Feature/add shtc3 (#843)

* Add SHTC3

* remove adc config

main/User_config.h

@@ -233,6 +233,7 @@ uint8_t wifiProtocol = 0; // default mode, automatic selection
 //#define ZboardM5STACK  "ZboardM5STACK"
 //#define ZradioCC1101   "CC1101"   //ESP8266, ESP32
 //#define ZactuatorPWM   "PWM"      //ESP8266, ESP32
+//#define ZsensorSHTC3 "SHTC3" //ESP8266, Arduino, ESP32,  Sonoff RF Bridge
 //#define ZactuatorSomfy "Somfy"    //ESP8266, Arduino, ESP32
 //#define ZgatewayRS232   "RS232"  //ESP8266, Arduino, ESP32
 

main/ZsensorSHTC3.ino

@@ -0,0 +1,75 @@
+#include "User_config.h"
+
+#ifdef ZsensorSHTC3
+#  include <SparkFun_SHTC3.h>
+
+SHTC3 mySHTC3;
+
+//Time used to wait for an interval before resending temp and hum
+unsigned long timedht = 0;
+void errorDecoder(SHTC3_Status_TypeDef message);
+
+void errorDecoder(SHTC3_Status_TypeDef message) // The errorDecoder function prints "SHTC3_Status_TypeDef" resultsin a human-friendly way
+{
+  switch (message) {
+    case SHTC3_Status_Nominal:
+      Log.notice("Nominal");
+      break;
+    case SHTC3_Status_Error:
+      Log.error("Error");
+      break;
+    case SHTC3_Status_CRC_Fail:
+      Log.error("CRC Fail");
+      break;
+    default:
+      Log.error("Unknown return code");
+      break;
+  }
+}
+
+void setupSHTC3() {
+  Wire.begin();
+  errorDecoder(mySHTC3.begin()); // To start the sensor you must call "begin()", the default settings use Wire (default Arduino I2C port)
+}
+
+void MeasureTempAndHum() {
+  if (millis() > (timedht + TimeBetweenReadingSHTC3)) { //retrieving value of temperature and humidity of the box from SHTC3 every xUL
+    timedht = millis();
+    static float persistedh;
+    static float persistedt;
+    SHTC3_Status_TypeDef result = mySHTC3.update();
+    if (mySHTC3.lastStatus == SHTC3_Status_Nominal) {
+      // Read temperature as Celsius (the default)
+      float t = mySHTC3.toDegC();
+      float h = mySHTC3.toPercent();
+      // Check if any reads failed and exit early (to try again).
+      if (isnan(h) || isnan(t)) {
+        Log.error(F("Failed to read from SHTC3 sensor!" CR));
+      } else {
+        Log.trace(F("Creating SHTC3 buffer" CR));
+        StaticJsonBuffer<JSON_MSG_BUFFER> jsonBuffer;
+        JsonObject& SHTC3data = jsonBuffer.createObject();
+        if (h != persistedh || shtc3_always) {
+          SHTC3data.set("hum", (float)h);
+        } else {
+          Log.trace(F("Same hum don't send it" CR));
+        }
+        if (t != persistedt || shtc3_always) {
+          SHTC3data.set("temp", (float)t); // remove for 0.9.6 release
+          SHTC3data.set("tempc", (float)t);
+          SHTC3data.set("tempf", mySHTC3.toDegF());
+        } else {
+          Log.trace(F("Same temp don't send it" CR));
+        }
+        if (SHTC3data.size() > 0)
+          pub(SHTC3TOPIC, SHTC3data);
+      }
+      persistedh = h;
+      persistedt = t;
+    } else {
+      errorDecoder(mySHTC3.lastStatus);
+      Log.error(F("Failed to read from SHTC3 sensor!" CR));
+    }
+  }
+}
+#endif

main/config_SHTC3.h

@@ -0,0 +1,52 @@
+/*  
+  OpenMQTTGateway  - ESP8266 or Arduino program for home automation 
+
+   Act as a wifi or ethernet gateway between your 433mhz/infrared IR signal  and a MQTT broker 
+   Send and receiving command by MQTT
+ 
+   This files enables to set your parameter for the SHTC311/22 sensor
+  
+    Copyright: (c)Florian ROBERT
+  
+    This file is part of OpenMQTTGateway.
+    
+    OpenMQTTGateway 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.
+
+    OpenMQTTGateway 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 config_SHTC3_h
+#define config_SHTC3_h
+
+extern void setupSHTC3();
+extern void SHTC3toMQTT();
+
+/*----------------------------USER PARAMETERS-----------------------------*/
+/*-------------DEFINE YOUR MQTT PARAMETERS BELOW----------------*/
+#define SHTC3TOPIC              "/SHTC3toMQTT/shtc31"
+#define shtc3_always            true // if false when the current value for temp or hum is the same as previous one don't send it by MQTT
+#define TimeBetweenReadingSHTC3 30000 // time between 2 SHTC3 readings
+/*-------------SHTC3 SENSOR TYPE-------------*/
+//#define SHTC3_SENSOR_TYPE SHTC311 //uncomment for SHTC311 Sensor
+//#define SHTC3_SENSOR_TYPE SHTC321 //uncomment for SHTC321 Sensor
+#define SHTC3_SENSOR_TYPE SHTC322 //uncomment for SHTC322 Sensor (default for backwards compatibility)
+/*-------------------PIN DEFINITIONS----------------------*/
+#ifndef SHTC3_RECEIVER_GPIO
+#  if defined(ESP8266)
+#    define SHTC3_RECEIVER_GPIO 5 //5 = D1 you can put 14 = D5 if you don't use HCSR501 sensor and the RFM69
+#  elif defined(ESP32)
+#    define SHTC3_RECEIVER_GPIO 16
+#  else
+#    define SHTC3_RECEIVER_GPIO 8
+#  endif
+#endif
+
+#endif

main/main.ino

@@ -111,6 +111,9 @@ JsonArray& modules = modulesBuffer.createArray();
 #ifdef ZsensorDHT
 #  include "config_DHT.h"
 #endif
+#ifdef ZsensorSHTC3
+#  include "config_SHTC3.h"
+#endif
 #ifdef ZsensorDS1820
 #  include "config_DS1820.h"
 #endif
@@ -715,6 +718,9 @@ void setup() {
 #endif
 #ifdef ZmqttDiscovery
   modules.add(ZmqttDiscovery);
+#endif
+#ifdef ZsensorSHTC3
+  setupSHTC3();
 #endif
   Log.trace(F("mqtt_max_packet_size: %d" CR), mqtt_max_packet_size);
   Log.notice(F("Setup OpenMQTTGateway end" CR));
@@ -1273,6 +1279,9 @@ void loop() {
 #ifdef ZsensorDHT
       MeasureTempAndHum(); //Addon to measure the temperature with a DHT
 #endif
+#ifdef ZsensorSHTC3
+      MeasureTempAndHum(); //Addon to measure the temperature with a DHT
+#endif
 #ifdef ZsensorDS1820
       MeasureDS1820Temp(); //Addon to measure the temperature with DS1820 sensor(s)
 #endif

platformio.ini

@@ -113,6 +113,7 @@ m5stickcp = https://github.com/m5stack/M5StickC-Plus.git
 m5stack = M5Stack@0.3.0
 smartrc-cc1101-driver-lib = SmartRC-CC1101-Driver-Lib@2.3.5
 stl = https://github.com/mike-matera/ArduinoSTL.git#7411816
+shtc3 = https://github.com/sparkfun/SparkFun_SHTC3_Arduino_Library
 somfy_remote=Somfy_Remote_Lib@0.2.0 
 
 [env]
@@ -205,6 +206,7 @@ lib_deps =
   ${libraries.onewire}
   ${libraries.dallastemperature}
   ${libraries.rfWeatherStation}
+  ${libraries.shtc3}
 build_flags =
   ${com-esp.build_flags}
   '-DZgatewayRF="RF"'