begin() {
+  _dht.begin();
+}
+
+void DHT_Unified::setName(sensor_t* sensor) {
+  switch(_type) {
+    case DHT11:
+      strncpy(sensor->name, "DHT11", sizeof(sensor->name) - 1);
+      break;
+    case DHT21:
+      strncpy(sensor->name, "DHT21", sizeof(sensor->name) - 1);
+      break;
+    case DHT22:
+      strncpy(sensor->name, "DHT22", sizeof(sensor->name) - 1);
+      break;
+    default:
+      // TODO: Perhaps this should be an error?  However main DHT library doesn't enforce
+      // restrictions on the sensor type value.  Pick a generic name for now.
+      strncpy(sensor->name, "DHT?", sizeof(sensor->name) - 1);
+      break;
+  }
+  sensor->name[sizeof(sensor->name)- 1] = 0;
+}
+
+void DHT_Unified::setMinDelay(sensor_t* sensor) {
+  switch(_type) {
+    case DHT11:
+      sensor->min_delay = 1000000L;  // 1 second (in microseconds)
+      break;
+    case DHT21:
+      sensor->min_delay = 2000000L;  // 2 seconds (in microseconds)
+      break;
+    case DHT22:
+      sensor->min_delay = 2000000L;  // 2 seconds (in microseconds)
+      break;
+    default:
+      // Default to slowest sample rate in case of unknown type.
+      sensor->min_delay = 2000000L;  // 2 seconds (in microseconds)
+      break;
+  }
+}
+
+DHT_Unified::Temperature::Temperature(DHT_Unified* parent, int32_t id):
+  _parent(parent),
+  _id(id)
+{}
+
+bool DHT_Unified::Temperature::getEvent(sensors_event_t* event) {
+  // Clear event definition.
+  memset(event, 0, sizeof(sensors_event_t));
+  // Populate sensor reading values.
+  event->version     = sizeof(sensors_event_t);
+  event->sensor_id   = _id;
+  event->type        = SENSOR_TYPE_AMBIENT_TEMPERATURE;
+  event->timestamp   = millis();
+  event->temperature = _parent->_dht.readTemperature();
+  
+  return true;
+}
+
+void DHT_Unified::Temperature::getSensor(sensor_t* sensor) {
+  // Clear sensor definition.
+  memset(sensor, 0, sizeof(sensor_t));
+  // Set sensor name.
+  _parent->setName(sensor);
+  // Set version and ID
+  sensor->version         = DHT_SENSOR_VERSION;
+  sensor->sensor_id       = _id;
+  // Set type and characteristics.
+  sensor->type            = SENSOR_TYPE_AMBIENT_TEMPERATURE;
+  _parent->setMinDelay(sensor);
+  switch (_parent->_type) {
+    case DHT11:
+      sensor->max_value   = 50.0F;
+      sensor->min_value   = 0.0F;
+      sensor->resolution  = 2.0F;
+      break;
+    case DHT21:
+      sensor->max_value   = 80.0F;
+      sensor->min_value   = -40.0F;
+      sensor->resolution  = 0.1F;
+      break;
+    case DHT22:
+      sensor->max_value   = 125.0F;
+      sensor->min_value   = -40.0F;
+      sensor->resolution  = 0.1F;
+      break;
+    default:
+      // Unknown type, default to 0.
+      sensor->max_value   = 0.0F;
+      sensor->min_value   = 0.0F;
+      sensor->resolution  = 0.0F;
+      break;
+  }
+}
+
+DHT_Unified::Humidity::Humidity(DHT_Unified* parent, int32_t id):
+  _parent(parent),
+  _id(id)
+{}
+
+bool DHT_Unified::Humidity::getEvent(sensors_event_t* event) {
+  // Clear event definition.
+  memset(event, 0, sizeof(sensors_event_t));
+  // Populate sensor reading values.
+  event->version           = sizeof(sensors_event_t);
+  event->sensor_id         = _id;
+  event->type              = SENSOR_TYPE_RELATIVE_HUMIDITY;
+  event->timestamp         = millis();
+  event->relative_humidity = _parent->_dht.readHumidity();
+  
+  return true;
+}
+
+void DHT_Unified::Humidity::getSensor(sensor_t* sensor) {
+  // Clear sensor definition.
+  memset(sensor, 0, sizeof(sensor_t));
+  // Set sensor name.
+  _parent->setName(sensor);
+  // Set version and ID
+  sensor->version         = DHT_SENSOR_VERSION;
+  sensor->sensor_id       = _id;
+  // Set type and characteristics.
+  sensor->type            = SENSOR_TYPE_RELATIVE_HUMIDITY;
+  _parent->setMinDelay(sensor);
+  switch (_parent->_type) {
+    case DHT11:
+      sensor->max_value   = 80.0F;
+      sensor->min_value   = 20.0F;
+      sensor->resolution  = 5.0F;
+      break;
+    case DHT21:
+      sensor->max_value   = 100.0F;
+      sensor->min_value   = 0.0F;
+      sensor->resolution  = 0.1F;
+      break;
+    case DHT22:
+      sensor->max_value   = 100.0F;
+      sensor->min_value   = 0.0F;
+      sensor->resolution  = 0.1F;
+      break;
+    default:
+      // Unknown type, default to 0.
+      sensor->max_value   = 0.0F;
+      sensor->min_value   = 0.0F;
+      sensor->resolution  = 0.0F;
+      break;
+  }
+}

lib/DHT-sensor-library/DHT_U.h

@@ -0,0 +1,78 @@
+// DHT Temperature & Humidity Unified Sensor Library
+// Copyright (c) 2014 Adafruit Industries
+// Author: Tony DiCola
+
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+#ifndef DHT_U_H
+#define DHT_U_H
+
+#include <Adafruit_Sensor.h>
+#include <DHT.h>
+
+#define DHT_SENSOR_VERSION 1
+
+class DHT_Unified {
+public:
+  DHT_Unified(uint8_t pin, uint8_t type, uint8_t count=6, int32_t tempSensorId=-1, int32_t humiditySensorId=-1);
+  void begin();
+
+  class Temperature : public Adafruit_Sensor {
+  public:
+    Temperature(DHT_Unified* parent, int32_t id);
+    bool getEvent(sensors_event_t* event);
+    void getSensor(sensor_t* sensor);
+
+  private:
+    DHT_Unified* _parent;
+    int32_t _id;
+
+  };
+
+  class Humidity : public Adafruit_Sensor {
+  public:
+    Humidity(DHT_Unified* parent, int32_t id);
+    bool getEvent(sensors_event_t* event);
+    void getSensor(sensor_t* sensor);
+
+  private:
+    DHT_Unified* _parent;
+    int32_t _id;
+
+  };
+
+  Temperature temperature() {
+    return _temp;
+  }
+
+  Humidity humidity() {
+    return _humidity;
+  }
+
+private:
+  DHT _dht;
+  uint8_t _type;
+  Temperature _temp;
+  Humidity _humidity;
+
+  void setName(sensor_t* sensor);
+  void setMinDelay(sensor_t* sensor);
+
+};
+
+#endif

lib/DHT-sensor-library/README.md

@@ -0,0 +1,15 @@
+This is an Arduino library for the DHT series of low cost temperature/humidity sensors.
+
+Tutorial: https://learn.adafruit.com/dht
+
+To download. click the DOWNLOADS button in the top right corner, rename the uncompressed folder DHT. Check that the DHT folder contains DHT.cpp and DHT.h. Place the DHT library folder your <arduinosketchfolder>/libraries/ folder. You may need to create the libraries subfolder if its your first library. Restart the IDE.
+
+# Adafruit DHT Humidity & Temperature Unified Sensor Library
+
+This library also includes an optional class for the
+[DHT humidity and temperature sensor](https://learn.adafruit.com/dht/overview)
+which is designed to work with the [Adafruit unified sensor library](https://learn.adafruit.com/using-the-adafruit-unified-sensor-driver/introduction).
+
+You must have the following Arduino libraries installed to use this class:
+
+- [Adafruit Unified Sensor Library](https://github.com/adafruit/Adafruit_Sensor)

lib/DHT-sensor-library/examples/DHT_Unified_Sensor/DHT_Unified_Sensor.ino

@@ -0,0 +1,84 @@
+// DHT Temperature & Humidity Sensor
+// Unified Sensor Library Example
+// Written by Tony DiCola for Adafruit Industries
+// Released under an MIT license.
+
+// Depends on the following Arduino libraries:
+// - Adafruit Unified Sensor Library: https://github.com/adafruit/Adafruit_Sensor
+// - DHT Sensor Library: https://github.com/adafruit/DHT-sensor-library
+
+#include <Adafruit_Sensor.h>
+#include <DHT.h>
+#include <DHT_U.h>
+
+#define DHTPIN            2         // Pin which is connected to the DHT sensor.
+
+// Uncomment the type of sensor in use:
+//#define DHTTYPE           DHT11     // DHT 11 
+#define DHTTYPE           DHT22     // DHT 22 (AM2302)
+//#define DHTTYPE           DHT21     // DHT 21 (AM2301)
+
+// See guide for details on sensor wiring and usage:
+//   https://learn.adafruit.com/dht/overview
+
+DHT_Unified dht(DHTPIN, DHTTYPE);
+
+uint32_t delayMS;
+
+void setup() {
+  Serial.begin(9600); 
+  // Initialize device.
+  dht.begin();
+  Serial.println("DHTxx Unified Sensor Example");
+  // Print temperature sensor details.
+  sensor_t sensor;
+  dht.temperature().getSensor(&sensor);
+  Serial.println("------------------------------------");
+  Serial.println("Temperature");
+  Serial.print  ("Sensor:       "); Serial.println(sensor.name);
+  Serial.print  ("Driver Ver:   "); Serial.println(sensor.version);
+  Serial.print  ("Unique ID:    "); Serial.println(sensor.sensor_id);
+  Serial.print  ("Max Value:    "); Serial.print(sensor.max_value); Serial.println(" *C");
+  Serial.print  ("Min Value:    "); Serial.print(sensor.min_value); Serial.println(" *C");
+  Serial.print  ("Resolution:   "); Serial.print(sensor.resolution); Serial.println(" *C");  
+  Serial.println("------------------------------------");
+  // Print humidity sensor details.
+  dht.humidity().getSensor(&sensor);
+  Serial.println("------------------------------------");
+  Serial.println("Humidity");
+  Serial.print  ("Sensor:       "); Serial.println(sensor.name);
+  Serial.print  ("Driver Ver:   "); Serial.println(sensor.version);
+  Serial.print  ("Unique ID:    "); Serial.println(sensor.sensor_id);
+  Serial.print  ("Max Value:    "); Serial.print(sensor.max_value); Serial.println("%");
+  Serial.print  ("Min Value:    "); Serial.print(sensor.min_value); Serial.println("%");
+  Serial.print  ("Resolution:   "); Serial.print(sensor.resolution); Serial.println("%");  
+  Serial.println("------------------------------------");
+  // Set delay between sensor readings based on sensor details.
+  delayMS = sensor.min_delay / 1000;
+}
+
+void loop() {
+  // Delay between measurements.
+  delay(delayMS);
+  // Get temperature event and print its value.
+  sensors_event_t event;  
+  dht.temperature().getEvent(&event);
+  if (isnan(event.temperature)) {
+    Serial.println("Error reading temperature!");
+  }
+  else {
+    Serial.print("Temperature: ");
+    Serial.print(event.temperature);
+    Serial.println(" *C");
+  }
+  // Get humidity event and print its value.
+  dht.humidity().getEvent(&event);
+  if (isnan(event.relative_humidity)) {
+    Serial.println("Error reading humidity!");
+  }
+  else {
+    Serial.print("Humidity: ");
+    Serial.print(event.relative_humidity);
+    Serial.println("%");
+  }
+}

lib/DHT-sensor-library/examples/DHTtester/DHTtester.ino

@@ -0,0 +1,69 @@
+// Example testing sketch for various DHT humidity/temperature sensors
+// Written by ladyada, public domain
+
+#include "DHT.h"
+
+#define DHTPIN 2     // what digital pin we're connected to
+
+// Uncomment whatever type you're using!
+//#define DHTTYPE DHT11   // DHT 11
+#define DHTTYPE DHT22   // DHT 22  (AM2302), AM2321
+//#define DHTTYPE DHT21   // DHT 21 (AM2301)
+
+// Connect pin 1 (on the left) of the sensor to +5V
+// NOTE: If using a board with 3.3V logic like an Arduino Due connect pin 1
+// to 3.3V instead of 5V!
+// Connect pin 2 of the sensor to whatever your DHTPIN is
+// Connect pin 4 (on the right) of the sensor to GROUND
+// Connect a 10K resistor from pin 2 (data) to pin 1 (power) of the sensor
+
+// Initialize DHT sensor.
+// Note that older versions of this library took an optional third parameter to
+// tweak the timings for faster processors.  This parameter is no longer needed
+// as the current DHT reading algorithm adjusts itself to work on faster procs.
+DHT dht(DHTPIN, DHTTYPE);
+
+void setup() {
+  Serial.begin(9600);
+  Serial.println("DHTxx test!");
+
+  dht.begin();
+}
+
+void loop() {
+  // Wait a few seconds between measurements.
+  delay(2000);
+
+  // Reading temperature or humidity takes about 250 milliseconds!
+  // Sensor readings may also be up to 2 seconds 'old' (its a very slow sensor)
+  float h = dht.readHumidity();
+  // Read temperature as Celsius (the default)
+  float t = dht.readTemperature();
+  // Read temperature as Fahrenheit (isFahrenheit = true)
+  float f = dht.readTemperature(true);
+
+  // Check if any reads failed and exit early (to try again).
+  if (isnan(h) || isnan(t) || isnan(f)) {
+    Serial.println("Failed to read from DHT sensor!");
+    return;
+  }
+
+  // Compute heat index in Fahrenheit (the default)
+  float hif = dht.computeHeatIndex(f, h);
+  // Compute heat index in Celsius (isFahreheit = false)
+  float hic = dht.computeHeatIndex(t, h, false);
+
+  Serial.print("Humidity: ");
+  Serial.print(h);
+  Serial.print(" %\t");
+  Serial.print("Temperature: ");
+  Serial.print(t);
+  Serial.print(" *C ");
+  Serial.print(f);
+  Serial.print(" *F\t");
+  Serial.print("Heat index: ");
+  Serial.print(hic);
+  Serial.print(" *C ");
+  Serial.print(hif);
+  Serial.println(" *F");
+}

lib/DHT-sensor-library/keywords.txt

@@ -0,0 +1,22 @@
+###########################################
+# Syntax Coloring Map For DHT-sensor-library
+###########################################
+
+###########################################
+# Datatypes (KEYWORD1)
+###########################################
+
+DHT	KEYWORD1
+
+###########################################
+# Methods and Functions (KEYWORD2)
+###########################################
+
+begin KEYWORD2
+readTemperature KEYWORD2
+convertCtoF KEYWORD2
+convertFtoC KEYWORD2
+computeHeatIndex KEYWORD2
+readHumidity KEYWORD2
+read KEYWORD2
+

lib/DHT-sensor-library/library.properties

@@ -0,0 +1,9 @@
+name=DHT sensor library
+version=1.3.0
+author=Adafruit
+maintainer=Adafruit <info@adafruit.com>
+sentence=Arduino library for DHT11, DHT22, etc Temp & Humidity Sensors
+paragraph=Arduino library for DHT11, DHT22, etc Temp & Humidity Sensors
+category=Sensors
+url=https://github.com/adafruit/DHT-sensor-library
+architectures=*

lib/ESP32_BLE_Arduino/README.md

@@ -0,0 +1,15 @@
+# ESP32 BLE for Arduino
+The Arduino IDE provides an excellent library package managed where versions of libraries can be downloaded and installed.  This Github project provides the repository for the ESP32 BLE support for Arduino.
+
+The actual source of the project which is being maintained can be found here:
+
+https://github.com/nkolban/esp32-snippets
+
+Issues and questions should be raised here:
+
+https://github.com/nkolban/esp32-snippets/issues
+
+
+Documentation for using the library can be found here:
+
+https://github.com/nkolban/esp32-snippets/tree/master/Documentation

lib/ESP32_BLE_Arduino/examples/BLE_client/BLE_client.ino

@@ -0,0 +1,134 @@
+/**
+ * A BLE client example that is rich in capabilities.
+ */
+
+#include "BLEDevice.h"
+//#include "BLEScan.h"
+
+// The remote service we wish to connect to.
+static BLEUUID serviceUUID("91bad492-b950-4226-aa2b-4ede9fa42f59");
+// The characteristic of the remote service we are interested in.
+static BLEUUID    charUUID("0d563a58-196a-48ce-ace2-dfec78acc814");
+
+static BLEAddress *pServerAddress;
+static boolean doConnect = false;
+static boolean connected = false;
+static BLERemoteCharacteristic* pRemoteCharacteristic;
+
+static void notifyCallback(
+  BLERemoteCharacteristic* pBLERemoteCharacteristic,
+  uint8_t* pData,
+  size_t length,
+  bool isNotify) {
+    Serial.print("Notify callback for characteristic ");
+    Serial.print(pBLERemoteCharacteristic->getUUID().toString().c_str());
+    Serial.print(" of data length ");
+    Serial.println(length);
+}
+
+bool connectToServer(BLEAddress pAddress) {
+    Serial.print("Forming a connection to ");
+    Serial.println(pAddress.toString().c_str());
+    
+    BLEClient*  pClient  = BLEDevice::createClient();
+    Serial.println(" - Created client");
+
+    // Connect to the remove BLE Server.
+    pClient->connect(pAddress);
+    Serial.println(" - Connected to server");
+
+    // Obtain a reference to the service we are after in the remote BLE server.
+    BLERemoteService* pRemoteService = pClient->getService(serviceUUID);
+    if (pRemoteService == nullptr) {
+      Serial.print("Failed to find our service UUID: ");
+      Serial.println(serviceUUID.toString().c_str());
+      return false;
+    }
+    Serial.println(" - Found our service");
+
+
+    // Obtain a reference to the characteristic in the service of the remote BLE server.
+    pRemoteCharacteristic = pRemoteService->getCharacteristic(charUUID);
+    if (pRemoteCharacteristic == nullptr) {
+      Serial.print("Failed to find our characteristic UUID: ");
+      Serial.println(charUUID.toString().c_str());
+      return false;
+    }
+    Serial.println(" - Found our characteristic");
+
+    // Read the value of the characteristic.
+    std::string value = pRemoteCharacteristic->readValue();
+    Serial.print("The characteristic value was: ");
+    Serial.println(value.c_str());
+
+    pRemoteCharacteristic->registerForNotify(notifyCallback);
+}
+/**
+ * Scan for BLE servers and find the first one that advertises the service we are looking for.
+ */
+class MyAdvertisedDeviceCallbacks: public BLEAdvertisedDeviceCallbacks {
+ /**
+   * Called for each advertising BLE server.
+   */
+  void onResult(BLEAdvertisedDevice advertisedDevice) {
+    Serial.print("BLE Advertised Device found: ");
+    Serial.println(advertisedDevice.toString().c_str());
+
+    // We have found a device, let us now see if it contains the service we are looking for.
+    if (advertisedDevice.haveServiceUUID() && advertisedDevice.getServiceUUID().equals(serviceUUID)) {
+
+      // 
+      Serial.print("Found our device!  address: "); 
+      advertisedDevice.getScan()->stop();
+
+      pServerAddress = new BLEAddress(advertisedDevice.getAddress());
+      doConnect = true;
+
+    } // Found our server
+  } // onResult
+}; // MyAdvertisedDeviceCallbacks
+
+
+void setup() {
+  Serial.begin(115200);
+  Serial.println("Starting Arduino BLE Client application...");
+  BLEDevice::init("");
+
+  // Retrieve a Scanner and set the callback we want to use to be informed when we
+  // have detected a new device.  Specify that we want active scanning and start the
+  // scan to run for 30 seconds.
+  BLEScan* pBLEScan = BLEDevice::getScan();
+  pBLEScan->setAdvertisedDeviceCallbacks(new MyAdvertisedDeviceCallbacks());
+  pBLEScan->setActiveScan(true);
+  pBLEScan->start(30);
+} // End of setup.
+
+
+// This is the Arduino main loop function.
+void loop() {
+
+  // If the flag "doConnect" is true then we have scanned for and found the desired
+  // BLE Server with which we wish to connect.  Now we connect to it.  Once we are 
+  // connected we set the connected flag to be true.
+  if (doConnect == true) {
+    if (connectToServer(*pServerAddress)) {
+      Serial.println("We are now connected to the BLE Server.");
+      connected = true;
+    } else {
+      Serial.println("We have failed to connect to the server; there is nothin more we will do.");
+    }
+    doConnect = false;
+  }
+
+  // If we are connected to a peer BLE Server, update the characteristic each time we are reached
+  // with the current time since boot.
+  if (connected) {
+    String newValue = "Time since boot: " + String(millis()/1000);
+    Serial.println("Setting new characteristic value to \"" + newValue + "\"");
+    
+    // Set the characteristic's value to be the array of bytes that is actually a string.
+    pRemoteCharacteristic->writeValue(newValue.c_str(), newValue.length());
+  }
+  
+  delay(1000); // Delay a second between loops.
+} // End of loop

lib/ESP32_BLE_Arduino/examples/BLE_notify/BLE_notify.ino

@@ -0,0 +1,93 @@
+/*
+    Video: https://www.youtube.com/watch?v=oCMOYS71NIU
+    Based on Neil Kolban example for IDF: https://github.com/nkolban/esp32-snippets/blob/master/cpp_utils/tests/BLE%20Tests/SampleNotify.cpp
+    Ported to Arduino ESP32 by Evandro Copercini
+
+   Create a BLE server that, once we receive a connection, will send periodic notifications.
+   The service advertises itself as: 4fafc201-1fb5-459e-8fcc-c5c9c331914b
+   And has a characteristic of: beb5483e-36e1-4688-b7f5-ea07361b26a8
+
+   The design of creating the BLE server is:
+   1. Create a BLE Server
+   2. Create a BLE Service
+   3. Create a BLE Characteristic on the Service
+   4. Create a BLE Descriptor on the characteristic
+   5. Start the service.
+   6. Start advertising.
+
+   A connect hander associated with the server starts a background task that performs notification
+   every couple of seconds.
+*/
+#include <BLEDevice.h>
+#include <BLEServer.h>
+#include <BLEUtils.h>
+#include <BLE2902.h>
+
+BLECharacteristic *pCharacteristic;
+bool deviceConnected = false;
+uint8_t value = 0;
+
+// See the following for generating UUIDs:
+// https://www.uuidgenerator.net/
+
+#define SERVICE_UUID        "4fafc201-1fb5-459e-8fcc-c5c9c331914b"
+#define CHARACTERISTIC_UUID "beb5483e-36e1-4688-b7f5-ea07361b26a8"
+
+
+class MyServerCallbacks: public BLEServerCallbacks {
+    void onConnect(BLEServer* pServer) {
+      deviceConnected = true;
+    };
+
+    void onDisconnect(BLEServer* pServer) {
+      deviceConnected = false;
+    }
+};
+
+
+
+void setup() {
+  Serial.begin(115200);
+
+  // Create the BLE Device
+  BLEDevice::init("MyESP32");
+
+  // Create the BLE Server
+  BLEServer *pServer = BLEDevice::createServer();
+  pServer->setCallbacks(new MyServerCallbacks());
+
+  // Create the BLE Service
+  BLEService *pService = pServer->createService(SERVICE_UUID);
+
+  // Create a BLE Characteristic
+  pCharacteristic = pService->createCharacteristic(
+                      CHARACTERISTIC_UUID,
+                      BLECharacteristic::PROPERTY_READ   |
+                      BLECharacteristic::PROPERTY_WRITE  |
+                      BLECharacteristic::PROPERTY_NOTIFY |
+                      BLECharacteristic::PROPERTY_INDICATE
+                    );
+
+  // https://www.bluetooth.com/specifications/gatt/viewer?attributeXmlFile=org.bluetooth.descriptor.gatt.client_characteristic_configuration.xml
+  // Create a BLE Descriptor
+  pCharacteristic->addDescriptor(new BLE2902());
+
+  // Start the service
+  pService->start();
+
+  // Start advertising
+  pServer->getAdvertising()->start();
+  Serial.println("Waiting a client connection to notify...");
+}
+
+void loop() {
+
+  if (deviceConnected) {
+    Serial.printf("*** NOTIFY: %d ***\n", value);
+    pCharacteristic->setValue(&value, 1);
+    pCharacteristic->notify();
+    //pCharacteristic->indicate();
+    value++;
+  }
+  delay(2000);
+}

lib/ESP32_BLE_Arduino/examples/BLE_scan/BLE_scan.ino

@@ -0,0 +1,36 @@
+/*
+   Based on Neil Kolban example for IDF: https://github.com/nkolban/esp32-snippets/blob/master/cpp_utils/tests/BLE%20Tests/SampleScan.cpp
+   Ported to Arduino ESP32 by Evandro Copercini
+*/
+
+#include <BLEDevice.h>
+#include <BLEUtils.h>
+#include <BLEScan.h>
+#include <BLEAdvertisedDevice.h>
+
+int scanTime = 30; //In seconds
+
+class MyAdvertisedDeviceCallbacks: public BLEAdvertisedDeviceCallbacks {
+    void onResult(BLEAdvertisedDevice advertisedDevice) {
+      Serial.printf("Advertised Device: %s \n", advertisedDevice.toString().c_str());
+    }
+};
+
+void setup() {
+  Serial.begin(115200);
+  Serial.println("Scanning...");
+
+  BLEDevice::init("");
+  BLEScan* pBLEScan = BLEDevice::getScan(); //create new scan
+  pBLEScan->setAdvertisedDeviceCallbacks(new MyAdvertisedDeviceCallbacks());
+  pBLEScan->setActiveScan(true); //active scan uses more power, but get results faster
+  BLEScanResults foundDevices = pBLEScan->start(scanTime);
+  Serial.print("Devices found: ");
+  Serial.println(foundDevices.getCount());
+  Serial.println("Scan done!");
+}
+
+void loop() {
+  // put your main code here, to run repeatedly:
+  delay(2000);
+}

lib/ESP32_BLE_Arduino/examples/BLE_server/BLE_server.ino

@@ -0,0 +1,39 @@
+/*
+    Based on Neil Kolban example for IDF: https://github.com/nkolban/esp32-snippets/blob/master/cpp_utils/tests/BLE%20Tests/SampleServer.cpp
+    Ported to Arduino ESP32 by Evandro Copercini
+*/
+
+#include <BLEDevice.h>
+#include <BLEUtils.h>
+#include <BLEServer.h>
+
+// See the following for generating UUIDs:
+// https://www.uuidgenerator.net/
+
+#define SERVICE_UUID        "4fafc201-1fb5-459e-8fcc-c5c9c331914b"
+#define CHARACTERISTIC_UUID "beb5483e-36e1-4688-b7f5-ea07361b26a8"
+
+void setup() {
+  Serial.begin(115200);
+  Serial.println("Starting BLE work!");
+
+  BLEDevice::init("MyESP32");
+  BLEServer *pServer = BLEDevice::createServer();
+  BLEService *pService = pServer->createService(SERVICE_UUID);
+  BLECharacteristic *pCharacteristic = pService->createCharacteristic(
+                                         CHARACTERISTIC_UUID,
+                                         BLECharacteristic::PROPERTY_READ |
+                                         BLECharacteristic::PROPERTY_WRITE
+                                       );
+
+  pCharacteristic->setValue("Hello World says Neil");
+  pService->start();
+  BLEAdvertising *pAdvertising = pServer->getAdvertising();
+  pAdvertising->start();
+  Serial.println("Characteristic defined! Now you can read it in your phone!");
+}
+
+void loop() {
+  // put your main code here, to run repeatedly:
+  delay(2000);
+}

lib/ESP32_BLE_Arduino/examples/BLE_uart/BLE_uart.ino

@@ -0,0 +1,111 @@
+/*
+    Video: https://www.youtube.com/watch?v=oCMOYS71NIU
+    Based on Neil Kolban example for IDF: https://github.com/nkolban/esp32-snippets/blob/master/cpp_utils/tests/BLE%20Tests/SampleNotify.cpp
+    Ported to Arduino ESP32 by Evandro Copercini
+
+   Create a BLE server that, once we receive a connection, will send periodic notifications.
+   The service advertises itself as: 6E400001-B5A3-F393-E0A9-E50E24DCCA9E
+   Has a characteristic of: 6E400002-B5A3-F393-E0A9-E50E24DCCA9E - used for receiving data with "WRITE" 
+   Has a characteristic of: 6E400003-B5A3-F393-E0A9-E50E24DCCA9E - used to send data with  "NOTIFY"
+
+   The design of creating the BLE server is:
+   1. Create a BLE Server
+   2. Create a BLE Service
+   3. Create a BLE Characteristic on the Service
+   4. Create a BLE Descriptor on the characteristic
+   5. Start the service.
+   6. Start advertising.
+
+   In this example rxValue is the data received (only accessible inside that function).
+   And txValue is the data to be sent, in this example just a byte incremented every second. 
+*/
+#include <BLEDevice.h>
+#include <BLEServer.h>
+#include <BLEUtils.h>
+#include <BLE2902.h>
+
+BLECharacteristic *pCharacteristic;
+bool deviceConnected = false;
+uint8_t txValue = 0;
+
+// See the following for generating UUIDs:
+// https://www.uuidgenerator.net/
+
+#define SERVICE_UUID           "6E400001-B5A3-F393-E0A9-E50E24DCCA9E" // UART service UUID
+#define CHARACTERISTIC_UUID_RX "6E400002-B5A3-F393-E0A9-E50E24DCCA9E"
+#define CHARACTERISTIC_UUID_TX "6E400003-B5A3-F393-E0A9-E50E24DCCA9E"
+
+
+class MyServerCallbacks: public BLEServerCallbacks {
+    void onConnect(BLEServer* pServer) {
+      deviceConnected = true;
+    };
+
+    void onDisconnect(BLEServer* pServer) {
+      deviceConnected = false;
+    }
+};
+
+class MyCallbacks: public BLECharacteristicCallbacks {
+    void onWrite(BLECharacteristic *pCharacteristic) {
+      std::string rxValue = pCharacteristic->getValue();
+
+      if (rxValue.length() > 0) {
+        Serial.println("*********");
+        Serial.print("Received Value: ");
+        for (int i = 0; i < rxValue.length(); i++)
+          Serial.print(rxValue[i]);
+
+        Serial.println();
+        Serial.println("*********");
+      }
+    }
+};
+
+
+void setup() {
+  Serial.begin(115200);
+
+  // Create the BLE Device
+  BLEDevice::init("UART Service");
+
+  // Create the BLE Server
+  BLEServer *pServer = BLEDevice::createServer();
+  pServer->setCallbacks(new MyServerCallbacks());
+
+  // Create the BLE Service
+  BLEService *pService = pServer->createService(SERVICE_UUID);
+
+  // Create a BLE Characteristic
+  pCharacteristic = pService->createCharacteristic(
+                      CHARACTERISTIC_UUID_TX,
+                      BLECharacteristic::PROPERTY_NOTIFY
+                    );
+                      
+  pCharacteristic->addDescriptor(new BLE2902());
+
+  BLECharacteristic *pCharacteristic = pService->createCharacteristic(
+                                         CHARACTERISTIC_UUID_RX,
+                                         BLECharacteristic::PROPERTY_WRITE
+                                       );
+
+  pCharacteristic->setCallbacks(new MyCallbacks());
+
+  // Start the service
+  pService->start();
+
+  // Start advertising
+  pServer->getAdvertising()->start();
+  Serial.println("Waiting a client connection to notify...");
+}
+
+void loop() {
+
+  if (deviceConnected) {
+    Serial.printf("*** Sent Value: %d ***\n", txValue);
+    pCharacteristic->setValue(&txValue, 1);
+    pCharacteristic->notify();
+    txValue++;
+  }
+  delay(1000);
+}

lib/ESP32_BLE_Arduino/examples/BLE_write/BLE_write.ino

@@ -0,0 +1,65 @@
+/*
+    Based on Neil Kolban example for IDF: https://github.com/nkolban/esp32-snippets/blob/master/cpp_utils/tests/BLE%20Tests/SampleWrite.cpp
+    Ported to Arduino ESP32 by Evandro Copercini
+*/
+
+#include <BLEDevice.h>
+#include <BLEUtils.h>
+#include <BLEServer.h>
+
+// See the following for generating UUIDs:
+// https://www.uuidgenerator.net/
+
+#define SERVICE_UUID        "4fafc201-1fb5-459e-8fcc-c5c9c331914b"
+#define CHARACTERISTIC_UUID "beb5483e-36e1-4688-b7f5-ea07361b26a8"
+
+
+class MyCallbacks: public BLECharacteristicCallbacks {
+    void onWrite(BLECharacteristic *pCharacteristic) {
+      std::string value = pCharacteristic->getValue();
+
+      if (value.length() > 0) {
+        Serial.println("*********");
+        Serial.print("New value: ");
+        for (int i = 0; i < value.length(); i++)
+          Serial.print(value[i]);
+
+        Serial.println();
+        Serial.println("*********");
+      }
+    }
+};
+
+void setup() {
+  Serial.begin(115200);
+
+  Serial.println("1- Download and install an BLE scanner app in your phone");
+  Serial.println("2- Scan for BLE devices in the app");
+  Serial.println("3- Connect to MyESP32");
+  Serial.println("4- Go to CUSTOM CHARACTERISTIC in CUSTOM SERVICE and write something");
+  Serial.println("5- See the magic =)");
+
+  BLEDevice::init("MyESP32");
+  BLEServer *pServer = BLEDevice::createServer();
+
+  BLEService *pService = pServer->createService(SERVICE_UUID);
+
+  BLECharacteristic *pCharacteristic = pService->createCharacteristic(
+                                         CHARACTERISTIC_UUID,
+                                         BLECharacteristic::PROPERTY_READ |
+                                         BLECharacteristic::PROPERTY_WRITE
+                                       );
+
+  pCharacteristic->setCallbacks(new MyCallbacks());
+
+  pCharacteristic->setValue("Hello World");
+  pService->start();
+
+  BLEAdvertising *pAdvertising = pServer->getAdvertising();
+  pAdvertising->start();
+}
+
+void loop() {
+  // put your main code here, to run repeatedly:
+  delay(2000);
+}

lib/ESP32_BLE_Arduino/library.properties

@@ -0,0 +1,10 @@
+name=ESP32 BLE Arduino
+version=0.4.8
+author=Neil Kolban <kolban1@kolban.com>
+maintainer=Neil Kolban <kolban1@kolban.com>
+sentence=BLE functions for ESP32
+paragraph=This library provides an implementation Bluetooth Low Energy support for the ESP32 using the Arduino platform. 
+category=Communication
+url=https://github.com/nkolban/ESP32_BLE_Arduino
+architectures=esp32
+includes=BLE.h, BLEUtils.h, BLEScan.h, BLEAdvertisedDevice.h

lib/ESP32_BLE_Arduino/src/BLE2902.cpp

@@ -0,0 +1,69 @@
+/*
+ * BLE2902.cpp
+ *
+ *  Created on: Jun 25, 2017
+ *      Author: kolban
+ */
+
+/*
+ * See also:
+ * https://www.bluetooth.com/specifications/gatt/viewer?attributeXmlFile=org.bluetooth.descriptor.gatt.client_characteristic_configuration.xml
+ */
+#include "sdkconfig.h"
+#if defined(CONFIG_BT_ENABLED)
+
+#include "BLE2902.h"
+
+BLE2902::BLE2902() : BLEDescriptor(BLEUUID((uint16_t) 0x2902)) {
+	uint8_t data[2] = {0,0};
+	setValue(data, 2);
+} // BLE2902
+
+
+/**
+ * @brief Get the notifications value.
+ * @return The notifications value.  True if notifications are enabled and false if not.
+ */
+bool BLE2902::getNotifications() {
+	return (getValue()[0] & (1 << 0)) != 0;
+} // getNotifications
+
+
+/**
+ * @brief Get the indications value.
+ * @return The indications value.  True if indications are enabled and false if not.
+ */
+bool BLE2902::getIndications() {
+	return (getValue()[0] & (1 << 1)) != 0;
+} // getIndications
+
+
+/**
+ * @brief Set the indications flag.
+ * @param [in] flag The indications flag.
+ */
+void BLE2902::setIndications(bool flag) {
+	uint8_t *pValue = getValue();
+	if (flag) {
+		pValue[0] |= 1<<1;
+	} else {
+		pValue[0] &= ~(1<<1);
+	}
+} // setIndications
+
+
+/**
+ * @brief Set the notifications flag.
+ * @param [in] flag The notifications flag.
+ */
+void BLE2902::setNotifications(bool flag) {
+	uint8_t *pValue = getValue();
+	if (flag) {
+		pValue[0] |= 1<<0;
+	} else {
+		pValue[0] &= ~(1<<0);
+	}
+} // setNotifications
+
+
+#endif

lib/ESP32_BLE_Arduino/src/BLE2902.h

@@ -0,0 +1,34 @@
+/*
+ * BLE2902.h
+ *
+ *  Created on: Jun 25, 2017
+ *      Author: kolban
+ */
+
+#ifndef COMPONENTS_CPP_UTILS_BLE2902_H_
+#define COMPONENTS_CPP_UTILS_BLE2902_H_
+#include "sdkconfig.h"
+#if defined(CONFIG_BT_ENABLED)
+
+#include "BLEDescriptor.h"
+
+/**
+ * @brief Descriptor for Client Characteristic Configuration.
+ *
+ * This is a convenience descriptor for the Client Characteristic Configuration which has a UUID of 0x2902.
+ *
+ * See also:
+ * https://www.bluetooth.com/specifications/gatt/viewer?attributeXmlFile=org.bluetooth.descriptor.gatt.client_characteristic_configuration.xml
+ */
+class BLE2902: public BLEDescriptor {
+public:
+	BLE2902();
+	bool getNotifications();
+	bool getIndications();
+	void setNotifications(bool flag);
+	void setIndications(bool flag);
+
+}; // BLE2902
+
+#endif /* CONFIG_BT_ENABLED */
+#endif /* COMPONENTS_CPP_UTILS_BLE2902_H_ */

lib/ESP32_BLE_Arduino/src/BLEAddress.cpp

@@ -0,0 +1,96 @@
+/*
+ * BLEAddress.cpp
+ *
+ *  Created on: Jul 2, 2017
+ *      Author: kolban
+ */
+#include "sdkconfig.h"
+#if defined(CONFIG_BT_ENABLED)
+
+#include "BLEAddress.h"
+#include <string>
+#include <sstream>
+#include <iomanip>
+#include <string.h>
+#include <stdio.h>
+#ifdef ARDUINO_ARCH_ESP32
+#include "esp32-hal-log.h"
+#endif
+
+
+/**
+ * @brief Create an address from the native ESP32 representation.
+ * @param [in] address The native representation.
+ */
+BLEAddress::BLEAddress(esp_bd_addr_t address) {
+	memcpy(m_address, address, ESP_BD_ADDR_LEN);
+} // BLEAddress
+
+
+/**
+ * @brief Create an address from a hex string
+ *
+ * A hex string is of the format:
+ * ```
+ * 00:00:00:00:00:00
+ * ```
+ * which is 17 characters in length.
+ *
+ * @param [in] stringAddress The hex representation of the address.
+ */
+BLEAddress::BLEAddress(std::string stringAddress) {
+	if (stringAddress.length() != 17) {
+		return;
+	}
+	int data[6];
+	sscanf(stringAddress.c_str(), "%x:%x:%x:%x:%x:%x", &data[0], &data[1], &data[2], &data[3], &data[4], &data[5]);
+	m_address[0] = (uint8_t)data[0];
+	m_address[1] = (uint8_t)data[1];
+	m_address[2] = (uint8_t)data[2];
+	m_address[3] = (uint8_t)data[3];
+	m_address[4] = (uint8_t)data[4];
+	m_address[5] = (uint8_t)data[5];
+} // BLEAddress
+
+
+/**
+ * @brief Determine if this address equals another.
+ * @param [in] otherAddress The other address to compare against.
+ * @return True if the addresses are equal.
+ */
+bool BLEAddress::equals(BLEAddress otherAddress) {
+	return memcmp(otherAddress.getNative(), m_address, 6) == 0;
+} // equals
+
+
+/**
+ * @brief Return the native representation of the address.
+ * @return The native representation of the address.
+ */
+esp_bd_addr_t *BLEAddress::getNative() {
+	return &m_address;
+} // getNative
+
+
+/**
+ * @brief Convert a BLE address to a string.
+ *
+ * A string representation of an address is in the format:
+ *
+ * ```
+ * xx:xx:xx:xx:xx:xx
+ * ```
+ *
+ * @return The string representation of the address.
+ */
+std::string BLEAddress::toString() {
+	std::stringstream stream;
+	stream << std::setfill('0') << std::setw(2) << std::hex << (int)((uint8_t *)(m_address))[0] << ':';
+	stream << std::setfill('0') << std::setw(2) << std::hex << (int)((uint8_t *)(m_address))[1] << ':';
+	stream << std::setfill('0') << std::setw(2) << std::hex << (int)((uint8_t *)(m_address))[2] << ':';
+	stream << std::setfill('0') << std::setw(2) << std::hex << (int)((uint8_t *)(m_address))[3] << ':';
+	stream << std::setfill('0') << std::setw(2) << std::hex << (int)((uint8_t *)(m_address))[4] << ':';
+	stream << std::setfill('0') << std::setw(2) << std::hex << (int)((uint8_t *)(m_address))[5];
+	return stream.str();
+} // toString
+#endif

lib/ESP32_BLE_Arduino/src/BLEAddress.h

@@ -0,0 +1,34 @@
+/*
+ * BLEAddress.h
+ *
+ *  Created on: Jul 2, 2017
+ *      Author: kolban
+ */
+
+#ifndef COMPONENTS_CPP_UTILS_BLEADDRESS_H_
+#define COMPONENTS_CPP_UTILS_BLEADDRESS_H_
+#include "sdkconfig.h"
+#if defined(CONFIG_BT_ENABLED)
+#include <esp_gap_ble_api.h> // ESP32 BLE
+#include <string>
+
+
+/**
+ * @brief A %BLE device address.
+ *
+ * Every %BLE device has a unique address which can be used to identify it and form connections.
+ */
+class BLEAddress {
+public:
+	BLEAddress(esp_bd_addr_t address);
+	BLEAddress(std::string stringAddress);
+	bool           equals(BLEAddress otherAddress);
+	esp_bd_addr_t* getNative();
+	std::string    toString();
+
+private:
+	esp_bd_addr_t m_address;
+};
+
+#endif /* CONFIG_BT_ENABLED */
+#endif /* COMPONENTS_CPP_UTILS_BLEADDRESS_H_ */

lib/ESP32_BLE_Arduino/src/BLEAdvertisedDevice.cpp

@@ -0,0 +1,513 @@
+/*
+ * BLEAdvertisedDevice.cpp
+ *
+ * During the scanning procedure, we will be finding advertised BLE devices.  This class
+ * models a found device.
+ *
+ *
+ * See also:
+ * https://www.bluetooth.com/specifications/assigned-numbers/generic-access-profile
+ *
+ *  Created on: Jul 3, 2017
+ *      Author: kolban
+ */
+#include "sdkconfig.h"
+#if defined(CONFIG_BT_ENABLED)
+#include <esp_log.h>
+#include <sstream>
+#include "BLEAdvertisedDevice.h"
+#include "BLEUtils.h"
+#ifdef ARDUINO_ARCH_ESP32
+#include "esp32-hal-log.h"
+#endif
+static const char* LOG_TAG="BLEAdvertisedDevice";
+
+BLEAdvertisedDevice::BLEAdvertisedDevice() {
+	m_adFlag           = 0;
+	m_appearance       = 0;
+	m_deviceType       = 0;
+	m_manufacturerData = "";
+	m_name             = "";
+	m_rssi             = -9999;
+	m_serviceData      = "";
+	m_txPower          = 0;
+	m_pScan            = nullptr;
+
+	m_haveAppearance       = false;
+	m_haveManufacturerData = false;
+	m_haveName             = false;
+	m_haveRSSI             = false;
+	m_haveServiceData      = false;
+	m_haveServiceUUID      = false;
+	m_haveTXPower          = false;
+
+} // BLEAdvertisedDevice
+
+
+/**
+ * @brief Get the address.
+ *
+ * Every %BLE device exposes an address that is used to identify it and subsequently connect to it.
+ * Call this function to obtain the address of the advertised device.
+ *
+ * @return The address of the advertised device.
+ */
+BLEAddress BLEAdvertisedDevice::getAddress() {
+	return m_address;
+} // getAddress
+
+
+/**
+ * @brief Get the appearance.
+ *
+ * A %BLE device can declare its own appearance.  The appearance is how it would like to be shown to an end user
+ * typcially in the form of an icon.
+ *
+ * @return The appearance of the advertised device.
+ */
+uint16_t BLEAdvertisedDevice::getAppearance() {
+	return m_appearance;
+} // getAppearance
+
+
+/**
+ * @brief Get the manufacturer data.
+ * @return The manufacturer data of the advertised device.
+ */
+std::string BLEAdvertisedDevice::getManufacturerData() {
+	return m_manufacturerData;
+} // getManufacturerData
+
+
+/**
+ * @brief Get the name.
+ * @return The name of the advertised device.
+ */
+std::string BLEAdvertisedDevice::getName() {
+	return m_name;
+} // getName
+
+
+/**
+ * @brief Get the RSSI.
+ * @return The RSSI of the advertised device.
+ */
+int BLEAdvertisedDevice::getRSSI() {
+	return m_rssi;
+} // getRSSI
+
+
+/**
+ * @brief Get the scan object that created this advertisement.
+ * @return The scan object.
+ */
+BLEScan* BLEAdvertisedDevice::getScan() {
+	return m_pScan;
+} // getScan
+
+
+/**
+ * @brief Get the service data.
+ * @return The ServiceData of the advertised device.
+ */
+std::string BLEAdvertisedDevice::getServiceData() {
+	return m_serviceData;
+} //getServiceData
+
+
+/**
+ * @brief Get the service data UUID.
+ * @return The service data UUID.
+ */
+BLEUUID BLEAdvertisedDevice::getServiceDataUUID() {
+	return m_serviceDataUUID;
+} // getServiceDataUUID
+
+
+/**
+ * @brief Get the Service UUID.
+ * @return The Service UUID of the advertised device.
+ */
+BLEUUID BLEAdvertisedDevice::getServiceUUID() {  //TODO Remove it eventually, is no longer useful
+	return m_serviceUUIDs[0];
+} // getServiceUUID
+
+/**
+ * @brief Check advertised serviced for existence required UUID
+ * @return Return true if service is advertised
+ */
+bool BLEAdvertisedDevice::isAdvertisingService(BLEUUID uuid){
+	for (int i = 0; i < m_serviceUUIDs.size(); ++i) {
+		if(m_serviceUUIDs[i].equals(uuid))
+			return true;
+	}
+	return false;
+}
+
+/**
+ * @brief Get the TX Power.
+ * @return The TX Power of the advertised device.
+ */
+int8_t BLEAdvertisedDevice::getTXPower() {
+	return m_txPower;
+} // getTXPower
+
+
+
+/**
+ * @brief Does this advertisement have an appearance value?
+ * @return True if there is an appearance value present.
+ */
+bool BLEAdvertisedDevice::haveAppearance() {
+	return m_haveAppearance;
+} // haveAppearance
+
+
+/**
+ * @brief Does this advertisement have manufacturer data?
+ * @return True if there is manufacturer data present.
+ */
+bool BLEAdvertisedDevice::haveManufacturerData() {
+	return m_haveManufacturerData;
+} // haveManufacturerData
+
+
+/**
+ * @brief Does this advertisement have a name value?
+ * @return True if there is a name value present.
+ */
+bool BLEAdvertisedDevice::haveName() {
+	return m_haveName;
+} // haveName
+
+
+/**
+ * @brief Does this advertisement have a signal strength value?
+ * @return True if there is a signal strength value present.
+ */
+bool BLEAdvertisedDevice::haveRSSI() {
+	return m_haveRSSI;
+} // haveRSSI
+
+
+/**
+ * @brief Does this advertisement have a service data value?
+ * @return True if there is a service data value present.
+ */
+bool BLEAdvertisedDevice::haveServiceData() {
+	return m_haveServiceData;
+} // haveServiceData
+
+
+/**
+ * @brief Does this advertisement have a service UUID value?
+ * @return True if there is a service UUID value present.
+ */
+bool BLEAdvertisedDevice::haveServiceUUID() {
+	return m_haveServiceUUID;
+} // haveServiceUUID
+
+
+/**
+ * @brief Does this advertisement have a transmission power value?
+ * @return True if there is a transmission power value present.
+ */
+bool BLEAdvertisedDevice::haveTXPower() {
+	return m_haveTXPower;
+} // haveTXPower
+
+
+/**
+ * @brief Parse the advertising pay load.
+ *
+ * The pay load is a buffer of bytes that is either 31 bytes long or terminated by
+ * a 0 length value.  Each entry in the buffer has the format:
+ * [length][type][data...]
+ *
+ * The length does not include itself but does include everything after it until the next record.  A record
+ * with a length value of 0 indicates a terminator.
+ *
+ * https://www.bluetooth.com/specifications/assigned-numbers/generic-access-profile
+ */
+void BLEAdvertisedDevice::parseAdvertisement(uint8_t* payload) {
+	uint8_t length;
+	uint8_t ad_type;
+	uint8_t sizeConsumed = 0;
+	bool finished = false;
+
+	while(!finished) {
+		length = *payload;          // Retrieve the length of the record.
+		payload++;                  // Skip to type
+		sizeConsumed += 1 + length; // increase the size consumed.
+
+		if (length != 0) { // A length of 0 indicates that we have reached the end.
+			ad_type = *payload;
+			payload++;
+			length--;
+
+			char* pHex = BLEUtils::buildHexData(nullptr, payload, length);
+			ESP_LOGD(LOG_TAG, "Type: 0x%.2x (%s), length: %d, data: %s",
+					ad_type, BLEUtils::advTypeToString(ad_type), length, pHex);
+			free(pHex);
+
+			switch(ad_type) {
+				case ESP_BLE_AD_TYPE_NAME_CMPL: {   // Adv Data Type: 0x09
+					setName(std::string(reinterpret_cast<char*>(payload), length));
+					break;
+				} // ESP_BLE_AD_TYPE_NAME_CMPL
+
+				case ESP_BLE_AD_TYPE_TX_PWR: {      // Adv Data Type: 0x0A
+					setTXPower(*payload);
+					break;
+				} // ESP_BLE_AD_TYPE_TX_PWR
+
+				case ESP_BLE_AD_TYPE_APPEARANCE: { // Adv Data Type: 0x19
+					setAppearance(*reinterpret_cast<uint16_t*>(payload));
+					break;
+				} // ESP_BLE_AD_TYPE_APPEARANCE
+
+				case ESP_BLE_AD_TYPE_FLAG: {        // Adv Data Type: 0x01
+					setAdFlag(*payload);
+					break;
+				} // ESP_BLE_AD_TYPE_FLAG
+
+				case ESP_BLE_AD_TYPE_16SRV_CMPL:
+				case ESP_BLE_AD_TYPE_16SRV_PART: {   // Adv Data Type: 0x02
+					for (int var = 0; var < length/2; ++var) {
+						setServiceUUID(BLEUUID(*reinterpret_cast<uint16_t*>(payload+var*2)));
+					}
+					break;
+				} // ESP_BLE_AD_TYPE_16SRV_PART
+
+				case ESP_BLE_AD_TYPE_32SRV_CMPL:
+				case ESP_BLE_AD_TYPE_32SRV_PART: {   // Adv Data Type: 0x04
+					for (int var = 0; var < length/4; ++var) {
+						setServiceUUID(BLEUUID(*reinterpret_cast<uint32_t*>(payload+var*4)));
+					}
+					break;
+				} // ESP_BLE_AD_TYPE_32SRV_PART
+
+				case ESP_BLE_AD_TYPE_128SRV_CMPL: { // Adv Data Type: 0x07
+					setServiceUUID(BLEUUID(payload, 16, false));
+					break;
+				} // ESP_BLE_AD_TYPE_128SRV_CMPL
+
+				case ESP_BLE_AD_TYPE_128SRV_PART: { // Adv Data Type: 0x06
+					setServiceUUID(BLEUUID(payload, 16, false));
+					break;
+				} // ESP_BLE_AD_TYPE_128SRV_PART
+
+				// See CSS Part A 1.4 Manufacturer Specific Data
+				case ESP_BLE_AD_MANUFACTURER_SPECIFIC_TYPE: {
+					setManufacturerData(std::string(reinterpret_cast<char*>(payload), length));
+					break;
+				} // ESP_BLE_AD_MANUFACTURER_SPECIFIC_TYPE
+
+				case ESP_BLE_AD_TYPE_SERVICE_DATA: {  // Adv Data Type: 0x16 (Service Data) - 2 byte UUID
+					if (length < 2) {
+						ESP_LOGE(LOG_TAG, "Length too small for ESP_BLE_AD_TYPE_SERVICE_DATA");
+						break;
+					}
+					uint16_t uuid = *(uint16_t *)payload;
+					setServiceDataUUID(BLEUUID(uuid));
+					if (length > 2) {
+						setServiceData(std::string(reinterpret_cast<char*>(payload+2), length-2));
+					}
+					break;
+				} //ESP_BLE_AD_TYPE_SERVICE_DATA
+
+				case ESP_BLE_AD_TYPE_32SERVICE_DATA: {  // Adv Data Type: 0x20 (Service Data) - 4 byte UUID
+					if (length < 4) {
+						ESP_LOGE(LOG_TAG, "Length too small for ESP_BLE_AD_TYPE_32SERVICE_DATA");
+						break;
+					}
+					uint32_t uuid = *(uint32_t *)payload;
+					setServiceDataUUID(BLEUUID(uuid));
+					if (length > 4) {
+						setServiceData(std::string(reinterpret_cast<char*>(payload+4), length-4));
+					}
+					break;
+				} //ESP_BLE_AD_TYPE_32SERVICE_DATA
+
+				case ESP_BLE_AD_TYPE_128SERVICE_DATA: {  // Adv Data Type: 0x21 (Service Data) - 16 byte UUID
+					if (length < 16) {
+						ESP_LOGE(LOG_TAG, "Length too small for ESP_BLE_AD_TYPE_128SERVICE_DATA");
+						break;
+					}
+
+					setServiceDataUUID(BLEUUID(payload, (size_t)16, false));
+					if (length > 16) {
+						setServiceData(std::string(reinterpret_cast<char*>(payload+16), length-16));
+					}
+					break;
+				} //ESP_BLE_AD_TYPE_32SERVICE_DATA
+
+				default: {
+					ESP_LOGD(LOG_TAG, "Unhandled type: adType: %d - 0x%.2x", ad_type, ad_type);
+					break;
+				}
+			} // switch
+			payload += length;
+		} // Length <> 0
+
+
+		if (sizeConsumed >=31 || length == 0) {
+			finished = true;
+		}
+	} // !finished
+} // parseAdvertisement
+
+
+/**
+ * @brief Set the address of the advertised device.
+ * @param [in] address The address of the advertised device.
+ */
+void BLEAdvertisedDevice::setAddress(BLEAddress address) {
+	m_address = address;
+} // setAddress
+
+
+/**
+ * @brief Set the adFlag for this device.
+ * @param [in] The discovered adFlag.
+ */
+void BLEAdvertisedDevice::setAdFlag(uint8_t adFlag) {
+	m_adFlag = adFlag;
+} // setAdFlag
+
+
+/**
+ * @brief Set the appearance for this device.
+ * @param [in] The discovered appearance.
+ */
+void BLEAdvertisedDevice::setAppearance(uint16_t appearance) {
+	m_appearance     = appearance;
+	m_haveAppearance = true;
+	ESP_LOGD(LOG_TAG, "- appearance: %d", m_appearance);
+} // setAppearance
+
+
+/**
+ * @brief Set the manufacturer data for this device.
+ * @param [in] The discovered manufacturer data.
+ */
+void BLEAdvertisedDevice::setManufacturerData(std::string manufacturerData) {
+	m_manufacturerData     = manufacturerData;
+	m_haveManufacturerData = true;
+	char* pHex = BLEUtils::buildHexData(nullptr, (uint8_t*)m_manufacturerData.data(), (uint8_t)m_manufacturerData.length());
+	ESP_LOGD(LOG_TAG, "- manufacturer data: %s", pHex);
+	free(pHex);
+} // setManufacturerData
+
+
+/**
+ * @brief Set the name for this device.
+ * @param [in] name The discovered name.
+ */
+void BLEAdvertisedDevice::setName(std::string name) {
+	m_name     = name;
+	m_haveName = true;
+	ESP_LOGD(LOG_TAG, "- setName(): name: %s", m_name.c_str());
+} // setName
+
+
+/**
+ * @brief Set the RSSI for this device.
+ * @param [in] rssi The discovered RSSI.
+ */
+void BLEAdvertisedDevice::setRSSI(int rssi) {
+	m_rssi     = rssi;
+	m_haveRSSI = true;
+	ESP_LOGD(LOG_TAG, "- setRSSI(): rssi: %d", m_rssi);
+} // setRSSI
+
+
+/**
+ * @brief Set the Scan that created this advertised device.
+ * @param pScan The Scan that created this advertised device.
+ */
+void BLEAdvertisedDevice::setScan(BLEScan* pScan) {
+	m_pScan = pScan;
+} // setScan
+
+
+/**
+ * @brief Set the Service UUID for this device.
+ * @param [in] serviceUUID The discovered serviceUUID
+ */
+void BLEAdvertisedDevice::setServiceUUID(const char* serviceUUID) {
+	return setServiceUUID(BLEUUID(serviceUUID));
+} // setServiceUUID
+
+
+/**
+ * @brief Set the Service UUID for this device.
+ * @param [in] serviceUUID The discovered serviceUUID
+ */
+void BLEAdvertisedDevice::setServiceUUID(BLEUUID serviceUUID) {
+	m_serviceUUIDs.push_back(serviceUUID);
+	m_haveServiceUUID = true;
+	ESP_LOGD(LOG_TAG, "- addServiceUUID(): serviceUUID: %s", serviceUUID.toString().c_str());
+} // setServiceUUID
+
+
+/**
+ * @brief Set the ServiceData value.
+ * @param [in] data ServiceData value.
+ */
+void BLEAdvertisedDevice::setServiceData(std::string serviceData) {
+	m_haveServiceData = true;         // Set the flag that indicates we have service data.
+	m_serviceData     = serviceData;  // Save the service data that we received.
+} //setServiceData
+
+
+/**
+ * @brief Set the ServiceDataUUID value.
+ * @param [in] data ServiceDataUUID value.
+ */
+void BLEAdvertisedDevice::setServiceDataUUID(BLEUUID uuid) {
+	m_haveServiceData = true;         // Set the flag that indicates we have service data.
+	m_serviceDataUUID = uuid;
+} // setServiceDataUUID
+
+
+/**
+ * @brief Set the power level for this device.
+ * @param [in] txPower The discovered power level.
+ */
+void BLEAdvertisedDevice::setTXPower(int8_t txPower) {
+	m_txPower     = txPower;
+	m_haveTXPower = true;
+	ESP_LOGD(LOG_TAG, "- txPower: %d", m_txPower);
+} // setTXPower
+
+
+/**
+ * @brief Create a string representation of this device.
+ * @return A string representation of this device.
+ */
+std::string BLEAdvertisedDevice::toString() {
+	std::stringstream ss;
+	ss << "Name: " << getName() << ", Address: " << getAddress().toString();
+	if (haveAppearance()) {
+		ss << ", appearance: " << getAppearance();
+	}
+	if (haveManufacturerData()) {
+		char *pHex = BLEUtils::buildHexData(nullptr, (uint8_t*)getManufacturerData().data(), getManufacturerData().length());
+		ss << ", manufacturer data: " << pHex;
+		free(pHex);
+	}
+	if (haveServiceUUID()) {
+		ss << ", serviceUUID: " << getServiceUUID().toString();
+	}
+	if (haveTXPower()) {
+		ss << ", txPower: " << (int)getTXPower();
+	}
+	return ss.str();
+} // toString
+
+
+
+
+#endif /* CONFIG_BT_ENABLED */
+

lib/ESP32_BLE_Arduino/src/BLEAdvertisedDevice.h

@@ -0,0 +1,117 @@
+/*
+ * BLEAdvertisedDevice.h
+ *
+ *  Created on: Jul 3, 2017
+ *      Author: kolban
+ */
+
+#ifndef COMPONENTS_CPP_UTILS_BLEADVERTISEDDEVICE_H_
+#define COMPONENTS_CPP_UTILS_BLEADVERTISEDDEVICE_H_
+#include "sdkconfig.h"
+#if defined(CONFIG_BT_ENABLED)
+#include <esp_gattc_api.h>
+
+#include <map>
+
+#include "BLEAddress.h"
+#include "BLEScan.h"
+#include "BLEUUID.h"
+
+
+class BLEScan;
+/**
+ * @brief A representation of a %BLE advertised device found by a scan.
+ *
+ * When we perform a %BLE scan, the result will be a set of devices that are advertising.  This
+ * class provides a model of a detected device.
+ */
+class BLEAdvertisedDevice {
+public:
+	BLEAdvertisedDevice();
+
+	BLEAddress  getAddress();
+	uint16_t    getAppearance();
+	std::string getManufacturerData();
+	std::string getName();
+	int         getRSSI();
+	BLEScan*    getScan();
+	std::string getServiceData();
+	BLEUUID     getServiceDataUUID();
+	BLEUUID     getServiceUUID();
+	int8_t      getTXPower();
+
+
+	bool		    isAdvertisingService(BLEUUID uuid);
+	bool        haveAppearance();
+	bool        haveManufacturerData();
+	bool        haveName();
+	bool        haveRSSI();
+	bool        haveServiceData();
+	bool        haveServiceUUID();
+	bool        haveTXPower();
+
+	std::string toString();
+
+private:
+	friend class BLEScan;
+
+	void parseAdvertisement(uint8_t* payload);
+	void setAddress(BLEAddress address);
+	void setAdFlag(uint8_t adFlag);
+	void setAdvertizementResult(uint8_t* payload);
+	void setAppearance(uint16_t appearance);
+	void setManufacturerData(std::string manufacturerData);
+	void setName(std::string name);
+	void setRSSI(int rssi);
+	void setScan(BLEScan* pScan);
+	void setServiceData(std::string data);
+	void setServiceDataUUID(BLEUUID uuid);
+	void setServiceUUID(const char* serviceUUID);
+	void setServiceUUID(BLEUUID serviceUUID);
+	void setTXPower(int8_t txPower);
+
+
+	bool m_haveAppearance;
+	bool m_haveManufacturerData;
+	bool m_haveName;
+	bool m_haveRSSI;
+	bool m_haveServiceData;
+	bool m_haveServiceUUID;
+	bool m_haveTXPower;
+
+
+	BLEAddress  m_address = BLEAddress((uint8_t*)"\0\0\0\0\0\0");
+	uint8_t     m_adFlag;
+	uint16_t    m_appearance;
+	int         m_deviceType;
+	std::string m_manufacturerData;
+	std::string m_name;
+	BLEScan*    m_pScan;
+	int         m_rssi;
+	std::vector<BLEUUID> m_serviceUUIDs;
+	int8_t      m_txPower;
+	std::string m_serviceData;
+	BLEUUID     m_serviceDataUUID;
+};
+
+/**
+ * @brief A callback handler for callbacks associated device scanning.
+ *
+ * When we are performing a scan as a %BLE client, we may wish to know when a new device that is advertising
+ * has been found.  This class can be sub-classed and registered such that when a scan is performed and
+ * a new advertised device has been found, we will be called back to be notified.
+ */
+class BLEAdvertisedDeviceCallbacks {
+public:
+	virtual ~BLEAdvertisedDeviceCallbacks() {}
+	/**
+	 * @brief Called when a new scan result is detected.
+	 *
+	 * As we are scanning, we will find new devices.  When found, this call back is invoked with a reference to the
+	 * device that was found.  During any individual scan, a device will only be detected one time.
+	 */
+	virtual void onResult(BLEAdvertisedDevice advertisedDevice) = 0;
+};
+
+#endif /* CONFIG_BT_ENABLED */
+#endif /* COMPONENTS_CPP_UTILS_BLEADVERTISEDDEVICE_H_ */

lib/ESP32_BLE_Arduino/src/BLEAdvertising.cpp

@@ -0,0 +1,157 @@
+/*
+ * BLEAdvertising.cpp
+ *
+ * This class encapsulates advertising a BLE Server.
+ *  Created on: Jun 21, 2017
+ *      Author: kolban
+ */
+#include "sdkconfig.h"
+#if defined(CONFIG_BT_ENABLED)
+#include "BLEAdvertising.h"
+#include <esp_log.h>
+#include <esp_err.h>
+#include "BLEUtils.h"
+#include "GeneralUtils.h"
+#ifdef ARDUINO_ARCH_ESP32
+#include "esp32-hal-log.h"
+#endif
+
+static const char* LOG_TAG = "BLEAdvertising";
+
+
+/**
+ * @brief Construct a default advertising object.
+ *
+ */
+BLEAdvertising::BLEAdvertising() {
+	m_advData.set_scan_rsp        = false;
+	m_advData.include_name        = true;
+	m_advData.include_txpower     = true;
+	m_advData.min_interval        = 0x20;
+	m_advData.max_interval        = 0x40;
+	m_advData.appearance          = 0x00;
+	m_advData.manufacturer_len    = 0;
+	m_advData.p_manufacturer_data = nullptr;
+	m_advData.service_data_len    = 0;
+	m_advData.p_service_data      = nullptr;
+	m_advData.service_uuid_len    = 0;
+	m_advData.p_service_uuid      = nullptr;
+	m_advData.flag                = (ESP_BLE_ADV_FLAG_GEN_DISC | ESP_BLE_ADV_FLAG_BREDR_NOT_SPT);
+
+	m_advParams.adv_int_min       = 0x20;
+	m_advParams.adv_int_max       = 0x40;
+	m_advParams.adv_type          = ADV_TYPE_IND;
+	m_advParams.own_addr_type     = BLE_ADDR_TYPE_PUBLIC;
+	m_advParams.channel_map       = ADV_CHNL_ALL;
+	m_advParams.adv_filter_policy = ADV_FILTER_ALLOW_SCAN_ANY_CON_ANY;
+} // BLEAdvertising
+
+
+/**
+ * @brief Add a service uuid to exposed list of services.
+ * @param [in] serviceUUID The UUID of the service to expose.
+ */
+void BLEAdvertising::addServiceUUID(BLEUUID serviceUUID) {
+	m_serviceUUIDs.push_back(serviceUUID);
+} // addServiceUUID
+
+
+/**
+ * @brief Add a service uuid to exposed list of services.
+ * @param [in] serviceUUID The string representation of the service to expose.
+ */
+void BLEAdvertising::addServiceUUID(const char* serviceUUID) {
+	addServiceUUID(BLEUUID(serviceUUID));
+} // addServiceUUID
+
+
+/**
+ * @brief Set the device appearance in the advertising data.
+ * The appearance attribute is of type 0x19.  The codes for distinct appearances can be found here:
+ * https://www.bluetooth.com/specifications/gatt/viewer?attributeXmlFile=org.bluetooth.characteristic.gap.appearance.xml.
+ * @param [in] appearance The appearance of the device in the advertising data.
+ * @return N/A.
+ */
+void BLEAdvertising::setAppearance(uint16_t appearance) {
+	m_advData.appearance = appearance;
+} // setAppearance
+
+
+/**
+ * @brief Start advertising.
+ * Start advertising.
+ * @return N/A.
+ */
+void BLEAdvertising::start() {
+	ESP_LOGD(LOG_TAG, ">> start");
+
+	// We have a vector of service UUIDs that we wish to advertise.  In order to use the
+	// ESP-IDF framework, these must be supplied in a contiguous array of their 128bit (16 byte)
+	// representations.  If we have 1 or more services to advertise then we allocate enough
+	// storage to host them and then copy them in one at a time into the contiguous storage.
+	int numServices = m_serviceUUIDs.size();
+	if (numServices > 0) {
+		m_advData.service_uuid_len = 16*numServices;
+		m_advData.p_service_uuid = new uint8_t[m_advData.service_uuid_len];
+		uint8_t* p = m_advData.p_service_uuid;
+		for (int i=0; i<numServices; i++) {
+			ESP_LOGD(LOG_TAG, "- advertising service: %s", m_serviceUUIDs[i].toString().c_str());
+			BLEUUID serviceUUID128 = m_serviceUUIDs[i].to128();
+			memcpy(p, serviceUUID128.getNative()->uuid.uuid128, 16);
+			p+=16;
+		}
+	} else {
+		m_advData.service_uuid_len = 0;
+		ESP_LOGD(LOG_TAG, "- no services advertised");
+	}
+
+
+	// Set the configuration for advertising.
+	m_advData.set_scan_rsp = false;
+	esp_err_t errRc = ::esp_ble_gap_config_adv_data(&m_advData);
+	if (errRc != ESP_OK) {
+		ESP_LOGE(LOG_TAG, "<< esp_ble_gap_config_adv_data: rc=%d %s", errRc, GeneralUtils::errorToString(errRc));
+		return;
+	}
+
+	m_advData.set_scan_rsp = true;
+	errRc = ::esp_ble_gap_config_adv_data(&m_advData);
+	if (errRc != ESP_OK) {
+		ESP_LOGE(LOG_TAG, "<< esp_ble_gap_config_adv_data (Scan response): rc=%d %s", errRc, GeneralUtils::errorToString(errRc));
+		return;
+	}
+
+	// If we had services to advertise then we previously allocated some storage for them.
+	// Here we release that storage.
+	if (m_advData.service_uuid_len > 0) {
+		delete[] m_advData.p_service_uuid;
+		m_advData.p_service_uuid = nullptr;
+	}
+
+	// Start advertising.
+	errRc = ::esp_ble_gap_start_advertising(&m_advParams);
+	if (errRc != ESP_OK) {
+		ESP_LOGE(LOG_TAG, "<< esp_ble_gap_start_advertising: rc=%d %s", errRc, GeneralUtils::errorToString(errRc));
+		return;
+	}
+	ESP_LOGD(LOG_TAG, "<< start");
+} // start
+
+
+/**
+ * @brief Stop advertising.
+ * Stop advertising.
+ * @return N/A.
+ */
+void BLEAdvertising::stop() {
+	ESP_LOGD(LOG_TAG, ">> stop");
+	esp_err_t errRc = ::esp_ble_gap_stop_advertising();
+	if (errRc != ESP_OK) {
+		ESP_LOGE(LOG_TAG, "esp_ble_gap_stop_advertising: rc=%d %s", errRc, GeneralUtils::errorToString(errRc));
+		return;
+	}
+	ESP_LOGD(LOG_TAG, "<< stop");
+} // stop
+
+
+#endif /* CONFIG_BT_ENABLED */

lib/ESP32_BLE_Arduino/src/BLEAdvertising.h

@@ -0,0 +1,35 @@
+/*
+ * BLEAdvertising.h
+ *
+ *  Created on: Jun 21, 2017
+ *      Author: kolban
+ */
+
+#ifndef COMPONENTS_CPP_UTILS_BLEADVERTISING_H_
+#define COMPONENTS_CPP_UTILS_BLEADVERTISING_H_
+#include "sdkconfig.h"
+#if defined(CONFIG_BT_ENABLED)
+#include <esp_gap_ble_api.h>
+#include "BLEUUID.h"
+#include <vector>
+
+/**
+ * @brief Perform and manage %BLE advertising.
+ *
+ * A %BLE server will want to perform advertising in order to make itself known to %BLE clients.
+ */
+class BLEAdvertising {
+public:
+	BLEAdvertising();
+	void addServiceUUID(BLEUUID serviceUUID);
+	void addServiceUUID(const char* serviceUUID);
+	void start();
+	void stop();
+	void setAppearance(uint16_t appearance);
+private:
+	esp_ble_adv_data_t   m_advData;
+	esp_ble_adv_params_t m_advParams;
+	std::vector<BLEUUID> m_serviceUUIDs;
+};
+#endif /* CONFIG_BT_ENABLED */
+#endif /* COMPONENTS_CPP_UTILS_BLEADVERTISING_H_ */

lib/ESP32_BLE_Arduino/src/BLECharacteristic.cpp

@@ -0,0 +1,719 @@
+/*
+ * BLECharacteristic.cpp
+ *
+ *  Created on: Jun 22, 2017
+ *      Author: kolban
+ */
+#include "sdkconfig.h"
+#if defined(CONFIG_BT_ENABLED)
+#include <sstream>
+#include <string.h>
+#include <iomanip>
+#include <stdlib.h>
+#include "sdkconfig.h"
+#include <esp_log.h>
+#include <esp_err.h>
+#include "BLECharacteristic.h"
+#include "BLEService.h"
+#include "BLEUtils.h"
+#include "BLE2902.h"
+#include "GeneralUtils.h"
+#ifdef ARDUINO_ARCH_ESP32
+#include "esp32-hal-log.h"
+#endif
+
+static const char* LOG_TAG = "BLECharacteristic";
+
+#define NULL_HANDLE (0xffff)
+
+
+/**
+ * @brief Construct a characteristic
+ * @param [in] uuid - UUID (const char*) for the characteristic.
+ * @param [in] properties - Properties for the characteristic.
+ */
+BLECharacteristic::BLECharacteristic(const char* uuid, uint32_t properties) : BLECharacteristic(BLEUUID(uuid), properties) {
+}
+
+/**
+ * @brief Construct a characteristic
+ * @param [in] uuid - UUID for the characteristic.
+ * @param [in] properties - Properties for the characteristic.
+ */
+BLECharacteristic::BLECharacteristic(BLEUUID uuid, uint32_t properties) {
+	m_bleUUID    = uuid;
+	m_handle     = NULL_HANDLE;
+	m_properties = (esp_gatt_char_prop_t)0;
+	m_pCallbacks = nullptr;
+
+	setBroadcastProperty((properties & PROPERTY_BROADCAST) !=0);
+	setReadProperty((properties & PROPERTY_READ) !=0);
+	setWriteProperty((properties & PROPERTY_WRITE) !=0);
+	setNotifyProperty((properties & PROPERTY_NOTIFY) !=0);
+	setIndicateProperty((properties & PROPERTY_INDICATE) !=0);
+	setWriteNoResponseProperty((properties & PROPERTY_WRITE_NR) !=0);
+} // BLECharacteristic
+
+/**
+ * @brief Destructor.
+ */
+BLECharacteristic::~BLECharacteristic() {
+	//free(m_value.attr_value); // Release the storage for the value.
+} // ~BLECharacteristic
+
+
+/**
+ * @brief Associate a descriptor with this characteristic.
+ * @param [in] pDescriptor
+ * @return N/A.
+ */
+void BLECharacteristic::addDescriptor(BLEDescriptor* pDescriptor) {
+	ESP_LOGD(LOG_TAG, ">> addDescriptor(): Adding %s to %s", pDescriptor->toString().c_str(), toString().c_str());
+	m_descriptorMap.setByUUID(pDescriptor->getUUID(), pDescriptor);
+	ESP_LOGD(LOG_TAG, "<< addDescriptor()");
+} // addDescriptor
+
+
+/**
+ * @brief Register a new characteristic with the ESP runtime.
+ * @param [in] pService The service with which to associate this characteristic.
+ */
+void BLECharacteristic::executeCreate(BLEService* pService) {
+	ESP_LOGD(LOG_TAG, ">> executeCreate()");
+
+	if (m_handle != NULL_HANDLE) {
+		ESP_LOGE(LOG_TAG, "Characteristic already has a handle.");
+		return;
+	}
+
+	m_pService = pService; // Save the service for to which this characteristic belongs.
+
+	ESP_LOGD(LOG_TAG, "Registering characteristic (esp_ble_gatts_add_char): uuid: %s, service: %s",
+		getUUID().toString().c_str(),
+		m_pService->toString().c_str());
+
+	esp_attr_control_t control;
+	control.auto_rsp = ESP_GATT_RSP_BY_APP;
+
+	m_semaphoreCreateEvt.take("executeCreate");
+
+	/*
+	esp_attr_value_t value;
+	value.attr_len     = m_value.getLength();
+	value.attr_max_len = ESP_GATT_MAX_ATTR_LEN;
+	value.attr_value   = m_value.getData();
+	*/
+
+	esp_err_t errRc = ::esp_ble_gatts_add_char(
+		m_pService->getHandle(),
+		getUUID().getNative(),
+		static_cast<esp_gatt_perm_t>(ESP_GATT_PERM_READ | ESP_GATT_PERM_WRITE),
+		getProperties(),
+		//&value,
+		nullptr,
+		&control); // Whether to auto respond or not.
+
+	if (errRc != ESP_OK) {
+		ESP_LOGE(LOG_TAG, "<< esp_ble_gatts_add_char: rc=%d %s", errRc, GeneralUtils::errorToString(errRc));
+		return;
+	}
+
+	m_semaphoreCreateEvt.wait("executeCreate");
+
+	// Now that we have registered the characteristic, we must also register all the descriptors associated with this
+	// characteristic.  We iterate through each of those and invoke the registration call to register them with the
+	// ESP environment.
+
+	BLEDescriptor* pDescriptor = m_descriptorMap.getFirst();
+
+	while (pDescriptor != nullptr) {
+		pDescriptor->executeCreate(this);
+		pDescriptor = m_descriptorMap.getNext();
+	} // End while
+
+	ESP_LOGD(LOG_TAG, "<< executeCreate");
+} // executeCreate
+
+
+/**
+ * @brief Return the BLE Descriptor for the given UUID if associated with this characteristic.
+ * @param [in] descriptorUUID The UUID of the descriptor that we wish to retrieve.
+ * @return The BLE Descriptor.  If no such descriptor is associated with the characteristic, nullptr is returned.
+ */
+BLEDescriptor* BLECharacteristic::getDescriptorByUUID(const char* descriptorUUID) {
+	return m_descriptorMap.getByUUID(BLEUUID(descriptorUUID));
+} // getDescriptorByUUID
+
+
+/**
+ * @brief Return the BLE Descriptor for the given UUID if associated with this characteristic.
+ * @param [in] descriptorUUID The UUID of the descriptor that we wish to retrieve.
+ * @return The BLE Descriptor.  If no such descriptor is associated with the characteristic, nullptr is returned.
+ */
+BLEDescriptor* BLECharacteristic::getDescriptorByUUID(BLEUUID descriptorUUID) {
+	return m_descriptorMap.getByUUID(descriptorUUID);
+} // getDescriptorByUUID
+
+
+/**
+ * @brief Get the handle of the characteristic.
+ * @return The handle of the characteristic.
+ */
+uint16_t BLECharacteristic::getHandle() {
+	return m_handle;
+} // getHandle
+
+
+esp_gatt_char_prop_t BLECharacteristic::getProperties() {
+	return m_properties;
+} // getProperties
+
+
+/**
+ * @brief Get the service associated with this characteristic.
+ */
+BLEService* BLECharacteristic::getService() {
+	return m_pService;
+} // getService
+
+
+/**
+ * @brief Get the UUID of the characteristic.
+ * @return The UUID of the characteristic.
+ */
+BLEUUID BLECharacteristic::getUUID() {
+	return m_bleUUID;
+} // getUUID
+
+
+/**
+ * @brief Retrieve the current value of the characteristic.
+ * @return A pointer to storage containing the current characteristic value.
+ */
+std::string BLECharacteristic::getValue() {
+	return m_value.getValue();
+} // getValue
+
+
+void BLECharacteristic::handleGATTServerEvent(
+		esp_gatts_cb_event_t      event,
+		esp_gatt_if_t             gatts_if,
+		esp_ble_gatts_cb_param_t* param) {
+	switch(event) {
+	// Events handled:
+	// ESP_GATTS_ADD_CHAR_EVT
+	// ESP_GATTS_WRITE_EVT
+	// ESP_GATTS_READ_EVT
+	//
+
+		// ESP_GATTS_EXEC_WRITE_EVT
+		// When we receive this event it is an indication that a previous write long needs to be committed.
+		//
+		// exec_write:
+		// - uint16_t conn_id
+		// - uint32_t trans_id
+		// - esp_bd_addr_t bda
+		// - uint8_t exec_write_flag
+		//
+		case ESP_GATTS_EXEC_WRITE_EVT: {
+			if (param->exec_write.exec_write_flag == ESP_GATT_PREP_WRITE_EXEC) {
+				m_value.commit();
+				if (m_pCallbacks != nullptr) {
+					m_pCallbacks->onWrite(this); // Invoke the onWrite callback handler.
+				}
+			} else {
+				m_value.cancel();
+			}
+
+			esp_err_t errRc = ::esp_ble_gatts_send_response(
+					gatts_if,
+					param->write.conn_id,
+					param->write.trans_id, ESP_GATT_OK, nullptr);
+			if (errRc != ESP_OK) {
+				ESP_LOGE(LOG_TAG, "esp_ble_gatts_send_response: rc=%d %s", errRc, GeneralUtils::errorToString(errRc));
+			}
+			break;
+		} // ESP_GATTS_EXEC_WRITE_EVT
+
+
+		// ESP_GATTS_ADD_CHAR_EVT - Indicate that a characteristic was added to the service.
+		// add_char:
+		// - esp_gatt_status_t status
+		// - uint16_t attr_handle
+		// - uint16_t service_handle
+		// - esp_bt_uuid_t char_uuid
+		case ESP_GATTS_ADD_CHAR_EVT: {
+			if (getUUID().equals(BLEUUID(param->add_char.char_uuid)) &&
+					getHandle() == param->add_char.attr_handle &&
+					getService()->getHandle()==param->add_char.service_handle) {
+				m_semaphoreCreateEvt.give();
+			}
+			break;
+		} // ESP_GATTS_ADD_CHAR_EVT
+
+
+		// ESP_GATTS_WRITE_EVT - A request to write the value of a characteristic has arrived.
+		//
+		// write:
+		// - uint16_t      conn_id
+		// - uint16_t      trans_id
+		// - esp_bd_addr_t bda
+		// - uint16_t      handle
+		// - uint16_t      offset
+		// - bool          need_rsp
+		// - bool          is_prep
+		// - uint16_t      len
+		// - uint8_t      *value
+		//
+		case ESP_GATTS_WRITE_EVT: {
+// We check if this write request is for us by comparing the handles in the event.  If it is for us
+// we save the new value.  Next we look at the need_rsp flag which indicates whether or not we need
+// to send a response.  If we do, then we formulate a response and send it.
+			if (param->write.handle == m_handle) {
+				if (param->write.is_prep) {
+					m_value.addPart(param->write.value, param->write.len);
+				} else {
+					setValue(param->write.value, param->write.len);
+				}
+
+				ESP_LOGD(LOG_TAG, " - Response to write event: New value: handle: %.2x, uuid: %s",
+						getHandle(), getUUID().toString().c_str());
+
+				char* pHexData = BLEUtils::buildHexData(nullptr, param->write.value, param->write.len);
+				ESP_LOGD(LOG_TAG, " - Data: length: %d, data: %s", param->write.len, pHexData);
+				free(pHexData);
+
+				if (param->write.need_rsp) {
+					esp_gatt_rsp_t rsp;
+
+					rsp.attr_value.len      = param->write.len;
+					rsp.attr_value.handle   = m_handle;
+					rsp.attr_value.offset   = param->write.offset;
+					rsp.attr_value.auth_req = ESP_GATT_AUTH_REQ_NONE;
+					memcpy(rsp.attr_value.value, param->write.value, param->write.len);
+
+					esp_err_t errRc = ::esp_ble_gatts_send_response(
+							gatts_if,
+							param->write.conn_id,
+							param->write.trans_id, ESP_GATT_OK, &rsp);
+					if (errRc != ESP_OK) {
+						ESP_LOGE(LOG_TAG, "esp_ble_gatts_send_response: rc=%d %s", errRc, GeneralUtils::errorToString(errRc));
+					}
+				} // Response needed
+
+				if (m_pCallbacks != nullptr && param->write.is_prep != true) {
+					m_pCallbacks->onWrite(this); // Invoke the onWrite callback handler.
+				}
+			} // Match on handles.
+			break;
+		} // ESP_GATTS_WRITE_EVT
+
+
+		// ESP_GATTS_READ_EVT - A request to read the value of a characteristic has arrived.
+		//
+		// read:
+		// - uint16_t      conn_id
+		// - uint32_t      trans_id
+		// - esp_bd_addr_t bda
+		// - uint16_t      handle
+		// - uint16_t      offset
+		// - bool          is_long
+		// - bool          need_rsp
+		//
+		case ESP_GATTS_READ_EVT: {
+			ESP_LOGD(LOG_TAG, "- Testing: 0x%.2x == 0x%.2x", param->read.handle, m_handle);
+			if (param->read.handle == m_handle) {
+
+				if (m_pCallbacks != nullptr) {
+					m_pCallbacks->onRead(this); // Invoke the read callback.
+				}
+
+// Here's an interesting thing.  The read request has the option of saying whether we need a response
+// or not.  What would it "mean" to receive a read request and NOT send a response back?  That feels like
+// a very strange read.
+//
+// We have to handle the case where the data we wish to send back to the client is greater than the maximum
+// packet size of 22 bytes.  In this case, we become responsible for chunking the data into uints of 22 bytes.
+// The apparent algorithm is as follows.
+// If the is_long flag is set then this is a follow on from an original read and we will already have sent at least 22 bytes.
+// If the is_long flag is not set then we need to check how much data we are going to send.  If we are sending LESS than
+// 22 bytes, then we "just" send it and thats the end of the story.
+// If we are sending 22 bytes exactly, we just send it BUT we will get a follow on request.
+// If we are sending more than 22 bytes, we send the first 22 bytes and we will get a follow on request.
+// Because of follow on request processing, we need to maintain an offset of how much data we have already sent
+// so that when a follow on request arrives, we know where to start in the data to send the next sequence.
+// Note that the indication that the client will send a follow on request is that we sent exactly 22 bytes as a response.
+// If our payload is divisible by 22 then the last response will be a response of 0 bytes in length.
+//
+// The following code has deliberately not been factored to make it fewer statements because this would cloud the
+// the logic flow comprehension.
+//
+				if (param->read.need_rsp) {
+					ESP_LOGD(LOG_TAG, "Sending a response (esp_ble_gatts_send_response)");
+					esp_gatt_rsp_t rsp;
+					std::string value = m_value.getValue();
+					if (param->read.is_long) {
+						if (value.length() - m_value.getReadOffset() < 22) {
+							// This is the last in the chain
+							rsp.attr_value.len    = value.length() - m_value.getReadOffset();
+							rsp.attr_value.offset = m_value.getReadOffset();
+							memcpy(rsp.attr_value.value, value.data() + rsp.attr_value.offset, rsp.attr_value.len);
+							m_value.setReadOffset(0);
+						} else {
+							// There will be more to come.
+							rsp.attr_value.len    = 22;
+							rsp.attr_value.offset = m_value.getReadOffset();
+							memcpy(rsp.attr_value.value, value.data() + rsp.attr_value.offset, rsp.attr_value.len);
+							m_value.setReadOffset(rsp.attr_value.offset + 22);
+						}
+					} else {
+						if (value.length() > 21) {
+							// Too big for a single shot entry.
+							m_value.setReadOffset(22);
+							rsp.attr_value.len    = 22;
+							rsp.attr_value.offset = 0;
+							memcpy(rsp.attr_value.value, value.data(), rsp.attr_value.len);
+						} else {
+							// Will fit in a single packet with no callbacks required.
+							rsp.attr_value.len    = value.length();
+							rsp.attr_value.offset = 0;
+							memcpy(rsp.attr_value.value, value.data(), rsp.attr_value.len);
+						}
+					}
+					rsp.attr_value.handle   = param->read.handle;
+					rsp.attr_value.auth_req = ESP_GATT_AUTH_REQ_NONE;
+
+					char *pHexData = BLEUtils::buildHexData(nullptr, rsp.attr_value.value, rsp.attr_value.len);
+					ESP_LOGD(LOG_TAG, " - Data: length=%d, data=%s, offset=%d", rsp.attr_value.len, pHexData, rsp.attr_value.offset);
+					free(pHexData);
+
+					esp_err_t errRc = ::esp_ble_gatts_send_response(
+							gatts_if, param->read.conn_id,
+							param->read.trans_id,
+							ESP_GATT_OK,
+							&rsp);
+					if (errRc != ESP_OK) {
+						ESP_LOGE(LOG_TAG, "esp_ble_gatts_send_response: rc=%d %s", errRc, GeneralUtils::errorToString(errRc));
+					}
+				} // Response needed
+			} // Handle matches this characteristic.
+			break;
+		} // ESP_GATTS_READ_EVT
+
+		// ESP_GATTS_CONF_EVT
+		//
+		// conf:
+		// - esp_gatt_status_t status  – The status code.
+		// - uint16_t          conn_id – The connection used.
+		//
+		case ESP_GATTS_CONF_EVT: {
+			m_semaphoreConfEvt.give();
+			break;
+		}
+
+		default: {
+			break;
+		} // default
+
+	} // switch event
+
+	// Give each of the descriptors associated with this characteristic the opportunity to handle the
+	// event.
+
+	m_descriptorMap.handleGATTServerEvent(event, gatts_if, param);
+
+} // handleGATTServerEvent
+
+
+/**
+ * @brief Send an indication.
+ * An indication is a transmission of up to the first 20 bytes of the characteristic value.  An indication
+ * will block waiting a positive confirmation from the client.
+ * @return N/A
+ */
+void BLECharacteristic::indicate() {
+
+	ESP_LOGD(LOG_TAG, ">> indicate: length: %d", m_value.getValue().length());
+
+	assert(getService() != nullptr);
+	assert(getService()->getServer() != nullptr);
+
+	GeneralUtils::hexDump((uint8_t*)m_value.getValue().data(), m_value.getValue().length());
+
+	if (getService()->getServer()->getConnectedCount() == 0) {
+		ESP_LOGD(LOG_TAG, "<< indicate: No connected clients.");
+		return;
+	}
+
+	// Test to see if we have a 0x2902 descriptor.  If we do, then check to see if indications are enabled
+	// and, if not, prevent the indication.
+
+	BLE2902 *p2902 = (BLE2902*)getDescriptorByUUID((uint16_t)0x2902);
+	if (p2902 != nullptr && !p2902->getIndications()) {
+		ESP_LOGD(LOG_TAG, "<< indications disabled; ignoring");
+		return;
+	}
+
+	if (m_value.getValue().length() > 20) {
+		ESP_LOGD(LOG_TAG, "- Truncating to 20 bytes (maximum notify size)");
+	}
+
+	size_t length = m_value.getValue().length();
+	if (length > 20) {
+		length = 20;
+	}
+
+	m_semaphoreConfEvt.take("indicate");
+
+	esp_err_t errRc = ::esp_ble_gatts_send_indicate(
+			getService()->getServer()->getGattsIf(),
+			getService()->getServer()->getConnId(),
+			getHandle(), length, (uint8_t*)m_value.getValue().data(), true); // The need_confirm = true makes this an indication.
+
+	if (errRc != ESP_OK) {
+		ESP_LOGE(LOG_TAG, "<< esp_ble_gatts_send_indicate: rc=%d %s", errRc, GeneralUtils::errorToString(errRc));
+		return;
+	}
+
+	m_semaphoreConfEvt.wait("indicate");
+	ESP_LOGD(LOG_TAG, "<< indicate");
+} // indicate
+
+
+/**
+ * @brief Send a notify.
+ * A notification is a transmission of up to the first 20 bytes of the characteristic value.  An notification
+ * will not block; it is a fire and forget.
+ * @return N/A.
+ */
+void BLECharacteristic::notify() {
+	ESP_LOGD(LOG_TAG, ">> notify: length: %d", m_value.getValue().length());
+
+
+	assert(getService() != nullptr);
+	assert(getService()->getServer() != nullptr);
+
+
+	GeneralUtils::hexDump((uint8_t*)m_value.getValue().data(), m_value.getValue().length());
+
+	if (getService()->getServer()->getConnectedCount() == 0) {
+		ESP_LOGD(LOG_TAG, "<< notify: No connected clients.");
+		return;
+	}
+
+	// Test to see if we have a 0x2902 descriptor.  If we do, then check to see if notification is enabled
+	// and, if not, prevent the notification.
+
+	BLE2902 *p2902 = (BLE2902*)getDescriptorByUUID((uint16_t)0x2902);
+	if (p2902 != nullptr && !p2902->getNotifications()) {
+		ESP_LOGD(LOG_TAG, "<< notifications disabled; ignoring");
+		return;
+	}
+
+	if (m_value.getValue().length() > 20) {
+		ESP_LOGD(LOG_TAG, "- Truncating to 20 bytes (maximum notify size)");
+	}
+
+	size_t length = m_value.getValue().length();
+	if (length > 20) {
+		length = 20;
+	}
+
+	esp_err_t errRc = ::esp_ble_gatts_send_indicate(
+			getService()->getServer()->getGattsIf(),
+			getService()->getServer()->getConnId(),
+			getHandle(), length, (uint8_t*)m_value.getValue().data(), false); // The need_confirm = false makes this a notify.
+	if (errRc != ESP_OK) {
+		ESP_LOGE(LOG_TAG, "<< esp_ble_gatts_send_indicate: rc=%d %s", errRc, GeneralUtils::errorToString(errRc));
+		return;
+	}
+
+	ESP_LOGD(LOG_TAG, "<< notify");
+} // Notify
+
+
+/**
+ * @brief Set the permission to broadcast.
+ * A characteristics has properties associated with it which define what it is capable of doing.
+ * One of these is the broadcast flag.
+ * @param [in] value The flag value of the property.
+ * @return N/A
+ */
+void BLECharacteristic::setBroadcastProperty(bool value) {
+	//ESP_LOGD(LOG_TAG, "setBroadcastProperty(%d)", value);
+	if (value) {
+		m_properties = (esp_gatt_char_prop_t)(m_properties | ESP_GATT_CHAR_PROP_BIT_BROADCAST);
+	} else {
+		m_properties = (esp_gatt_char_prop_t)(m_properties & ~ESP_GATT_CHAR_PROP_BIT_BROADCAST);
+	}
+} // setBroadcastProperty
+
+
+/**
+ * @brief Set the callback handlers for this characteristic.
+ * @param [in] pCallbacks An instance of a callbacks structure used to define any callbacks for the characteristic.
+ */
+void BLECharacteristic::setCallbacks(BLECharacteristicCallbacks* pCallbacks) {
+	ESP_LOGD(LOG_TAG, ">> setCallbacks: 0x%x", (uint32_t)pCallbacks);
+	m_pCallbacks = pCallbacks;
+	ESP_LOGD(LOG_TAG, "<< setCallbacks");
+} // setCallbacks
+
+
+/**
+ * @brief Set the BLE handle associated with this characteristic.
+ * A user program will request that a characteristic be created against a service.  When the characteristic has been
+ * registered, the service will be given a "handle" that it knows the characteristic as.  This handle is unique to the
+ * server/service but it is told to the service, not the characteristic associated with the service.  This internally
+ * exposed function can be invoked by the service against this model of the characteristic to allow the characteristic
+ * to learn its own handle.  Once the characteristic knows its own handle, it will be able to see incoming GATT events
+ * that will be propagated down to it which contain a handle value and now know that the event is destined for it.
+ * @param [in] handle The handle associated with this characteristic.
+ */
+void BLECharacteristic::setHandle(uint16_t handle) {
+	ESP_LOGD(LOG_TAG, ">> setHandle: handle=0x%.2x, characteristic uuid=%s", handle, getUUID().toString().c_str());
+	m_handle = handle;
+	ESP_LOGD(LOG_TAG, "<< setHandle");
+} // setHandle
+
+
+/**
+ * @brief Set the Indicate property value.
+ * @param [in] value Set to true if we are to allow indicate messages.
+ */
+void BLECharacteristic::setIndicateProperty(bool value) {
+	//ESP_LOGD(LOG_TAG, "setIndicateProperty(%d)", value);
+	if (value) {
+		m_properties = (esp_gatt_char_prop_t)(m_properties | ESP_GATT_CHAR_PROP_BIT_INDICATE);
+	} else {
+		m_properties = (esp_gatt_char_prop_t)(m_properties & ~ESP_GATT_CHAR_PROP_BIT_INDICATE);
+	}
+} // setIndicateProperty
+
+
+/**
+ * @brief Set the Notify property value.
+ * @param [in] value Set to true if we are to allow notification messages.
+ */
+void BLECharacteristic::setNotifyProperty(bool value) {
+	//ESP_LOGD(LOG_TAG, "setNotifyProperty(%d)", value);
+	if (value) {
+		m_properties = (esp_gatt_char_prop_t)(m_properties | ESP_GATT_CHAR_PROP_BIT_NOTIFY);
+	} else {
+		m_properties = (esp_gatt_char_prop_t)(m_properties & ~ESP_GATT_CHAR_PROP_BIT_NOTIFY);
+	}
+} // setNotifyProperty
+
+
+/**
+ * @brief Set the Read property value.
+ * @param [in] value Set to true if we are to allow reads.
+ */
+void BLECharacteristic::setReadProperty(bool value) {
+	//ESP_LOGD(LOG_TAG, "setReadProperty(%d)", value);
+	if (value) {
+		m_properties = (esp_gatt_char_prop_t)(m_properties | ESP_GATT_CHAR_PROP_BIT_READ);
+	} else {
+		m_properties = (esp_gatt_char_prop_t)(m_properties & ~ESP_GATT_CHAR_PROP_BIT_READ);
+	}
+} // setReadProperty
+
+
+/**
+ * @brief Set the value of the characteristic.
+ * @param [in] data The data to set for the characteristic.
+ * @param [in] length The length of the data in bytes.
+ */
+void BLECharacteristic::setValue(uint8_t* data, size_t length) {
+	char *pHex = BLEUtils::buildHexData(nullptr, data, length);
+	ESP_LOGD(LOG_TAG, ">> setValue: length=%d, data=%s, characteristic UUID=%s", length, pHex, getUUID().toString().c_str());
+	free(pHex);
+	if (length > ESP_GATT_MAX_ATTR_LEN) {
+		ESP_LOGE(LOG_TAG, "Size %d too large, must be no bigger than %d", length, ESP_GATT_MAX_ATTR_LEN);
+		return;
+	}
+	m_value.setValue(data, length);
+	ESP_LOGD(LOG_TAG, "<< setValue");
+} // setValue
+
+
+/**
+ * @brief Set the value of the characteristic from string data.
+ * We set the value of the characteristic from the bytes contained in the
+ * string.
+ * @param [in] Set the value of the characteristic.
+ * @return N/A.
+ */
+void BLECharacteristic::setValue(std::string value) {
+	setValue((uint8_t*)(value.data()), value.length());
+} // setValue
+
+
+/**
+ * @brief Set the Write No Response property value.
+ * @param [in] value Set to true if we are to allow writes with no response.
+ */
+void BLECharacteristic::setWriteNoResponseProperty(bool value) {
+	//ESP_LOGD(LOG_TAG, "setWriteNoResponseProperty(%d)", value);
+	if (value) {
+		m_properties = (esp_gatt_char_prop_t)(m_properties | ESP_GATT_CHAR_PROP_BIT_WRITE_NR);
+	} else {
+		m_properties = (esp_gatt_char_prop_t)(m_properties & ~ESP_GATT_CHAR_PROP_BIT_WRITE_NR);
+	}
+} // setWriteNoResponseProperty
+
+
+/**
+ * @brief Set the Write property value.
+ * @param [in] value Set to true if we are to allow writes.
+ */
+void BLECharacteristic::setWriteProperty(bool value) {
+	//ESP_LOGD(LOG_TAG, "setWriteProperty(%d)", value);
+	if (value) {
+		m_properties = (esp_gatt_char_prop_t)(m_properties | ESP_GATT_CHAR_PROP_BIT_WRITE);
+	} else {
+		m_properties = (esp_gatt_char_prop_t)(m_properties & ~ESP_GATT_CHAR_PROP_BIT_WRITE);
+	}
+} // setWriteProperty
+
+
+/**
+ * @brief Return a string representation of the characteristic.
+ * @return A string representation of the characteristic.
+ */
+std::string BLECharacteristic::toString() {
+	std::stringstream stringstream;
+	stringstream << std::hex << std::setfill('0');
+	stringstream << "UUID: " << m_bleUUID.toString() + ", handle: 0x" << std::setw(2) << m_handle;
+	stringstream << " " <<
+		((m_properties & ESP_GATT_CHAR_PROP_BIT_READ)?"Read ":"") <<
+		((m_properties & ESP_GATT_CHAR_PROP_BIT_WRITE)?"Write ":"") <<
+		((m_properties & ESP_GATT_CHAR_PROP_BIT_WRITE_NR)?"WriteNoResponse ":"") <<
+		((m_properties & ESP_GATT_CHAR_PROP_BIT_BROADCAST)?"Broadcast ":"") <<
+		((m_properties & ESP_GATT_CHAR_PROP_BIT_NOTIFY)?"Notify ":"") <<
+		((m_properties & ESP_GATT_CHAR_PROP_BIT_INDICATE)?"Indicate ":"");
+	return stringstream.str();
+} // toString
+
+BLECharacteristicCallbacks::~BLECharacteristicCallbacks() {}
+
+/**
+ * @brief Callback function to support a read request.
+ * @param [in] pCharacteristic The characteristic that is the source of the event.
+ */
+void BLECharacteristicCallbacks::onRead(BLECharacteristic *pCharacteristic) {
+	ESP_LOGD("BLECharacteristicCallbacks", ">> onRead: default");
+	ESP_LOGD("BLECharacteristicCallbacks", "<< onRead");
+} // onRead
+
+
+/**
+ * @brief Callback function to support a write request.
+ * @param [in] pCharacteristic The characteristic that is the source of the event.
+ */
+void BLECharacteristicCallbacks::onWrite(BLECharacteristic *pCharacteristic) {
+	ESP_LOGD("BLECharacteristicCallbacks", ">> onWrite: default");
+	ESP_LOGD("BLECharacteristicCallbacks", "<< onWrite");
+} // onWrite
+
+#endif /* CONFIG_BT_ENABLED */

lib/ESP32_BLE_Arduino/src/BLECharacteristic.h

@@ -0,0 +1,132 @@
+/*
+ * BLECharacteristic.h
+ *
+ *  Created on: Jun 22, 2017
+ *      Author: kolban
+ */
+
+#ifndef COMPONENTS_CPP_UTILS_BLECHARACTERISTIC_H_
+#define COMPONENTS_CPP_UTILS_BLECHARACTERISTIC_H_
+#include "sdkconfig.h"
+#if defined(CONFIG_BT_ENABLED)
+#include <string>
+#include <map>
+#include "BLEUUID.h"
+#include <esp_gatts_api.h>
+#include "BLEDescriptor.h"
+#include "BLEValue.h"
+#include "FreeRTOS.h"
+
+class BLEService;
+class BLEDescriptor;
+class BLECharacteristicCallbacks;
+
+/**
+ * @brief A management structure for %BLE descriptors.
+ */
+class BLEDescriptorMap {
+public:
+	void setByUUID(const char* uuid,  BLEDescriptor *pDescriptor);
+	void setByUUID(BLEUUID uuid,      BLEDescriptor *pDescriptor);
+	void setByHandle(uint16_t handle, BLEDescriptor *pDescriptor);
+	BLEDescriptor* getByUUID(const char* uuid);
+	BLEDescriptor* getByUUID(BLEUUID uuid);
+	BLEDescriptor* getByHandle(uint16_t handle);
+	std::string    toString();
+	void handleGATTServerEvent(
+			esp_gatts_cb_event_t      event,
+			esp_gatt_if_t             gatts_if,
+			esp_ble_gatts_cb_param_t* param);
+	BLEDescriptor* getFirst();
+	BLEDescriptor* getNext();
+private:
+	std::map<std::string, BLEDescriptor *> m_uuidMap;
+	std::map<uint16_t,    BLEDescriptor *> m_handleMap;
+	std::map<std::string, BLEDescriptor *>::iterator m_iterator;
+};
+
+
+/**
+ * @brief The model of a %BLE Characteristic.
+ *
+ * A %BLE Characteristic is an identified value container that manages a value.  It is exposed by a %BLE server and
+ * can be read and written to by a %BLE client.
+ */
+class BLECharacteristic {
+public:
+	BLECharacteristic(const char* uuid, uint32_t properties = 0);
+	BLECharacteristic(BLEUUID uuid, uint32_t properties = 0);
+	virtual ~BLECharacteristic();
+
+	void           addDescriptor(BLEDescriptor* pDescriptor);
+	BLEDescriptor* getDescriptorByUUID(const char* descriptorUUID);
+	BLEDescriptor* getDescriptorByUUID(BLEUUID descriptorUUID);
+	//size_t         getLength();
+	BLEUUID        getUUID();
+	std::string    getValue();
+
+	void indicate();
+	void notify();
+	void setBroadcastProperty(bool value);
+	void setCallbacks(BLECharacteristicCallbacks* pCallbacks);
+	void setIndicateProperty(bool value);
+	void setNotifyProperty(bool value);
+	void setReadProperty(bool value);
+	void setValue(uint8_t* data, size_t size);
+	void setValue(std::string value);
+	void setWriteProperty(bool value);
+	void setWriteNoResponseProperty(bool value);
+	std::string toString();
+	uint16_t getHandle();
+
+
+	static const uint32_t PROPERTY_READ      = 1<<0;
+	static const uint32_t PROPERTY_WRITE     = 1<<1;
+	static const uint32_t PROPERTY_NOTIFY    = 1<<2;
+	static const uint32_t PROPERTY_BROADCAST = 1<<3;
+	static const uint32_t PROPERTY_INDICATE  = 1<<4;
+	static const uint32_t PROPERTY_WRITE_NR  = 1<<5;
+
+private:
+	friend class BLEServer;
+	friend class BLEService;
+	friend class BLEDescriptor;
+	friend class BLECharacteristicMap;
+
+	BLEUUID                     m_bleUUID;
+	BLEDescriptorMap            m_descriptorMap;
+	uint16_t                    m_handle;
+	esp_gatt_char_prop_t        m_properties;
+	BLECharacteristicCallbacks* m_pCallbacks;
+	BLEService*                 m_pService;
+	BLEValue                    m_value;
+
+	void handleGATTServerEvent(
+			esp_gatts_cb_event_t      event,
+			esp_gatt_if_t             gatts_if,
+			esp_ble_gatts_cb_param_t* param);
+
+	void                 executeCreate(BLEService* pService);
+	esp_gatt_char_prop_t getProperties();
+	BLEService*          getService();
+	void                 setHandle(uint16_t handle);
+	FreeRTOS::Semaphore m_semaphoreCreateEvt = FreeRTOS::Semaphore("CreateEvt");
+	FreeRTOS::Semaphore m_semaphoreConfEvt   = FreeRTOS::Semaphore("ConfEvt");
+}; // BLECharacteristic
+
+
+/**
+ * @brief Callbacks that can be associated with a %BLE characteristic to inform of events.
+ *
+ * When a server application creates a %BLE characteristic, we may wish to be informed when there is either
+ * a read or write request to the characteristic's value.  An application can register a
+ * sub-classed instance of this class and will be notified when such an event happens.
+ */
+class BLECharacteristicCallbacks {
+public:
+	virtual ~BLECharacteristicCallbacks();
+	virtual void onRead(BLECharacteristic* pCharacteristic);
+	virtual void onWrite(BLECharacteristic* pCharacteristic);
+};
+#endif /* CONFIG_BT_ENABLED */
+#endif /* COMPONENTS_CPP_UTILS_BLECHARACTERISTIC_H_ */

lib/ESP32_BLE_Arduino/src/BLECharacteristicMap.cpp

@@ -0,0 +1,143 @@
+/*
+ * BLECharacteristicMap.cpp
+ *
+ *  Created on: Jun 22, 2017
+ *      Author: kolban
+ */
+#include "sdkconfig.h"
+#if defined(CONFIG_BT_ENABLED)
+#include <sstream>
+#include <iomanip>
+#include "BLEService.h"
+#ifdef ARDUINO_ARCH_ESP32
+#include "esp32-hal-log.h"
+#endif
+
+
+/**
+ * @brief Return the characteristic by handle.
+ * @param [in] handle The handle to look up the characteristic.
+ * @return The characteristic.
+ */
+BLECharacteristic* BLECharacteristicMap::getByHandle(uint16_t handle) {
+	return m_handleMap.at(handle);
+} // getByHandle
+
+
+/**
+ * @brief Return the characteristic by UUID.
+ * @param [in] UUID The UUID to look up the characteristic.
+ * @return The characteristic.
+ */
+BLECharacteristic* BLECharacteristicMap::getByUUID(const char* uuid) {
+    return getByUUID(BLEUUID(uuid));
+}
+
+
+/**
+ * @brief Return the characteristic by UUID.
+ * @param [in] UUID The UUID to look up the characteristic.
+ * @return The characteristic.
+ */
+BLECharacteristic* BLECharacteristicMap::getByUUID(BLEUUID uuid) {
+	for (auto &myPair : m_uuidMap) {
+		if (myPair.first->getUUID().equals(uuid)) {
+			return myPair.first;
+		}
+	}
+	//return m_uuidMap.at(uuid.toString());
+	return nullptr;
+} // getByUUID
+
+
+/**
+ * @brief Get the first characteristic in the map.
+ * @return The first characteristic in the map.
+ */
+BLECharacteristic* BLECharacteristicMap::getFirst() {
+	m_iterator = m_uuidMap.begin();
+	if (m_iterator == m_uuidMap.end()) {
+		return nullptr;
+	}
+	BLECharacteristic* pRet = m_iterator->first;
+	m_iterator++;
+	return pRet;
+} // getFirst
+
+
+/**
+ * @brief Get the next characteristic in the map.
+ * @return The next characteristic in the map.
+ */
+BLECharacteristic* BLECharacteristicMap::getNext() {
+	if (m_iterator == m_uuidMap.end()) {
+		return nullptr;
+	}
+	BLECharacteristic* pRet = m_iterator->first;
+	m_iterator++;
+	return pRet;
+} // getNext
+
+
+/**
+ * @brief Pass the GATT server event onwards to each of the characteristics found in the mapping
+ * @param [in] event
+ * @param [in] gatts_if
+ * @param [in] param
+ */
+void BLECharacteristicMap::handleGATTServerEvent(
+		esp_gatts_cb_event_t      event,
+		esp_gatt_if_t             gatts_if,
+		esp_ble_gatts_cb_param_t* param) {
+	// Invoke the handler for every Service we have.
+	for (auto &myPair : m_uuidMap) {
+		myPair.first->handleGATTServerEvent(event, gatts_if, param);
+	}
+} // handleGATTServerEvent
+
+
+/**
+ * @brief Set the characteristic by handle.
+ * @param [in] handle The handle of the characteristic.
+ * @param [in] characteristic The characteristic to cache.
+ * @return N/A.
+ */
+void BLECharacteristicMap::setByHandle(uint16_t handle,
+		BLECharacteristic *characteristic) {
+	m_handleMap.insert(std::pair<uint16_t, BLECharacteristic *>(handle, characteristic));
+} // setByHandle
+
+
+/**
+ * @brief Set the characteristic by UUID.
+ * @param [in] uuid The uuid of the characteristic.
+ * @param [in] characteristic The characteristic to cache.
+ * @return N/A.
+ */
+void BLECharacteristicMap::setByUUID(
+		BLECharacteristic *pCharacteristic,
+		BLEUUID            uuid) {
+	m_uuidMap.insert(std::pair<BLECharacteristic *, std::string>(pCharacteristic, uuid.toString()));
+} // setByUUID
+
+
+/**
+ * @brief Return a string representation of the characteristic map.
+ * @return A string representation of the characteristic map.
+ */
+std::string BLECharacteristicMap::toString() {
+	std::stringstream stringStream;
+	stringStream << std::hex << std::setfill('0');
+	int count=0;
+	for (auto &myPair: m_uuidMap) {
+		if (count > 0) {
+			stringStream << "\n";
+		}
+		count++;
+		stringStream << "handle: 0x" << std::setw(2) << myPair.first->getHandle() << ", uuid: " + myPair.first->getUUID().toString();
+	}
+	return stringStream.str();
+} // toString
+
+
+#endif /* CONFIG_BT_ENABLED */

lib/ESP32_BLE_Arduino/src/BLEClient.cpp

@@ -0,0 +1,414 @@
+/*
+ * BLEDevice.cpp
+ *
+ *  Created on: Mar 22, 2017
+ *      Author: kolban
+ */
+#include "sdkconfig.h"
+#if defined(CONFIG_BT_ENABLED)
+#include <esp_log.h>
+#include <bt.h>
+#include <esp_bt_main.h>
+#include <esp_gap_ble_api.h>
+#include <esp_gattc_api.h>
+#include "BLEClient.h"
+#include "BLEUtils.h"
+#include "BLEService.h"
+#include "GeneralUtils.h"
+#include <string>
+#include <sstream>
+#include <unordered_set>
+#ifdef ARDUINO_ARCH_ESP32
+#include "esp32-hal-log.h"
+#endif
+
+/*
+ * Design
+ * ------
+ * When we perform a searchService() requests, we are asking the BLE server to return each of the services
+ * that it exposes.  For each service, we received an ESP_GATTC_SEARCH_RES_EVT event which contains details
+ * of the exposed service including its UUID.
+ *
+ * The objects we will invent for a BLEClient will be as follows:
+ * * BLERemoteService - A model of a remote service.
+ * * BLERemoteCharacteristic - A model of a remote characteristic
+ * * BLERemoteDescriptor - A model of a remote descriptor.
+ *
+ * Since there is a hierarchical relationship here, we will have the idea that from a BLERemoteService will own
+ * zero or more remote characteristics and a BLERemoteCharacteristic will own zero or more remote BLEDescriptors.
+ *
+ * We will assume that a BLERemoteService contains a map that maps BLEUUIDs to the set of owned characteristics
+ * and that a BLECharacteristic contains a map that maps BLEUUIDs to the set of owned descriptors.
+ *
+ *
+ */
+static const char* LOG_TAG = "BLEClient";
+
+BLEClient::BLEClient() {
+	m_pClientCallbacks = nullptr;
+	m_conn_id          = 0;
+	m_gattc_if         = 0;
+	m_haveServices     = false;
+	m_isConnected      = false;  // Initially, we are flagged as not connected.
+} // BLEClient
+
+
+/**
+ * @brief Destructor.
+ */
+BLEClient::~BLEClient() {
+	// We may have allocated service references associated with this client.  Before we are finished
+	// with the client, we must release resources.
+	for (auto &myPair : m_servicesMap) {
+	   delete myPair.second;
+	}
+	m_servicesMap.clear();
+} // ~BLEClient
+
+
+/**
+ * @brief Connect to the partner (BLE Server).
+ * @param [in] address The address of the partner.
+ * @return True on success.
+ */
+bool BLEClient::connect(BLEAddress address) {
+	ESP_LOGD(LOG_TAG, ">> connect(%s)", address.toString().c_str());
+
+// We need the connection handle that we get from registering the application.  We register the app
+// and then block on its completion.  When the event has arrived, we will have the handle.
+	m_semaphoreRegEvt.take("connect");
+
+	esp_err_t errRc = ::esp_ble_gattc_app_register(0);
+	if (errRc != ESP_OK) {
+		ESP_LOGE(LOG_TAG, "esp_ble_gattc_app_register: rc=%d %s", errRc, GeneralUtils::errorToString(errRc));
+		return false;
+	}
+
+	m_semaphoreRegEvt.wait("connect");
+
+	m_peerAddress = address;
+
+	// Perform the open connection request against the target BLE Server.
+	m_semaphoreOpenEvt.take("connect");
+	errRc = ::esp_ble_gattc_open(
+		getGattcIf(),
+		*getPeerAddress().getNative(), // address
+		1                              // direct connection
+	);
+	if (errRc != ESP_OK) {
+		ESP_LOGE(LOG_TAG, "esp_ble_gattc_open: rc=%d %s", errRc, GeneralUtils::errorToString(errRc));
+		return false;
+	}
+
+	uint32_t rc = m_semaphoreOpenEvt.wait("connect");
+	ESP_LOGD(LOG_TAG, "<< connect(), rc=%d", rc==ESP_GATT_OK);
+	return rc == ESP_GATT_OK;
+} // connect
+
+
+/**
+ * @brief Disconnect from the peer.
+ * @return N/A.
+ */
+void BLEClient::disconnect() {
+	ESP_LOGD(LOG_TAG, ">> disconnect()");
+	esp_err_t errRc = ::esp_ble_gattc_close(getGattcIf(), getConnId());
+	if (errRc != ESP_OK) {
+		ESP_LOGE(LOG_TAG, "esp_ble_gattc_close: rc=%d %s", errRc, GeneralUtils::errorToString(errRc));
+		return;
+	}
+	esp_ble_gattc_app_unregister(getGattcIf());
+	m_peerAddress = BLEAddress("00:00:00:00:00:00");
+	ESP_LOGD(LOG_TAG, "<< disconnect()");
+} // disconnect
+
+
+/**
+ * @brief Handle GATT Client events
+ */
+void BLEClient::gattClientEventHandler(
+	esp_gattc_cb_event_t      event,
+	esp_gatt_if_t             gattc_if,
+	esp_ble_gattc_cb_param_t* evtParam) {
+
+	// Execute handler code based on the type of event received.
+	switch(event) {
+
+		//
+		// ESP_GATTC_DISCONNECT_EVT
+		//
+		// disconnect:
+		// - esp_gatt_status_t status
+		// - uint16_t          conn_id
+		// - esp_bd_addr_t     remote_bda
+		case ESP_GATTC_DISCONNECT_EVT: {
+				// If we receive a disconnect event, set the class flag that indicates that we are
+				// no longer connected.
+				m_isConnected = false;
+				break;
+		} // ESP_GATTC_DISCONNECT_EVT
+
+
+		//
+		// ESP_GATTC_OPEN_EVT
+		//
+		// open:
+		// - esp_gatt_status_t status
+		// - uint16_t          conn_id
+		// - esp_bd_addr_t     remote_bda
+		// - uint16_t          mtu
+		//
+		case ESP_GATTC_OPEN_EVT: {
+			m_conn_id = evtParam->open.conn_id;
+			if (m_pClientCallbacks != nullptr) {
+				m_pClientCallbacks->onConnect(this);
+			}
+			if (evtParam->open.status == ESP_GATT_OK) {
+				m_isConnected = true;   // Flag us as connected.
+			}
+			m_semaphoreOpenEvt.give(evtParam->open.status);
+			break;
+		} // ESP_GATTC_OPEN_EVT
+
+
+		//
+		// ESP_GATTC_REG_EVT
+		//
+		// reg:
+		// esp_gatt_status_t status
+		// uint16_t          app_id
+		//
+		case ESP_GATTC_REG_EVT: {
+			m_gattc_if = gattc_if;
+			m_semaphoreRegEvt.give();
+			break;
+		} // ESP_GATTC_REG_EVT
+
+
+		//
+		// ESP_GATTC_SEARCH_CMPL_EVT
+		//
+		// search_cmpl:
+		// - esp_gatt_status_t status
+		// - uint16_t          conn_id
+		//
+		case ESP_GATTC_SEARCH_CMPL_EVT: {
+			m_semaphoreSearchCmplEvt.give();
+			break;
+		} // ESP_GATTC_SEARCH_CMPL_EVT
+
+
+		//
+		// ESP_GATTC_SEARCH_RES_EVT
+		//
+		// search_res:
+		// - uint16_t      conn_id
+		// - uint16_t      start_handle
+		// - uint16_t      end_handle
+		// - esp_gatt_id_t srvc_id
+		//
+		case ESP_GATTC_SEARCH_RES_EVT: {
+			BLEUUID uuid = BLEUUID(evtParam->search_res.srvc_id);
+			BLERemoteService* pRemoteService = new BLERemoteService(
+				evtParam->search_res.srvc_id,
+				this,
+				evtParam->search_res.start_handle,
+				evtParam->search_res.end_handle
+			);
+			m_servicesMap.insert(std::pair<std::string, BLERemoteService *>(uuid.toString(), pRemoteService));
+			break;
+		} // ESP_GATTC_SEARCH_RES_EVT
+
+
+		default: {
+			break;
+		}
+	} // Switch
+
+	// Pass the request on to all services.
+	for (auto &myPair : m_servicesMap) {
+	   myPair.second->gattClientEventHandler(event, gattc_if, evtParam);
+	}
+
+} // gattClientEventHandler
+
+
+uint16_t BLEClient::getConnId() {
+	return m_conn_id;
+} // getConnId
+
+
+
+esp_gatt_if_t BLEClient::getGattcIf() {
+	return m_gattc_if;
+} // getGattcIf
+
+
+/**
+ * @brief Retrieve the address of the peer.
+ *
+ * Returns the Bluetooth device address of the %BLE peer to which this client is connected.
+ */
+BLEAddress BLEClient::getPeerAddress() {
+	return m_peerAddress;
+} // getAddress
+
+
+/**
+ * @brief Ask the BLE server for the RSSI value.
+ * @return The RSSI value.
+ */
+int BLEClient::getRssi() {
+	ESP_LOGD(LOG_TAG, ">> getRssi()");
+	if (!isConnected()) {
+		ESP_LOGD(LOG_TAG, "<< getRssi(): Not connected");
+		return 0;
+	}
+	// We make the API call to read the RSSI value which is an asynchronous operation.  We expect to receive
+	// an ESP_GAP_BLE_READ_RSSI_COMPLETE_EVT to indicate completion.
+	//
+	m_semaphoreRssiCmplEvt.take("getRssi");
+	esp_err_t rc = ::esp_ble_gap_read_rssi(*getPeerAddress().getNative());
+	if (rc != ESP_OK) {
+		ESP_LOGE(LOG_TAG, "<< getRssi: esp_ble_gap_read_rssi: rc=%d %s", rc, GeneralUtils::errorToString(rc));
+		return 0;
+	}
+	int rssiValue = m_semaphoreRssiCmplEvt.wait("getRssi");
+	ESP_LOGD(LOG_TAG, "<< getRssi(): %d", rssiValue);
+	return rssiValue;
+} // getRssi
+
+
+/**
+ * @brief Get the service BLE Remote Service instance corresponding to the uuid.
+ * @param [in] uuid The UUID of the service being sought.
+ * @return A reference to the Service or nullptr if don't know about it.
+ */
+BLERemoteService* BLEClient::getService(const char* uuid) {
+    return getService(BLEUUID(uuid));
+} // getService
+
+
+/**
+ * @brief Get the service object corresponding to the uuid.
+ * @param [in] uuid The UUID of the service being sought.
+ * @return A reference to the Service or nullptr if don't know about it.
+ */
+BLERemoteService* BLEClient::getService(BLEUUID uuid) {
+	ESP_LOGD(LOG_TAG, ">> getService: uuid: %s", uuid.toString().c_str());
+// Design
+// ------
+// We wish to retrieve the service given its UUID.  It is possible that we have not yet asked the
+// device what services it has in which case we have nothing to match against.  If we have not
+// asked the device about its services, then we do that now.  Once we get the results we can then
+// examine the services map to see if it has the service we are looking for.
+	if (!m_haveServices) {
+		getServices();
+	}
+	std::string uuidStr = uuid.toString();
+	for (auto &myPair : m_servicesMap) {
+		if (myPair.first == uuidStr) {
+			ESP_LOGD(LOG_TAG, "<< getService: found the service with uuid: %s", uuid.toString().c_str());
+			return myPair.second;
+		}
+	} // End of each of the services.
+	ESP_LOGD(LOG_TAG, "<< getService: not found");
+	return nullptr;
+} // getService
+
+
+/**
+ * @brief Ask the remote %BLE server for its services.
+ * A %BLE Server exposes a set of services for its partners.  Here we ask the server for its set of
+ * services and wait until we have received them all.
+ * @return N/A
+ */
+std::map<std::string, BLERemoteService*>* BLEClient::getServices() {
+/*
+ * Design
+ * ------
+ * We invoke esp_ble_gattc_search_service.  This will request a list of the service exposed by the
+ * peer BLE partner to be returned as events.  Each event will be an an instance of ESP_GATTC_SEARCH_RES_EVT
+ * and will culminate with an ESP_GATTC_SEARCH_CMPL_EVT when all have been received.
+ */
+	ESP_LOGD(LOG_TAG, ">> getServices");
+	m_servicesMap.clear();
+	esp_err_t errRc = esp_ble_gattc_search_service(
+		getGattcIf(),
+		getConnId(),
+		nullptr            // Filter UUID
+	);
+	m_semaphoreSearchCmplEvt.take("getServices");
+	if (errRc != ESP_OK) {
+		ESP_LOGE(LOG_TAG, "esp_ble_gattc_search_service: rc=%d %s", errRc, GeneralUtils::errorToString(errRc));
+		return &m_servicesMap;
+	}
+	m_semaphoreSearchCmplEvt.wait("getServices");
+	m_haveServices = true; // Remember that we now have services.
+	ESP_LOGD(LOG_TAG, "<< getServices");
+	return &m_servicesMap;
+} // getServices
+
+/**
+ * @brief Handle a received GAP event.
+ *
+ * @param [in] event
+ * @param [in] param
+ */
+void BLEClient::handleGAPEvent(
+		esp_gap_ble_cb_event_t  event,
+		esp_ble_gap_cb_param_t* param) {
+	ESP_LOGD(LOG_TAG, "BLEClient ... handling GAP event!");
+	switch(event) {
+		//
+		// ESP_GAP_BLE_READ_RSSI_COMPLETE_EVT
+		//
+		// read_rssi_cmpl
+		// - esp_bt_status_t status
+		// - int8_t rssi
+		// - esp_bd_addr_t remote_addr
+		//
+		case ESP_GAP_BLE_READ_RSSI_COMPLETE_EVT: {
+			m_semaphoreRssiCmplEvt.give((uint32_t)param->read_rssi_cmpl.rssi);
+			break;
+		} // ESP_GAP_BLE_READ_RSSI_COMPLETE_EVT
+
+		default:
+			break;
+	}
+} // handleGAPEvent
+
+
+/**
+ * @brief Are we connected to a partner?
+ * @return True if we are connected and false if we are not connected.
+ */
+bool BLEClient::isConnected() {
+	return m_isConnected;
+} // isConnected
+
+
+/**
+ * @brief Set the callbacks that will be invoked.
+ */
+void BLEClient::setClientCallbacks(BLEClientCallbacks* pClientCallbacks) {
+	m_pClientCallbacks = pClientCallbacks;
+} // setClientCallbacks
+
+
+/**
+ * @brief Return a string representation of this client.
+ * @return A string representation of this client.
+ */
+std::string BLEClient::toString() {
+	std::ostringstream ss;
+	ss << "peer address: " << m_peerAddress.toString();
+	ss << "\nServices:\n";
+	for (auto &myPair : m_servicesMap) {
+		ss << myPair.second->toString() << "\n";
+	  // myPair.second is the value
+	}
+	return ss.str();
+} // toString
+
+#endif // CONFIG_BT_ENABLED

lib/ESP32_BLE_Arduino/src/BLEClient.h

@@ -0,0 +1,85 @@
+/*
+ * BLEDevice.h
+ *
+ *  Created on: Mar 22, 2017
+ *      Author: kolban
+ */
+
+#ifndef MAIN_BLEDEVICE_H_
+#define MAIN_BLEDEVICE_H_
+
+#include "sdkconfig.h"
+#if defined(CONFIG_BT_ENABLED)
+
+#include <esp_gattc_api.h>
+#include <string.h>
+#include <map>
+#include <string>
+#include "BLERemoteService.h"
+#include "BLEService.h"
+#include "BLEAddress.h"
+
+class BLERemoteService;
+class BLEClientCallbacks;
+
+/**
+ * @brief A model of a %BLE client.
+ */
+class BLEClient {
+public:
+	BLEClient();
+	~BLEClient();
+	bool                                       connect(BLEAddress address);
+	void                                       disconnect();
+	BLEAddress                                 getPeerAddress();
+	int                                        getRssi();
+	std::map<std::string, BLERemoteService*>*  getServices();
+	BLERemoteService*                          getService(const char* uuid);
+	BLERemoteService*                          getService(BLEUUID uuid);
+	void                                       handleGAPEvent(
+		                                            esp_gap_ble_cb_event_t  event,
+                                                esp_ble_gap_cb_param_t* param);
+	bool                                       isConnected();
+	void                                       setClientCallbacks(BLEClientCallbacks *pClientCallbacks);
+	std::string                                toString();
+
+private:
+	friend class BLEDevice;
+	friend class BLERemoteService;
+	friend class BLERemoteCharacteristic;
+	friend class BLERemoteDescriptor;
+
+	void                                       gattClientEventHandler(
+		esp_gattc_cb_event_t event,
+		esp_gatt_if_t gattc_if,
+		esp_ble_gattc_cb_param_t* param);
+
+	uint16_t                                   getConnId();
+	esp_gatt_if_t                              getGattcIf();
+	BLEAddress    m_peerAddress = BLEAddress((uint8_t*)"\0\0\0\0\0\0");
+	uint16_t      m_conn_id;
+//	int           m_deviceType;
+	esp_gatt_if_t m_gattc_if;
+	bool          m_isConnected;
+
+	BLEClientCallbacks* m_pClientCallbacks;
+	FreeRTOS::Semaphore m_semaphoreRegEvt        = FreeRTOS::Semaphore("RegEvt");
+	FreeRTOS::Semaphore m_semaphoreOpenEvt       = FreeRTOS::Semaphore("OpenEvt");
+	FreeRTOS::Semaphore m_semaphoreSearchCmplEvt = FreeRTOS::Semaphore("SearchCmplEvt");
+	FreeRTOS::Semaphore m_semaphoreRssiCmplEvt   = FreeRTOS::Semaphore("RssiCmplEvt");
+	std::map<std::string, BLERemoteService*> m_servicesMap;
+	bool m_haveServices; // Have we previously obtain the set of services.
+}; // class BLEDevice
+
+
+/**
+ * @brief Callbacks associated with a %BLE client.
+ */
+class BLEClientCallbacks {
+public:
+	virtual ~BLEClientCallbacks() {};
+	virtual void onConnect(BLEClient *pClient) = 0;
+};
+
+#endif // CONFIG_BT_ENABLED
+#endif /* MAIN_BLEDEVICE_H_ */

lib/ESP32_BLE_Arduino/src/BLEDescriptor.cpp

@@ -0,0 +1,339 @@
+/*
+ * BLEDescriptor.cpp
+ *
+ *  Created on: Jun 22, 2017
+ *      Author: kolban
+ */
+#include "sdkconfig.h"
+#if defined(CONFIG_BT_ENABLED)
+#include <sstream>
+#include <string.h>
+#include <iomanip>
+#include <stdlib.h>
+#include "sdkconfig.h"
+#include <esp_log.h>
+#include <esp_err.h>
+#include "BLEService.h"
+#include "BLEDescriptor.h"
+#include "GeneralUtils.h"
+#ifdef ARDUINO_ARCH_ESP32
+#include "esp32-hal-log.h"
+#endif
+
+static const char* LOG_TAG = "BLEDescriptor";
+
+
+#define NULL_HANDLE (0xffff)
+
+
+/**
+ * @brief BLEDescriptor constructor.
+ */
+BLEDescriptor::BLEDescriptor(const char* uuid) : BLEDescriptor(BLEUUID(uuid)) {
+}	
+
+/**
+ * @brief BLEDescriptor constructor.
+ */
+BLEDescriptor::BLEDescriptor(BLEUUID uuid) {
+	m_bleUUID            = uuid;
+	m_value.attr_value   = (uint8_t *)malloc(ESP_GATT_MAX_ATTR_LEN); // Allocate storage for the value.
+	m_value.attr_len     = 0;
+	m_value.attr_max_len = ESP_GATT_MAX_ATTR_LEN;
+	m_handle             = NULL_HANDLE;
+	m_pCharacteristic    = nullptr;   // No initial characteristic.
+	m_pCallback          = nullptr;   // No initial callback.
+
+} // BLEDescriptor
+
+
+/**
+ * @brief BLEDescriptor destructor.
+ */
+BLEDescriptor::~BLEDescriptor() {
+	free(m_value.attr_value);
+} // ~BLEDescriptor
+
+
+/**
+ * @brief Execute the creation of the descriptor with the BLE runtime in ESP.
+ * @param [in] pCharacteristic The characteristic to which to register this descriptor.
+ */
+void BLEDescriptor::executeCreate(BLECharacteristic* pCharacteristic) {
+	ESP_LOGD(LOG_TAG, ">> executeCreate(): %s", toString().c_str());
+
+	if (m_handle != NULL_HANDLE) {
+		ESP_LOGE(LOG_TAG, "Descriptor already has a handle.");
+		return;
+	}
+
+	m_pCharacteristic = pCharacteristic; // Save the characteristic associated with this service.
+
+	esp_attr_control_t control;
+	control.auto_rsp = ESP_GATT_RSP_BY_APP;
+	m_semaphoreCreateEvt.take("executeCreate");
+	esp_err_t errRc = ::esp_ble_gatts_add_char_descr(
+			pCharacteristic->getService()->getHandle(),
+			getUUID().getNative(),
+			(esp_gatt_perm_t)(ESP_GATT_PERM_READ | ESP_GATT_PERM_WRITE),
+			&m_value,
+			&control);
+	if (errRc != ESP_OK) {
+		ESP_LOGE(LOG_TAG, "<< esp_ble_gatts_add_char_descr: rc=%d %s", errRc, GeneralUtils::errorToString(errRc));
+		return;
+	}
+
+	m_semaphoreCreateEvt.wait("executeCreate");
+	ESP_LOGD(LOG_TAG, "<< executeCreate");
+} // executeCreate
+
+
+/**
+ * @brief Get the BLE handle for this descriptor.
+ * @return The handle for this descriptor.
+ */
+uint16_t BLEDescriptor::getHandle() {
+	return m_handle;
+} // getHandle
+
+
+/**
+ * @brief Get the length of the value of this descriptor.
+ * @return The length (in bytes) of the value of this descriptor.
+ */
+size_t BLEDescriptor::getLength() {
+	return m_value.attr_len;
+} // getLength
+
+
+/**
+ * @brief Get the UUID of the descriptor.
+ */
+BLEUUID BLEDescriptor::getUUID() {
+	return m_bleUUID;
+} // getUUID
+
+
+
+/**
+ * @brief Get the value of this descriptor.
+ * @return A pointer to the value of this descriptor.
+ */
+uint8_t* BLEDescriptor::getValue() {
+	return m_value.attr_value;
+} // getValue
+
+
+/**
+ * @brief Handle GATT server events for the descripttor.
+ * @param [in] event
+ * @param [in] gatts_if
+ * @param [in] param
+ */
+void BLEDescriptor::handleGATTServerEvent(
+		esp_gatts_cb_event_t      event,
+		esp_gatt_if_t             gatts_if,
+		esp_ble_gatts_cb_param_t *param) {
+	switch(event) {
+		// ESP_GATTS_ADD_CHAR_DESCR_EVT
+		//
+		// add_char_descr:
+		// - esp_gatt_status_t status
+		// - uint16_t          attr_handle
+		// - uint16_t          service_handle
+		// - esp_bt_uuid_t     char_uuid
+		case ESP_GATTS_ADD_CHAR_DESCR_EVT: {
+			/*
+			ESP_LOGD(LOG_TAG, "DEBUG: m_pCharacteristic: %x", (uint32_t)m_pCharacteristic);
+			ESP_LOGD(LOG_TAG, "DEBUG: m_bleUUID: %s, add_char_descr.char_uuid: %s, equals: %d",
+				m_bleUUID.toString().c_str(),
+				BLEUUID(param->add_char_descr.char_uuid).toString().c_str(),
+				m_bleUUID.equals(BLEUUID(param->add_char_descr.char_uuid)));
+			ESP_LOGD(LOG_TAG, "DEBUG: service->getHandle: %x, add_char_descr.service_handle: %x",
+					m_pCharacteristic->getService()->getHandle(), param->add_char_descr.service_handle);
+			ESP_LOGD(LOG_TAG, "DEBUG: service->lastCharacteristic: %x",
+					(uint32_t)m_pCharacteristic->getService()->getLastCreatedCharacteristic());
+					*/
+			if (m_pCharacteristic != nullptr &&
+					m_bleUUID.equals(BLEUUID(param->add_char_descr.char_uuid)) &&
+					m_pCharacteristic->getService()->getHandle() == param->add_char_descr.service_handle &&
+					m_pCharacteristic == m_pCharacteristic->getService()->getLastCreatedCharacteristic()) {
+				setHandle(param->add_char_descr.attr_handle);
+				m_semaphoreCreateEvt.give();
+			}
+			break;
+		} // ESP_GATTS_ADD_CHAR_DESCR_EVT
+
+		// ESP_GATTS_WRITE_EVT - A request to write the value of a descriptor has arrived.
+		//
+		// write:
+		// - uint16_t conn_id
+		// - uint16_t trans_id
+		// - esp_bd_addr_t bda
+		// - uint16_t handle
+		// - uint16_t offset
+		// - bool need_rsp
+		// - bool is_prep
+		// - uint16_t len
+		// - uint8_t *value
+		case ESP_GATTS_WRITE_EVT: {
+			if (param->write.handle == m_handle) {
+				setValue(param->write.value, param->write.len);   // Set the value of the descriptor.
+
+				esp_gatt_rsp_t rsp;   // Build a response.
+				rsp.attr_value.len    = getLength();
+				rsp.attr_value.handle = m_handle;
+				rsp.attr_value.offset = 0;
+				rsp.attr_value.auth_req = ESP_GATT_AUTH_REQ_NONE;
+				memcpy(rsp.attr_value.value, getValue(), rsp.attr_value.len);
+				esp_err_t errRc = ::esp_ble_gatts_send_response(
+						gatts_if,
+						param->write.conn_id,
+						param->write.trans_id,
+						ESP_GATT_OK,
+						&rsp);
+
+				if (errRc != ESP_OK) {   // Check the return code from the send of the response.
+					ESP_LOGE(LOG_TAG, "esp_ble_gatts_send_response: rc=%d %s", errRc, GeneralUtils::errorToString(errRc));
+				}
+
+				if (m_pCallback != nullptr) {   // We have completed the write, if there is a user supplied callback handler, invoke it now.
+					m_pCallback->onWrite(this);   // Invoke the onWrite callback handler.
+				}
+			}  // End of ... this is our handle.
+
+			break;
+		} // ESP_GATTS_WRITE_EVT
+
+		// ESP_GATTS_READ_EVT - A request to read the value of a descriptor has arrived.
+		//
+		// read:
+		// - uint16_t conn_id
+		// - uint32_t trans_id
+		// - esp_bd_addr_t bda
+		// - uint16_t handle
+		// - uint16_t offset
+		// - bool is_long
+		// - bool need_rsp
+		//
+		case ESP_GATTS_READ_EVT: {
+			if (param->read.handle == m_handle) {  // If this event is for this descriptor ... process it
+
+				if (m_pCallback != nullptr) {   // If we have a user supplied callback, invoke it now.
+					m_pCallback->onRead(this);    // Invoke the onRead callback method in the callback handler.
+				}
+
+				if (param->read.need_rsp) {   // Do we need a response
+					ESP_LOGD(LOG_TAG, "Sending a response (esp_ble_gatts_send_response)");
+					esp_gatt_rsp_t rsp;
+					rsp.attr_value.len      = getLength();
+					rsp.attr_value.handle   = param->read.handle;
+					rsp.attr_value.offset   = 0;
+					rsp.attr_value.auth_req = ESP_GATT_AUTH_REQ_NONE;
+					memcpy(rsp.attr_value.value, getValue(), rsp.attr_value.len);
+
+					esp_err_t errRc = ::esp_ble_gatts_send_response(
+							gatts_if,
+							param->read.conn_id,
+							param->read.trans_id,
+							ESP_GATT_OK,
+							&rsp);
+
+					if (errRc != ESP_OK) {   // Check the return code from the send of the response.
+						ESP_LOGE(LOG_TAG, "esp_ble_gatts_send_response: rc=%d %s", errRc, GeneralUtils::errorToString(errRc));
+					}
+				} // End of need a response.
+			} // End of this is our handle
+			break;
+		} // ESP_GATTS_READ_EVT
+
+		default: {
+			break;
+		}
+	}// switch event
+} // handleGATTServerEvent
+
+
+/**
+ * @brief Set the callback handlers for this descriptor.
+ * @param [in] pCallbacks An instance of a callback structure used to define any callbacks for the descriptor.
+ */
+void BLEDescriptor::setCallbacks(BLEDescriptorCallbacks* pCallback) {
+	ESP_LOGD(LOG_TAG, ">> setCallbacks: 0x%x", (uint32_t)pCallback);
+	m_pCallback = pCallback;
+	ESP_LOGD(LOG_TAG, "<< setCallbacks");
+} // setCallbacks
+
+
+/**
+ * @brief Set the handle of this descriptor.
+ * Set the handle of this descriptor to be the supplied value.
+ * @param [in] handle The handle to be associated with this descriptor.
+ * @return N/A.
+ */
+void BLEDescriptor::setHandle(uint16_t handle) {
+	ESP_LOGD(LOG_TAG, ">> setHandle(0x%.2x): Setting descriptor handle to be 0x%.2x", handle, handle);
+	m_handle = handle;
+	ESP_LOGD(LOG_TAG, "<< setHandle()");
+} // setHandle
+
+
+/**
+ * @brief Set the value of the descriptor.
+ * @param [in] data The data to set for the descriptor.
+ * @param [in] length The length of the data in bytes.
+ */
+void BLEDescriptor::setValue(uint8_t* data, size_t length) {
+	if (length > ESP_GATT_MAX_ATTR_LEN) {
+		ESP_LOGE(LOG_TAG, "Size %d too large, must be no bigger than %d", length, ESP_GATT_MAX_ATTR_LEN);
+		return;
+	}
+	m_value.attr_len = length;
+	memcpy(m_value.attr_value, data, length);
+} // setValue
+
+
+/**
+ * @brief Set the value of the descriptor.
+ * @param [in] value The value of the descriptor in string form.
+ */
+void BLEDescriptor::setValue(std::string value) {
+	setValue((uint8_t *)value.data(), value.length());
+} // setValue
+
+
+/**
+ * @brief Return a string representation of the descriptor.
+ * @return A string representation of the descriptor.
+ */
+std::string BLEDescriptor::toString() {
+	std::stringstream stringstream;
+	stringstream << std::hex << std::setfill('0');
+	stringstream << "UUID: " << m_bleUUID.toString() + ", handle: 0x" << std::setw(2) << m_handle;
+	return stringstream.str();
+} // toString
+
+
+BLEDescriptorCallbacks::~BLEDescriptorCallbacks() {}
+
+/**
+ * @brief Callback function to support a read request.
+ * @param [in] pDescriptor The descriptor that is the source of the event.
+ */
+void BLEDescriptorCallbacks::onRead(BLEDescriptor* pDescriptor) {
+	ESP_LOGD("BLEDescriptorCallbacks", ">> onRead: default");
+	ESP_LOGD("BLEDescriptorCallbacks", "<< onRead");
+} // onRead
+
+
+/**
+ * @brief Callback function to support a write request.
+ * @param [in] pDescriptor The descriptor that is the source of the event.
+ */
+void BLEDescriptorCallbacks::onWrite(BLEDescriptor* pDescriptor) {
+	ESP_LOGD("BLEDescriptorCallbacks", ">> onWrite: default");
+	ESP_LOGD("BLEDescriptorCallbacks", "<< onWrite");
+} // onWrite
+
+
+#endif /* CONFIG_BT_ENABLED */

lib/ESP32_BLE_Arduino/src/BLEDescriptor.h

@@ -0,0 +1,71 @@
+/*
+ * BLEDescriptor.h
+ *
+ *  Created on: Jun 22, 2017
+ *      Author: kolban
+ */
+
+#ifndef COMPONENTS_CPP_UTILS_BLEDESCRIPTOR_H_
+#define COMPONENTS_CPP_UTILS_BLEDESCRIPTOR_H_
+#include "sdkconfig.h"
+#if defined(CONFIG_BT_ENABLED)
+#include <string>
+#include "BLEUUID.h"
+#include "BLECharacteristic.h"
+#include <esp_gatts_api.h>
+#include "FreeRTOS.h"
+
+class BLEService;
+class BLECharacteristic;
+class BLEDescriptorCallbacks;
+
+/**
+ * @brief A model of a %BLE descriptor.
+ */
+class BLEDescriptor {
+public:
+	BLEDescriptor(const char* uuid);
+	BLEDescriptor(BLEUUID uuid);
+	virtual ~BLEDescriptor();
+
+	uint16_t getHandle();
+	size_t   getLength();
+	BLEUUID  getUUID();
+	uint8_t* getValue();
+	void handleGATTServerEvent(
+			esp_gatts_cb_event_t      event,
+			esp_gatt_if_t             gatts_if,
+			esp_ble_gatts_cb_param_t* param);
+	void setCallbacks(BLEDescriptorCallbacks* pCallbacks);
+	void setValue(uint8_t* data, size_t size);
+	void setValue(std::string value);
+	std::string toString();
+
+private:
+	friend class BLEDescriptorMap;
+	friend class BLECharacteristic;
+	BLEUUID              m_bleUUID;
+	esp_attr_value_t     m_value;
+	uint16_t             m_handle;
+	BLECharacteristic*   m_pCharacteristic;
+	BLEDescriptorCallbacks* m_pCallback;
+	void executeCreate(BLECharacteristic* pCharacteristic);
+	void setHandle(uint16_t handle);
+	FreeRTOS::Semaphore m_semaphoreCreateEvt = FreeRTOS::Semaphore("CreateEvt");
+};
+
+/**
+ * @brief Callbacks that can be associated with a %BLE descriptors to inform of events.
+ *
+ * When a server application creates a %BLE descriptor, we may wish to be informed when there is either
+ * a read or write request to the descriptors value.  An application can register a
+ * sub-classed instance of this class and will be notified when such an event happens.
+ */
+class BLEDescriptorCallbacks {
+public:
+	virtual ~BLEDescriptorCallbacks();
+	virtual void onRead(BLEDescriptor* pDescriptor);
+	virtual void onWrite(BLEDescriptor* pDescriptor);
+};
+#endif /* CONFIG_BT_ENABLED */
+#endif /* COMPONENTS_CPP_UTILS_BLEDESCRIPTOR_H_ */

lib/ESP32_BLE_Arduino/src/BLEDescriptorMap.cpp

@@ -0,0 +1,152 @@
+/*
+ * BLEDescriptorMap.cpp
+ *
+ *  Created on: Jun 22, 2017
+ *      Author: kolban
+ */
+#include "sdkconfig.h"
+#if defined(CONFIG_BT_ENABLED)
+#include <sstream>
+#include <iomanip>
+#include "BLECharacteristic.h"
+#include "BLEDescriptor.h"
+#include <esp_gatts_api.h>   // ESP32 BLE
+#ifdef ARDUINO_ARCH_ESP32
+#include "esp32-hal-log.h"
+#endif
+
+/**
+ * @brief Return the descriptor by UUID.
+ * @param [in] UUID The UUID to look up the descriptor.
+ * @return The descriptor.  If not present, then nullptr is returned.
+ */
+BLEDescriptor* BLEDescriptorMap::getByUUID(const char* uuid) {
+    return getByUUID(BLEUUID(uuid));
+}
+
+
+/**
+ * @brief Return the descriptor by UUID.
+ * @param [in] UUID The UUID to look up the descriptor.
+ * @return The descriptor.  If not present, then nullptr is returned.
+ */
+BLEDescriptor* BLEDescriptorMap::getByUUID(BLEUUID uuid) {
+	for (auto &myPair : m_uuidMap) {
+		if (myPair.second->getUUID().equals(uuid)) {
+			return myPair.second;
+		}
+	}
+	//return m_uuidMap.at(uuid.toString());
+	return nullptr;
+} // getByUUID
+
+
+/**
+ * @brief Return the descriptor by handle.
+ * @param [in] handle The handle to look up the descriptor.
+ * @return The descriptor.
+ */
+BLEDescriptor* BLEDescriptorMap::getByHandle(uint16_t handle) {
+	return m_handleMap.at(handle);
+} // getByHandle
+
+
+/**
+ * @brief Set the descriptor by UUID.
+ * @param [in] uuid The uuid of the descriptor.
+ * @param [in] characteristic The descriptor to cache.
+ * @return N/A.
+ */
+void BLEDescriptorMap::setByUUID(const char* uuid, BLEDescriptor *pDescriptor){
+	m_uuidMap.insert(std::pair<std::string, BLEDescriptor *>(uuid, pDescriptor));
+} // setByUUID
+
+
+
+/**
+ * @brief Set the descriptor by UUID.
+ * @param [in] uuid The uuid of the descriptor.
+ * @param [in] characteristic The descriptor to cache.
+ * @return N/A.
+ */
+void BLEDescriptorMap::setByUUID(BLEUUID uuid, BLEDescriptor *pDescriptor) {
+	m_uuidMap.insert(std::pair<std::string, BLEDescriptor *>(uuid.toString(), pDescriptor));
+} // setByUUID
+
+
+/**
+ * @brief Set the descriptor by handle.
+ * @param [in] handle The handle of the descriptor.
+ * @param [in] descriptor The descriptor to cache.
+ * @return N/A.
+ */
+void BLEDescriptorMap::setByHandle(uint16_t handle,
+		BLEDescriptor *pDescriptor) {
+	m_handleMap.insert(std::pair<uint16_t, BLEDescriptor *>(handle, pDescriptor));
+} // setByHandle
+
+
+/**
+ * @brief Return a string representation of the descriptor map.
+ * @return A string representation of the descriptor map.
+ */
+std::string BLEDescriptorMap::toString() {
+	std::stringstream stringStream;
+	stringStream << std::hex << std::setfill('0');
+	int count=0;
+	for (auto &myPair: m_uuidMap) {
+		if (count > 0) {
+			stringStream << "\n";
+		}
+		count++;
+		stringStream << "handle: 0x" << std::setw(2) << myPair.second->getHandle() << ", uuid: " + myPair.second->getUUID().toString();
+	}
+	return stringStream.str();
+} // toString
+
+
+/**
+ * @breif Pass the GATT server event onwards to each of the descriptors found in the mapping
+ * @param [in] event
+ * @param [in] gatts_if
+ * @param [in] param
+ */
+void BLEDescriptorMap::handleGATTServerEvent(
+		esp_gatts_cb_event_t      event,
+		esp_gatt_if_t             gatts_if,
+		esp_ble_gatts_cb_param_t *param) {
+	// Invoke the handler for every descriptor we have.
+	for (auto &myPair : m_uuidMap) {
+		myPair.second->handleGATTServerEvent(event, gatts_if, param);
+	}
+} // handleGATTServerEvent
+
+
+/**
+ * @brief Get the first descriptor in the map.
+ * @return The first descriptor in the map.
+ */
+BLEDescriptor* BLEDescriptorMap::getFirst() {
+	m_iterator = m_uuidMap.begin();
+	if (m_iterator == m_uuidMap.end()) {
+		return nullptr;
+	}
+	BLEDescriptor *pRet = m_iterator->second;
+	m_iterator++;
+	return pRet;
+} // getFirst
+
+
+/**
+ * @brief Get the next descriptor in the map.
+ * @return The next descriptor in the map.
+ */
+BLEDescriptor* BLEDescriptorMap::getNext() {
+	if (m_iterator == m_uuidMap.end()) {
+		return nullptr;
+	}
+	BLEDescriptor *pRet = m_iterator->second;
+	m_iterator++;
+	return pRet;
+} // getNext
+#endif /* CONFIG_BT_ENABLED */

lib/ESP32_BLE_Arduino/src/BLEDevice.cpp

@@ -0,0 +1,279 @@
+/*
+ * BLE.cpp
+ *
+ *  Created on: Mar 16, 2017
+ *      Author: kolban
+ */
+#include "sdkconfig.h"
+#if defined(CONFIG_BT_ENABLED)
+#include <freertos/FreeRTOS.h>
+#include <freertos/event_groups.h>
+#include <freertos/task.h>
+#include <esp_err.h>
+#include <nvs_flash.h>
+#include <bt.h>                // ESP32 BLE
+#include <esp_bt_main.h>       // ESP32 BLE
+#include <esp_gap_ble_api.h>   // ESP32 BLE
+#include <esp_gatts_api.h>     // ESP32 BLE
+#include <esp_gattc_api.h>     // ESP32 BLE
+#include <esp_err.h>           // ESP32 ESP-IDF
+#include <esp_log.h>           // ESP32 ESP-IDF
+#include <map>                 // Part of C++ Standard library
+#include <sstream>             // Part of C++ Standard library
+#include <iomanip>             // Part of C++ Standard library
+
+#include "BLEDevice.h"
+#include "BLEClient.h"
+#include "BLEUtils.h"
+#include "GeneralUtils.h"
+#ifdef ARDUINO_ARCH_ESP32
+#include "esp32-hal-log.h"
+#endif
+
+static const char* LOG_TAG = "BLEDevice";
+
+
+/**
+ * Singletons for the BLEDevice.
+ */
+BLEServer* BLEDevice::m_pServer = nullptr;
+BLEScan*   BLEDevice::m_pScan   = nullptr;
+BLEClient* BLEDevice::m_pClient = nullptr;
+bool initialized = false;
+/**
+ * @brief Create a new instance of a client.
+ * @return A new instance of the client.
+ */
+BLEClient* BLEDevice::createClient() {
+	m_pClient = new BLEClient();
+	return m_pClient;
+} // createClient
+
+
+/**
+ * @brief Create a new instance of a server.
+ * @return A new instance of the server.
+ */
+BLEServer* BLEDevice::createServer() {
+	ESP_LOGD(LOG_TAG, ">> createServer");
+	m_pServer = new BLEServer();
+	m_pServer->createApp(0);
+	ESP_LOGD(LOG_TAG, "<< createServer");
+	return m_pServer;
+} // createServer
+
+
+/**
+ * @brief Handle GATT server events.
+ *
+ * @param [in] event The event that has been newly received.
+ * @param [in] gatts_if The connection to the GATT interface.
+ * @param [in] param Parameters for the event.
+ */
+void BLEDevice::gattServerEventHandler(
+   esp_gatts_cb_event_t      event,
+   esp_gatt_if_t             gatts_if,
+   esp_ble_gatts_cb_param_t* param
+) {
+	ESP_LOGD(LOG_TAG, "gattServerEventHandler [esp_gatt_if: %d] ... %s",
+		gatts_if,
+		BLEUtils::gattServerEventTypeToString(event).c_str());
+
+	BLEUtils::dumpGattServerEvent(event, gatts_if, param);
+
+	if (BLEDevice::m_pServer != nullptr) {
+		BLEDevice::m_pServer->handleGATTServerEvent(event, gatts_if, param);
+	}
+} // gattServerEventHandler
+
+
+/**
+ * @brief Handle GATT client events.
+ *
+ * Handler for the GATT client events.
+ *
+ * @param [in] event
+ * @param [in] gattc_if
+ * @param [in] param
+ */
+void BLEDevice::gattClientEventHandler(
+	esp_gattc_cb_event_t      event,
+	esp_gatt_if_t             gattc_if,
+	esp_ble_gattc_cb_param_t* param) {
+
+	ESP_LOGD(LOG_TAG, "gattClientEventHandler [esp_gatt_if: %d] ... %s",
+		gattc_if, BLEUtils::gattClientEventTypeToString(event).c_str());
+	BLEUtils::dumpGattClientEvent(event, gattc_if, param);
+/*
+	switch(event) {
+		default: {
+			break;
+		}
+	} // switch
+	*/
+
+	// If we have a client registered, call it.
+	if (BLEDevice::m_pClient != nullptr) {
+		BLEDevice::m_pClient->gattClientEventHandler(event, gattc_if, param);
+	}
+
+} // gattClientEventHandler
+
+
+/**
+ * @brief Handle GAP events.
+ */
+void BLEDevice::gapEventHandler(
+	esp_gap_ble_cb_event_t event,
+	esp_ble_gap_cb_param_t *param) {
+
+	BLEUtils::dumpGapEvent(event, param);
+
+	switch(event) {
+		case ESP_GAP_BLE_SEC_REQ_EVT: {
+			esp_err_t errRc = ::esp_ble_gap_security_rsp(param->ble_security.ble_req.bd_addr, true);
+			if (errRc != ESP_OK) {
+				ESP_LOGE(LOG_TAG, "esp_ble_gap_security_rsp: rc=%d %s", errRc, GeneralUtils::errorToString(errRc));
+			}
+			break;
+		}
+
+		default: {
+			break;
+		}
+	} // switch
+
+	if (BLEDevice::m_pServer != nullptr) {
+		BLEDevice::m_pServer->handleGAPEvent(event, param);
+	}
+
+	if (BLEDevice::m_pClient != nullptr) {
+		BLEDevice::m_pClient->handleGAPEvent(event, param);
+	}
+
+	if (BLEDevice::m_pScan != nullptr) {
+		BLEDevice::getScan()->handleGAPEvent(event, param);
+	}
+} // gapEventHandler
+
+
+/**
+ * @brief Retrieve the Scan object that we use for scanning.
+ * @return The scanning object reference.  This is a singleton object.  The caller should not
+ * try and release/delete it.
+ */
+BLEScan* BLEDevice::getScan() {
+	//ESP_LOGD(LOG_TAG, ">> getScan");
+	if (m_pScan == nullptr) {
+		m_pScan = new BLEScan();
+		//ESP_LOGD(LOG_TAG, " - creating a new scan object");
+	}
+	//ESP_LOGD(LOG_TAG, "<< getScan: Returning object at 0x%x", (uint32_t)m_pScan);
+	return m_pScan;
+} // getScan
+
+
+/**
+ * @brief Initialize the %BLE environment.
+ * @param deviceName The device name of the device.
+ */
+void BLEDevice::init(std::string deviceName) {
+	if(!initialized){
+		initialized = true;
+		esp_err_t errRc = ::nvs_flash_init();
+		if (errRc != ESP_OK) {
+			ESP_LOGE(LOG_TAG, "nvs_flash_init: rc=%d %s", errRc, GeneralUtils::errorToString(errRc));
+			return;
+		}
+
+	  esp_bt_controller_config_t bt_cfg = BT_CONTROLLER_INIT_CONFIG_DEFAULT();
+	  errRc = esp_bt_controller_init(&bt_cfg);
+		if (errRc != ESP_OK) {
+			ESP_LOGE(LOG_TAG, "esp_bt_controller_init: rc=%d %s", errRc, GeneralUtils::errorToString(errRc));
+			return;
+		}
+#ifndef CLASSIC_BT_ENABLED
+	//	esp_bt_controller_mem_release(ESP_BT_MODE_CLASSIC_BT);  //FIXME waiting for response from esp-idf issue
+		errRc = esp_bt_controller_enable(ESP_BT_MODE_BLE);
+		//errRc = esp_bt_controller_enable(ESP_BT_MODE_BTDM);
+		if (errRc != ESP_OK) {
+			ESP_LOGE(LOG_TAG, "esp_bt_controller_enable: rc=%d %s", errRc, GeneralUtils::errorToString(errRc));
+			return;
+		}
+#else
+		errRc = esp_bt_controller_enable(ESP_BT_MODE_BTDM);
+		if (errRc != ESP_OK) {
+			ESP_LOGE(LOG_TAG, "esp_bt_controller_enable: rc=%d %s", errRc, GeneralUtils::errorToString(errRc));
+			return;
+		}
+#endif
+		errRc = esp_bluedroid_init();
+		if (errRc != ESP_OK) {
+			ESP_LOGE(LOG_TAG, "esp_bluedroid_init: rc=%d %s", errRc, GeneralUtils::errorToString(errRc));
+			return;
+		}
+
+		errRc = esp_bluedroid_enable();
+		if (errRc != ESP_OK) {
+			ESP_LOGE(LOG_TAG, "esp_bluedroid_enable: rc=%d %s", errRc, GeneralUtils::errorToString(errRc));
+			return;
+		}
+
+		errRc = esp_ble_gap_register_callback(BLEDevice::gapEventHandler);
+		if (errRc != ESP_OK) {
+			ESP_LOGE(LOG_TAG, "esp_ble_gap_register_callback: rc=%d %s", errRc, GeneralUtils::errorToString(errRc));
+			return;
+		}
+
+		errRc = esp_ble_gattc_register_callback(BLEDevice::gattClientEventHandler);
+		if (errRc != ESP_OK) {
+			ESP_LOGE(LOG_TAG, "esp_ble_gattc_register_callback: rc=%d %s", errRc, GeneralUtils::errorToString(errRc));
+			return;
+		}
+
+		errRc = esp_ble_gatts_register_callback(BLEDevice::gattServerEventHandler);
+		if (errRc != ESP_OK) {
+			ESP_LOGE(LOG_TAG, "esp_ble_gatts_register_callback: rc=%d %s", errRc, GeneralUtils::errorToString(errRc));
+			return;
+		}
+
+		errRc = ::esp_ble_gap_set_device_name(deviceName.c_str());
+		if (errRc != ESP_OK) {
+			ESP_LOGE(LOG_TAG, "esp_ble_gap_set_device_name: rc=%d %s", errRc, GeneralUtils::errorToString(errRc));
+			return;
+		};
+
+		esp_ble_io_cap_t iocap = ESP_IO_CAP_NONE;
+		errRc = ::esp_ble_gap_set_security_param(ESP_BLE_SM_IOCAP_MODE, &iocap, sizeof(uint8_t));
+		if (errRc != ESP_OK) {
+			ESP_LOGE(LOG_TAG, "esp_ble_gap_set_security_param: rc=%d %s", errRc, GeneralUtils::errorToString(errRc));
+			return;
+		};
+	}
+	vTaskDelay(200/portTICK_PERIOD_MS); // Delay for 200 msecs as a workaround to an apparent Arduino environment issue.
+} // init
+
+
+/**
+ * @brief Set the transmission power.
+ * The power level can be one of:
+ * * ESP_PWR_LVL_N14
+ * * ESP_PWR_LVL_N11
+ * * ESP_PWR_LVL_N8
+ * * ESP_PWR_LVL_N5
+ * * ESP_PWR_LVL_N2
+ * * ESP_PWR_LVL_P1
+ * * ESP_PWR_LVL_P4
+ * * ESP_PWR_LVL_P7
+ * @param [in] powerLevel.
+ */
+/* STATIC */ void BLEDevice::setPower(esp_power_level_t powerLevel) {
+	ESP_LOGD(LOG_TAG, ">> setPower: %d", powerLevel);
+	esp_err_t errRc = ::esp_ble_tx_power_set(ESP_BLE_PWR_TYPE_DEFAULT, powerLevel);
+	if (errRc != ESP_OK) {
+		ESP_LOGE(LOG_TAG, "esp_ble_tx_power_set: rc=%d %s", errRc, GeneralUtils::errorToString(errRc));
+	};
+	ESP_LOGD(LOG_TAG, "<< setPower");
+} // setPower
+
+#endif // CONFIG_BT_ENABLED

lib/ESP32_BLE_Arduino/src/BLEDevice.h

@@ -0,0 +1,62 @@
+/*
+ * BLEDevice.h
+ *
+ *  Created on: Mar 16, 2017
+ *      Author: kolban
+ */
+
+#ifndef MAIN_BLEDevice_H_
+#define MAIN_BLEDevice_H_
+#include "sdkconfig.h"
+#if defined(CONFIG_BT_ENABLED)
+#include <esp_gap_ble_api.h> // ESP32 BLE
+#include <esp_gattc_api.h>   // ESP32 BLE
+#include <map>               // Part of C++ STL
+#include <string>
+#include <bt.h>
+
+#include "BLEServer.h"
+#include "BLEClient.h"
+#include "BLEUtils.h"
+#include "BLEScan.h"
+#include "BLEAddress.h"
+/**
+ * @brief %BLE functions.
+ */
+class BLEDevice {
+public:
+
+	static BLEClient* createClient();
+	static BLEServer* createServer();
+	static void       dumpDevices();
+	static BLEScan*   getScan();
+	static void       init(std::string deviceName);
+
+private:
+	static BLEServer *m_pServer;
+	static BLEScan   *m_pScan;
+	static BLEClient *m_pClient;
+
+	static esp_gatt_if_t getGattcIF();
+
+	static void gattClientEventHandler(
+		esp_gattc_cb_event_t      event,
+		esp_gatt_if_t             gattc_if,
+		esp_ble_gattc_cb_param_t* param);
+
+	static void gattServerEventHandler(
+	   esp_gatts_cb_event_t      event,
+	   esp_gatt_if_t             gatts_if,
+	   esp_ble_gatts_cb_param_t* param);
+
+	static void gapEventHandler(
+		esp_gap_ble_cb_event_t  event,
+		esp_ble_gap_cb_param_t* param);
+
+public:
+	static void setPower(esp_power_level_t powerLevel);
+
+}; // class BLE
+
+#endif // CONFIG_BT_ENABLED
+#endif /* MAIN_BLEDevice_H_ */

lib/ESP32_BLE_Arduino/src/BLERemoteCharacteristic.cpp

@@ -0,0 +1,593 @@
+/*
+ * BLERemoteCharacteristic.cpp
+ *
+ *  Created on: Jul 8, 2017
+ *      Author: kolban
+ */
+
+#include "BLERemoteCharacteristic.h"
+
+#include "sdkconfig.h"
+#if defined(CONFIG_BT_ENABLED)
+
+#include <esp_gattc_api.h>
+#include <esp_log.h>
+#include <esp_err.h>
+
+#include <sstream>
+#include "BLEUtils.h"
+#include "GeneralUtils.h"
+#include "BLERemoteDescriptor.h"
+#ifdef ARDUINO_ARCH_ESP32
+#include "esp32-hal-log.h"
+#endif
+
+
+static const char* LOG_TAG = "BLERemoteCharacteristic";   // The logging tag for this class.
+
+/**
+ * @brief Constructor.
+ * @param [in] handle The BLE server side handle of this characteristic.
+ * @param [in] uuid The UUID of this characteristic.
+ * @param [in] charProp The properties of this characteristic.
+ * @param [in] pRemoteService A reference to the remote service to which this remote characteristic pertains.
+ */
+BLERemoteCharacteristic::BLERemoteCharacteristic(
+		uint16_t             handle,
+		BLEUUID              uuid,
+		esp_gatt_char_prop_t charProp,
+		BLERemoteService*    pRemoteService) {
+	ESP_LOGD(LOG_TAG, ">> BLERemoteCharacteristic: handle: %d 0x%d, uuid: %s", handle, handle, uuid.toString().c_str());
+	m_handle         = handle;
+	m_uuid           = uuid;
+	m_charProp       = charProp;
+	m_pRemoteService = pRemoteService;
+	m_notifyCallback = nullptr;
+
+	retrieveDescriptors(); // Get the descriptors for this characteristic
+	ESP_LOGD(LOG_TAG, "<< BLERemoteCharacteristic");
+} // BLERemoteCharacteristic
+
+
+/**
+ *@brief Destructor.
+ */
+BLERemoteCharacteristic::~BLERemoteCharacteristic() {
+	removeDescriptors();   // Release resources for any descriptor information we may have allocated.
+} // ~BLERemoteCharacteristic
+
+
+/**
+ * @brief Does the characteristic support broadcasting?
+ * @return True if the characteristic supports broadcasting.
+ */
+bool BLERemoteCharacteristic::canBroadcast() {
+	return (m_charProp & ESP_GATT_CHAR_PROP_BIT_BROADCAST) != 0;
+} // canBroadcast
+
+
+/**
+ * @brief Does the characteristic support indications?
+ * @return True if the characteristic supports indications.
+ */
+bool BLERemoteCharacteristic::canIndicate() {
+	return (m_charProp & ESP_GATT_CHAR_PROP_BIT_INDICATE) != 0;
+} // canIndicate
+
+
+/**
+ * @brief Does the characteristic support notifications?
+ * @return True if the characteristic supports notifications.
+ */
+bool BLERemoteCharacteristic::canNotify() {
+	return (m_charProp & ESP_GATT_CHAR_PROP_BIT_NOTIFY) != 0;
+} // canNotify
+
+
+/**
+ * @brief Does the characteristic support reading?
+ * @return True if the characteristic supports reading.
+ */
+bool BLERemoteCharacteristic::canRead() {
+	return (m_charProp & ESP_GATT_CHAR_PROP_BIT_READ) != 0;
+} // canRead
+
+
+/**
+ * @brief Does the characteristic support writing?
+ * @return True if the characteristic supports writing.
+ */
+bool BLERemoteCharacteristic::canWrite() {
+	return (m_charProp & ESP_GATT_CHAR_PROP_BIT_WRITE) != 0;
+} // canWrite
+
+
+/**
+ * @brief Does the characteristic support writing with no response?
+ * @return True if the characteristic supports writing with no response.
+ */
+bool BLERemoteCharacteristic::canWriteNoResponse() {
+	return (m_charProp & ESP_GATT_CHAR_PROP_BIT_WRITE_NR) != 0;
+} // canWriteNoResponse
+
+
+/*
+static bool compareSrvcId(esp_gatt_srvc_id_t id1, esp_gatt_srvc_id_t id2) {
+	if (id1.id.inst_id != id2.id.inst_id) {
+		return false;
+	}
+	if (!BLEUUID(id1.id.uuid).equals(BLEUUID(id2.id.uuid))) {
+		return false;
+	}
+	return true;
+} // compareSrvcId
+*/
+
+/*
+static bool compareGattId(esp_gatt_id_t id1, esp_gatt_id_t id2) {
+	if (id1.inst_id != id2.inst_id) {
+		return false;
+	}
+	if (!BLEUUID(id1.uuid).equals(BLEUUID(id2.uuid))) {
+		return false;
+	}
+	return true;
+} // compareCharId
+*/
+
+
+/**
+ * @brief Handle GATT Client events.
+ * When an event arrives for a GATT client we give this characteristic the opportunity to
+ * take a look at it to see if there is interest in it.
+ * @param [in] event The type of event.
+ * @param [in] gattc_if The interface on which the event was received.
+ * @param [in] evtParam Payload data for the event.
+ * @returns N/A
+ */
+void BLERemoteCharacteristic::gattClientEventHandler(
+	esp_gattc_cb_event_t      event,
+	esp_gatt_if_t             gattc_if,
+	esp_ble_gattc_cb_param_t* evtParam) {
+	switch(event) {
+		//
+		// ESP_GATTC_NOTIFY_EVT
+		//
+		// notify
+		// - uint16_t           conn_id    - The connection identifier of the server.
+		// - esp_bd_addr_t      remote_bda - The device address of the BLE server.
+		// - uint16_t           handle     - The handle of the characteristic for which the event is being received.
+		// - uint16_t           value_len  - The length of the received data.
+		// - uint8_t*           value      - The received data.
+		// - bool               is_notify  - True if this is a notify, false if it is an indicate.
+		//
+		// We have received a notification event which means that the server wishes us to know about a notification
+		// piece of data.  What we must now do is find the characteristic with the associated handle and then
+		// invoke its notification callback (if it has one).
+		//
+		case ESP_GATTC_NOTIFY_EVT: {
+			if (evtParam->notify.handle != getHandle()) {
+				break;
+			}
+			if (m_notifyCallback != nullptr) {
+				ESP_LOGD(LOG_TAG, "Invoking callback for notification on characteristic %s", toString().c_str());
+				m_notifyCallback(
+					this,
+					evtParam->notify.value,
+					evtParam->notify.value_len,
+					evtParam->notify.is_notify
+				);
+			} // End we have a callback function ...
+			break;
+		} // ESP_GATTC_NOTIFY_EVT
+
+
+		//
+		// ESP_GATTC_READ_CHAR_EVT
+		// This event indicates that the server has responded to the read request.
+		//
+		// read:
+		// - esp_gatt_status_t  status
+		// - uint16_t           conn_id
+		// - uint16_t           handle
+		// - uint8_t*           value
+		// - uint16_t           value_len
+	  //
+		case ESP_GATTC_READ_CHAR_EVT: {
+			// If this event is not for us, then nothing further to do.
+			if (evtParam->read.handle != getHandle()) {
+				break;
+			}
+
+			// At this point, we have determined that the event is for us, so now we save the value
+			// and unlock the semaphore to ensure that the requestor of the data can continue.
+			if (evtParam->read.status == ESP_GATT_OK) {
+				m_value = std::string((char*)evtParam->read.value, evtParam->read.value_len);
+			} else {
+				m_value = "";
+			}
+
+			m_semaphoreReadCharEvt.give();
+			break;
+		} // ESP_GATTC_READ_CHAR_EVT
+
+
+		//
+		// ESP_GATTC_REG_FOR_NOTIFY_EVT
+		//
+		// reg_for_notify:
+		// - esp_gatt_status_t status
+		// - uint16_t          handle
+		//
+		case ESP_GATTC_REG_FOR_NOTIFY_EVT: {
+			// If the request is not for this BLERemoteCharacteristic then move on to the next.
+			if (evtParam->reg_for_notify.handle != getHandle()) {
+				break;
+			}
+
+			// We have processed the notify registration and can unlock the semaphore.
+			m_semaphoreRegForNotifyEvt.give();
+			break;
+		} // ESP_GATTC_REG_FOR_NOTIFY_EVT
+
+
+		//
+		// ESP_GATTC_UNREG_FOR_NOTIFY_EVT
+		//
+		// unreg_for_notify:
+		// - esp_gatt_status_t status
+		// - uint16_t          handle
+		//
+		case ESP_GATTC_UNREG_FOR_NOTIFY_EVT: {
+			if (evtParam->unreg_for_notify.handle != getHandle()) {
+				break;
+			}
+			// We have processed the notify un-registration and can unlock the semaphore.
+			m_semaphoreRegForNotifyEvt.give();
+			break;
+		} // ESP_GATTC_UNREG_FOR_NOTIFY_EVT:
+
+
+		//
+		// ESP_GATTC_WRITE_CHAR_EVT
+		//
+		// write:
+		// - esp_gatt_status_t status
+		// - uint16_t          conn_id
+		// - uint16_t          handle
+		//
+		case ESP_GATTC_WRITE_CHAR_EVT: {
+			// Determine if this event is for us and, if not, pass onwards.
+			if (evtParam->write.handle != getHandle()) {
+				break;
+			}
+
+			// There is nothing further we need to do here.  This is merely an indication
+			// that the write has completed and we can unlock the caller.
+			m_semaphoreWriteCharEvt.give();
+			break;
+		} // ESP_GATTC_WRITE_CHAR_EVT
+
+
+		default: {
+			break;
+		}
+	} // End switch
+}; // gattClientEventHandler
+
+
+/**
+ * @brief Populate the descriptors (if any) for this characteristic.
+ */
+void BLERemoteCharacteristic::retrieveDescriptors() {
+	ESP_LOGD(LOG_TAG, ">> retrieveDescriptors() for characteristic: %s", getUUID().toString().c_str());
+
+	removeDescriptors();   // Remove any existing descriptors.
+
+	// Loop over each of the descriptors within the service associated with this characteristic.
+	// For each descriptor we find, create a BLERemoteDescriptor instance.
+	uint16_t offset = 0;
+	esp_gattc_descr_elem_t result;
+	while(1) {
+		uint16_t count = 1;
+		esp_gatt_status_t status = ::esp_ble_gattc_get_all_descr(
+			getRemoteService()->getClient()->getGattcIf(),
+			getRemoteService()->getClient()->getConnId(),
+			getHandle(),
+			&result,
+			&count,
+			offset
+		);
+
+		if (status == ESP_GATT_INVALID_OFFSET) {   // We have reached the end of the entries.
+			break;
+		}
+
+		if (status != ESP_GATT_OK) {
+			ESP_LOGE(LOG_TAG, "esp_ble_gattc_get_all_descr: %s", BLEUtils::gattStatusToString(status).c_str());
+			break;
+		}
+
+		if (count == 0) {
+			break;
+		}
+		ESP_LOGE(LOG_TAG, "");
+		ESP_LOGD(LOG_TAG, "Found a descriptor: Handle: %d, UUID: %s", result.handle, BLEUUID(result.uuid).toString().c_str());
+
+		// We now have a new characteristic ... let us add that to our set of known characteristics
+		BLERemoteDescriptor *pNewRemoteDescriptor = new BLERemoteDescriptor(
+			result.handle,
+			BLEUUID(result.uuid),
+			this
+		);
+
+		m_descriptorMap.insert(std::pair<std::string, BLERemoteDescriptor*>(pNewRemoteDescriptor->getUUID().toString(), pNewRemoteDescriptor));
+
+		offset++;
+	} // while true
+	//m_haveCharacteristics = true; // Remember that we have received the characteristics.
+	ESP_LOGD(LOG_TAG, "<< retrieveDescriptors(): Found %d descriptors.", offset);
+} // getDescriptors
+
+
+/**
+ * @brief Retrieve the map of descriptors keyed by UUID.
+ */
+std::map<std::string, BLERemoteDescriptor *>* BLERemoteCharacteristic::getDescriptors() {
+	return &m_descriptorMap;
+} // getDescriptors
+
+
+/**
+ * @brief Get the handle for this characteristic.
+ * @return The handle for this characteristic.
+ */
+uint16_t BLERemoteCharacteristic::getHandle() {
+	//ESP_LOGD(LOG_TAG, ">> getHandle: Characteristic: %s", getUUID().toString().c_str());
+	//ESP_LOGD(LOG_TAG, "<< getHandle: %d 0x%.2x", m_handle, m_handle);
+	return m_handle;
+} // getHandle
+
+
+/**
+ * @brief Get the descriptor instance with the given UUID that belongs to this characteristic.
+ * @param [in] uuid The UUID of the descriptor to find.
+ * @return The Remote descriptor (if present) or null if not present.
+ */
+BLERemoteDescriptor* BLERemoteCharacteristic::getDescriptor(BLEUUID uuid) {
+	ESP_LOGD(LOG_TAG, ">> getDescriptor: uuid: %s", uuid.toString().c_str());
+	std::string v = uuid.toString();
+	for (auto &myPair : m_descriptorMap) {
+		if (myPair.first == v) {
+			ESP_LOGD(LOG_TAG, "<< getDescriptor: found");
+			return myPair.second;
+		}
+	}
+	ESP_LOGD(LOG_TAG, "<< getDescriptor: Not found");
+	return nullptr;
+} // getDescriptor
+
+
+/**
+ * @brief Get the remote service associated with this characteristic.
+ * @return The remote service associated with this characteristic.
+ */
+BLERemoteService* BLERemoteCharacteristic::getRemoteService() {
+	return m_pRemoteService;
+} // getRemoteService
+
+
+/**
+ * @brief Get the UUID for this characteristic.
+ * @return The UUID for this characteristic.
+ */
+BLEUUID BLERemoteCharacteristic::getUUID() {
+	return m_uuid;
+} // getUUID
+
+
+/**
+ * @brief Read an unsigned 16 bit value
+ * @return The unsigned 16 bit value.
+ */
+uint16_t BLERemoteCharacteristic::readUInt16(void) {
+	std::string value = readValue();
+	if (value.length() >= 2) {
+		return *(uint16_t*)(value.data());
+	}
+	return 0;
+} // readUInt16
+
+
+/**
+ * @brief Read an unsigned 32 bit value.
+ * @return the unsigned 32 bit value.
+ */
+uint32_t BLERemoteCharacteristic::readUInt32(void) {
+	std::string value = readValue();
+	if (value.length() >= 4) {
+		return *(uint32_t*)(value.data());
+	}
+	return 0;
+} // readUInt32
+
+
+/**
+ * @brief Read a byte value
+ * @return The value as a byte
+ */
+uint8_t BLERemoteCharacteristic::readUInt8(void) {
+	std::string value = readValue();
+	if (value.length() >= 1) {
+		return (uint8_t)value[0];
+	}
+	return 0;
+} // readUInt8
+
+
+/**
+ * @brief Read the value of the remote characteristic.
+ * @return The value of the remote characteristic.
+ */
+std::string BLERemoteCharacteristic::readValue() {
+	ESP_LOGD(LOG_TAG, ">> readValue(): uuid: %s, handle: %d 0x%.2x", getUUID().toString().c_str(), getHandle(), getHandle());
+
+	m_semaphoreReadCharEvt.take("readValue");
+
+	// Ask the BLE subsystem to retrieve the value for the remote hosted characteristic.
+	// This is an asynchronous request which means that we must block waiting for the response
+	// to become available.
+	esp_err_t errRc = ::esp_ble_gattc_read_char(
+		m_pRemoteService->getClient()->getGattcIf(),
+		m_pRemoteService->getClient()->getConnId(),    // The connection ID to the BLE server
+		getHandle(),                                   // The handle of this characteristic
+		ESP_GATT_AUTH_REQ_NONE);                       // Security
+
+	if (errRc != ESP_OK) {
+		ESP_LOGE(LOG_TAG, "esp_ble_gattc_read_char: rc=%d %s", errRc, GeneralUtils::errorToString(errRc));
+		return "";
+	}
+
+	// Block waiting for the event that indicates that the read has completed.  When it has, the std::string found
+	// in m_value will contain our data.
+	m_semaphoreReadCharEvt.wait("readValue");
+
+	ESP_LOGD(LOG_TAG, "<< readValue(): length: %d", m_value.length());
+	return m_value;
+} // readValue
+
+
+/**
+ * @brief Register for notifications.
+ * @param [in] notifyCallback A callback to be invoked for a notification.  If NULL is provided then we are
+ * unregistering a notification.
+ * @return N/A.
+ */
+void BLERemoteCharacteristic::registerForNotify(
+		void (*notifyCallback)(
+			BLERemoteCharacteristic* pBLERemoteCharacteristic,
+			uint8_t*                 pData,
+			size_t                   length,
+			bool                     isNotify)) {
+	ESP_LOGD(LOG_TAG, ">> registerForNotify(): %s", toString().c_str());
+
+	m_notifyCallback = notifyCallback;   // Save the notification callback.
+
+	m_semaphoreRegForNotifyEvt.take("registerForNotify");
+
+	if (notifyCallback != nullptr) {   // If we have a callback function, then this is a registration.
+		esp_err_t errRc = ::esp_ble_gattc_register_for_notify(
+			m_pRemoteService->getClient()->getGattcIf(),
+			*m_pRemoteService->getClient()->getPeerAddress().getNative(),
+			getHandle()
+		);
+
+		if (errRc != ESP_OK) {
+			ESP_LOGE(LOG_TAG, "esp_ble_gattc_register_for_notify: rc=%d %s", errRc, GeneralUtils::errorToString(errRc));
+		}
+	} // End Register
+	else {   // If we weren't passed a callback function, then this is an unregistration.
+		esp_err_t errRc = ::esp_ble_gattc_unregister_for_notify(
+			m_pRemoteService->getClient()->getGattcIf(),
+			*m_pRemoteService->getClient()->getPeerAddress().getNative(),
+			getHandle()
+		);
+
+		if (errRc != ESP_OK) {
+			ESP_LOGE(LOG_TAG, "esp_ble_gattc_unregister_for_notify: rc=%d %s", errRc, GeneralUtils::errorToString(errRc));
+		}
+	} // End Unregister
+
+	m_semaphoreRegForNotifyEvt.wait("registerForNotify");
+
+	ESP_LOGD(LOG_TAG, "<< registerForNotify()");
+} // registerForNotify
+
+
+/**
+ * @brief Delete the descriptors in the descriptor map.
+ * We maintain a map called m_descriptorMap that contains pointers to BLERemoteDescriptors
+ * object references.  Since we allocated these in this class, we are also responsible for deleteing
+ * them.  This method does just that.
+ * @return N/A.
+ */
+void BLERemoteCharacteristic::removeDescriptors() {
+	// Iterate through all the descriptors releasing their storage and erasing them from the map.
+	for (auto &myPair : m_descriptorMap) {
+	   m_descriptorMap.erase(myPair.first);
+	   delete myPair.second;
+	}
+	m_descriptorMap.clear();   // Technically not neeeded, but just to be sure.
+} // removeCharacteristics
+
+
+/**
+ * @brief Convert a BLERemoteCharacteristic to a string representation;
+ * @return a String representation.
+ */
+std::string BLERemoteCharacteristic::toString() {
+	std::ostringstream ss;
+	ss << "Characteristic: uuid: " << m_uuid.toString() <<
+		", handle: " << getHandle() << " 0x" << std::hex << getHandle() <<
+		", props: " << BLEUtils::characteristicPropertiesToString(m_charProp);
+	return ss.str();
+} // toString
+
+
+/**
+ * @brief Write the new value for the characteristic.
+ * @param [in] newValue The new value to write.
+ * @param [in] response Do we expect a response?
+ * @return N/A.
+ */
+void BLERemoteCharacteristic::writeValue(std::string newValue, bool response) {
+	ESP_LOGD(LOG_TAG, ">> writeValue(), length: %d", newValue.length());
+
+	m_semaphoreWriteCharEvt.take("writeValue");
+
+	// Invoke the ESP-IDF API to perform the write.
+	esp_err_t errRc = ::esp_ble_gattc_write_char(
+		m_pRemoteService->getClient()->getGattcIf(),
+		m_pRemoteService->getClient()->getConnId(),
+		getHandle(),
+		newValue.length(),
+		(uint8_t*)newValue.data(),
+		response?ESP_GATT_WRITE_TYPE_RSP:ESP_GATT_WRITE_TYPE_NO_RSP,
+		ESP_GATT_AUTH_REQ_NONE
+	);
+
+	if (errRc != ESP_OK) {
+		ESP_LOGE(LOG_TAG, "esp_ble_gattc_write_char: rc=%d %s", errRc, GeneralUtils::errorToString(errRc));
+		return;
+	}
+
+	m_semaphoreWriteCharEvt.wait("writeValue");
+
+	ESP_LOGD(LOG_TAG, "<< writeValue");
+} // writeValue
+
+
+/**
+ * @brief Write the new value for the characteristic.
+ *
+ * This is a convenience function.  Many BLE characteristics are a single byte of data.
+ * @param [in] newValue The new byte value to write.
+ * @param [in] response Whether we require a response from the write.
+ * @return N/A.
+ */
+void BLERemoteCharacteristic::writeValue(uint8_t newValue, bool response) {
+	writeValue(std::string(reinterpret_cast<char*>(&newValue), 1), response);
+} // writeValue
+
+
+/**
+ * @brief Write the new value for the characteristic from a data buffer.
+ * @param [in] data A pointer to a data buffer.
+ * @param [in] length The length of the data in the data buffer.
+ * @param [in] response Whether we require a response from the write.
+ */
+void BLERemoteCharacteristic::writeValue(uint8_t* data, size_t length, bool response) {
+	writeValue(std::string((char *)data, length), response);
+} // writeValue
+
+#endif /* CONFIG_BT_ENABLED */

lib/ESP32_BLE_Arduino/src/BLERemoteCharacteristic.h

@@ -0,0 +1,85 @@
+/*
+ * BLERemoteCharacteristic.h
+ *
+ *  Created on: Jul 8, 2017
+ *      Author: kolban
+ */
+
+#ifndef COMPONENTS_CPP_UTILS_BLEREMOTECHARACTERISTIC_H_
+#define COMPONENTS_CPP_UTILS_BLEREMOTECHARACTERISTIC_H_
+#include "sdkconfig.h"
+#if defined(CONFIG_BT_ENABLED)
+
+#include <string>
+
+#include <esp_gattc_api.h>
+
+#include "BLERemoteService.h"
+#include "BLERemoteDescriptor.h"
+#include "BLEUUID.h"
+#include "FreeRTOS.h"
+
+class BLERemoteService;
+class BLERemoteDescriptor;
+
+/**
+ * @brief A model of a remote %BLE characteristic.
+ */
+class BLERemoteCharacteristic {
+public:
+	~BLERemoteCharacteristic();
+
+	// Public member functions
+	bool        canBroadcast();
+	bool        canIndicate();
+	bool        canNotify();
+	bool        canRead();
+	bool        canWrite();
+	bool        canWriteNoResponse();
+	BLERemoteDescriptor* getDescriptor(BLEUUID uuid);
+	std::map<std::string, BLERemoteDescriptor *>* getDescriptors();
+	uint16_t    getHandle();
+	BLEUUID     getUUID();
+	std::string readValue(void);
+	uint8_t     readUInt8(void);
+	uint16_t    readUInt16(void);
+	uint32_t    readUInt32(void);
+	void        registerForNotify(void (*notifyCallback)(BLERemoteCharacteristic* pBLERemoteCharacteristic, uint8_t* pData, size_t length, bool isNotify));
+	void        writeValue(uint8_t* data, size_t length, bool response = false);
+	void        writeValue(std::string newValue, bool response = false);
+	void        writeValue(uint8_t newValue, bool response = false);
+	std::string toString(void);
+
+private:
+	BLERemoteCharacteristic(uint16_t handle, BLEUUID uuid, esp_gatt_char_prop_t charProp, BLERemoteService* pRemoteService);
+	friend class BLEClient;
+	friend class BLERemoteService;
+	friend class BLERemoteDescriptor;
+
+	// Private member functions
+	void gattClientEventHandler(
+		esp_gattc_cb_event_t      event,
+		esp_gatt_if_t             gattc_if,
+		esp_ble_gattc_cb_param_t* evtParam);
+
+
+	BLERemoteService* getRemoteService();
+	void              removeDescriptors();
+	void              retrieveDescriptors();
+
+	// Private properties
+	BLEUUID              m_uuid;
+	esp_gatt_char_prop_t m_charProp;
+	uint16_t             m_handle;
+	BLERemoteService*    m_pRemoteService;
+	FreeRTOS::Semaphore  m_semaphoreReadCharEvt      = FreeRTOS::Semaphore("ReadCharEvt");
+	FreeRTOS::Semaphore  m_semaphoreRegForNotifyEvt  = FreeRTOS::Semaphore("RegForNotifyEvt");
+	FreeRTOS::Semaphore  m_semaphoreWriteCharEvt     = FreeRTOS::Semaphore("WriteCharEvt");
+	std::string          m_value;
+  void (*m_notifyCallback)(BLERemoteCharacteristic* pBLERemoteCharacteristic, uint8_t* pData, size_t length, bool isNotify);
+
+	// We maintain a map of descriptors owned by this characteristic keyed by a string representation of the UUID.
+	std::map<std::string, BLERemoteDescriptor*> m_descriptorMap;
+}; // BLERemoteCharacteristic
+#endif /* CONFIG_BT_ENABLED */
+#endif /* COMPONENTS_CPP_UTILS_BLEREMOTECHARACTERISTIC_H_ */

lib/ESP32_BLE_Arduino/src/BLERemoteDescriptor.cpp

@@ -0,0 +1,162 @@
+/*
+ * BLERemoteDescriptor.cpp
+ *
+ *  Created on: Jul 8, 2017
+ *      Author: kolban
+ */
+#include "sdkconfig.h"
+#if defined(CONFIG_BT_ENABLED)
+#include <sstream>
+#include "BLERemoteDescriptor.h"
+#include "GeneralUtils.h"
+#include <esp_log.h>
+#ifdef ARDUINO_ARCH_ESP32
+#include "esp32-hal-log.h"
+#endif
+
+static const char* LOG_TAG = "BLERemoteDescriptor";
+
+
+BLERemoteDescriptor::BLERemoteDescriptor(
+	uint16_t                 handle,
+	BLEUUID                  uuid,
+	BLERemoteCharacteristic* pRemoteCharacteristic) {
+
+	m_handle                = handle;
+	m_uuid                  = uuid;
+	m_pRemoteCharacteristic = pRemoteCharacteristic;
+}
+
+/**
+ * @brief Retrieve the handle associated with this remote descriptor.
+ * @return The handle associated with this remote descriptor.
+ */
+uint16_t BLERemoteDescriptor::getHandle() {
+	return m_handle;
+} // getHandle
+
+
+/**
+ * @brief Retrieve the UUID associated this remote descriptor.
+ * @return The UUID associated this remote descriptor.
+ */
+BLEUUID BLERemoteDescriptor::getUUID() {
+	return m_uuid;
+} // getUUID
+
+
+std::string BLERemoteDescriptor::readValue(void) {
+	m_semaphoreReadDescrEvt.take("readValue");
+
+	// Ask the BLE subsystem to retrieve the value for the remote hosted characteristic.
+	esp_err_t errRc = ::esp_ble_gattc_read_char_descr(
+		m_pRemoteCharacteristic->getRemoteService()->getClient()->getGattcIf(),
+		m_pRemoteCharacteristic->getRemoteService()->getClient()->getConnId(),    // The connection ID to the BLE server
+		getHandle(),                                   // The handle of this characteristic
+		ESP_GATT_AUTH_REQ_NONE);                       // Security
+
+	if (errRc != ESP_OK) {
+		ESP_LOGE(LOG_TAG, "esp_ble_gattc_read_char: rc=%d %s", errRc, GeneralUtils::errorToString(errRc));
+		return "";
+	}
+
+	// Block waiting for the event that indicates that the read has completed.  When it has, the std::string found
+	// in m_value will contain our data.
+	m_semaphoreReadDescrEvt.wait("readValue");
+
+	ESP_LOGD(LOG_TAG, "<< readValue(): length: %d", m_value.length());
+	return m_value;
+	return "";
+} // readValue
+
+
+uint8_t BLERemoteDescriptor::readUInt8(void) {
+	std::string value = readValue();
+	if (value.length() >= 1) {
+		return (uint8_t)value[0];
+	}
+	return 0;
+} // readUInt8
+
+
+uint16_t BLERemoteDescriptor::readUInt16(void) {
+	std::string value = readValue();
+	if (value.length() >= 2) {
+		return *(uint16_t*)(value.data());
+	}
+	return 0;
+} // readUInt16
+
+
+uint32_t BLERemoteDescriptor::readUInt32(void) {
+	std::string value = readValue();
+	if (value.length() >= 4) {
+		return *(uint32_t*)(value.data());
+	}
+	return 0;
+} // readUInt32
+
+
+/**
+ * @brief Return a string representation of this BLE Remote Descriptor.
+ * @retun A string representation of this BLE Remote Descriptor.
+ */
+std::string BLERemoteDescriptor::toString(void) {
+	std::stringstream ss;
+	ss << "handle: " << getHandle() << ", uuid: " << getUUID().toString();
+	return ss.str();
+} // toString
+
+
+/**
+ * @brief Write data to the BLE Remote Descriptor.
+ * @param [in] data The data to send to the remote descriptor.
+ * @param [in] length The length of the data to send.
+ * @param [in] response True if we expect a response.
+ */
+void BLERemoteDescriptor::writeValue(
+		uint8_t* data,
+		size_t   length,
+		bool     response) {
+	ESP_LOGD(LOG_TAG, ">> writeValue: %s", toString().c_str());
+	esp_err_t errRc = ::esp_ble_gattc_write_char_descr(
+		m_pRemoteCharacteristic->getRemoteService()->getClient()->getGattcIf(),
+		m_pRemoteCharacteristic->getRemoteService()->getClient()->getConnId(),
+		getHandle(),
+		length,                           // Data length
+		data,                             // Data
+		ESP_GATT_WRITE_TYPE_NO_RSP,
+		ESP_GATT_AUTH_REQ_NONE
+	);
+	if (errRc != ESP_OK) {
+		ESP_LOGE(LOG_TAG, "esp_ble_gattc_write_char_descr: %d", errRc);
+	}
+	ESP_LOGD(LOG_TAG, "<< writeValue");
+} // writeValue
+
+
+/**
+ * @brief Write data represented as a string to the BLE Remote Descriptor.
+ * @param [in] newValue The data to send to the remote descriptor.
+ * @param [in] response True if we expect a response.
+ */
+void BLERemoteDescriptor::writeValue(
+		std::string newValue,
+		bool        response) {
+	writeValue(newValue.data(), newValue.length());
+} // writeValue
+
+
+/**
+ * @brief Write a byte value to the Descriptor.
+ * @param [in] The single byte to write.
+ * @param [in] True if we expect a response.
+ */
+void BLERemoteDescriptor::writeValue(
+		uint8_t newValue,
+		bool    response) {
+	writeValue(&newValue, 1, response);
+} // writeValue
+
+
+#endif /* CONFIG_BT_ENABLED */

lib/ESP32_BLE_Arduino/src/BLERemoteDescriptor.h

@@ -0,0 +1,55 @@
+/*
+ * BLERemoteDescriptor.h
+ *
+ *  Created on: Jul 8, 2017
+ *      Author: kolban
+ */
+
+#ifndef COMPONENTS_CPP_UTILS_BLEREMOTEDESCRIPTOR_H_
+#define COMPONENTS_CPP_UTILS_BLEREMOTEDESCRIPTOR_H_
+#include "sdkconfig.h"
+#if defined(CONFIG_BT_ENABLED)
+#include <string>
+
+#include <esp_gattc_api.h>
+
+#include "BLERemoteCharacteristic.h"
+#include "BLEUUID.h"
+#include "FreeRTOS.h"
+
+class BLERemoteCharacteristic;
+/**
+ * @brief A model of remote %BLE descriptor.
+ */
+class BLERemoteDescriptor {
+public:
+	uint16_t    getHandle();
+	BLEUUID     getUUID();
+	std::string readValue(void);
+	uint8_t     readUInt8(void);
+	uint16_t    readUInt16(void);
+	uint32_t    readUInt32(void);
+	std::string toString(void);
+	//void        registerForNotify(void (*notifyCallback)(BLERemoteCharacteristic *pBLERemoteCharacteristic, uint8_t *pData, size_t length, bool isNotify));
+	void        writeValue(uint8_t* data, size_t length, bool response = false);
+	void        writeValue(std::string newValue, bool response = false);
+	void        writeValue(uint8_t newValue, bool response = false);
+
+
+private:
+	friend class BLERemoteCharacteristic;
+	BLERemoteDescriptor(
+		uint16_t                 handle,
+		BLEUUID                  uuid,
+		BLERemoteCharacteristic* pRemoteCharacteristic
+	);
+	uint16_t                 m_handle;                  // Server handle of this descriptor.
+	BLEUUID                  m_uuid;                    // UUID of this descriptor.
+	std::string              m_value;                   // Last received value of the descriptor.
+	BLERemoteCharacteristic* m_pRemoteCharacteristic;   // Reference to the Remote characteristic of which this descriptor is associated.
+	FreeRTOS::Semaphore      m_semaphoreReadDescrEvt      = FreeRTOS::Semaphore("ReadDescrEvt");
+
+
+};
+#endif /* CONFIG_BT_ENABLED */
+#endif /* COMPONENTS_CPP_UTILS_BLEREMOTEDESCRIPTOR_H_ */