[TOUCH] Add a sensor for esp32's touch sensing (#1650)
This commit is contained in:
flo-x authored and GitHub committed
1 parent
88fc5643e8
commit
73913a33a2
4 files changed
+280
No files matched your search
@@ -0,0 +1,154 @@
|
||||
/*
|
||||
OpenMQTTGateway Addon - 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
|
||||
|
||||
For esp32, touch sensor reading add-on.
|
||||
|
||||
Copyright: (c) Florian Xhumari
|
||||
|
||||
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/>.
|
||||
*/
|
||||
#include <HardwareSerial.h>
|
||||
|
||||
#include "ArduinoJson.h"
|
||||
#include "User_config.h"
|
||||
#include "config_Touch.h"
|
||||
|
||||
#ifdef ZsensorTouch
|
||||
|
||||
# ifndef ESP32
|
||||
# error Only supported on esp32
|
||||
# endif
|
||||
|
||||
//Time used to wait for an interval before resending touch sensor value
|
||||
static unsigned long touchTimeRead = 0;
|
||||
|
||||
// for each touch button
|
||||
struct TouchStatus {
|
||||
uint8_t pin;
|
||||
uint16_t timePublished = 0;
|
||||
uint16_t timeStatusChanged = 0;
|
||||
uint16_t avg = 10 * 256; // starting value; multiplied by 256
|
||||
bool isOn = false;
|
||||
bool wasOn = false;
|
||||
int onCount = 0; // number of consecutive readings that were considered "ON"
|
||||
unsigned long onTime; // time the button was turned on
|
||||
};
|
||||
|
||||
static TouchStatus status[TOUCH_SENSORS];
|
||||
|
||||
void setupTouch() {
|
||||
# if TOUCH_SENSORS > 0
|
||||
status[0].pin = TOUCH_GPIO_0;
|
||||
# endif
|
||||
# if TOUCH_SENSORS > 1
|
||||
status[1].pin = TOUCH_GPIO_1;
|
||||
# endif
|
||||
# if TOUCH_SENSORS > 2
|
||||
status[2].pin = TOUCH_GPIO_2;
|
||||
# endif
|
||||
# if TOUCH_SENSORS > 3
|
||||
status[3].pin = TOUCH_GPIO_3;
|
||||
# endif
|
||||
# if TOUCH_SENSORS > 4
|
||||
status[4].pin = TOUCH_GPIO_4;
|
||||
# endif
|
||||
# if TOUCH_SENSORS > 5
|
||||
status[5].pin = TOUCH_GPIO_5;
|
||||
# endif
|
||||
# if TOUCH_SENSORS > 6
|
||||
status[6].pin = TOUCH_GPIO_6;
|
||||
# endif
|
||||
# if TOUCH_SENSORS > 7
|
||||
status[7].pin = TOUCH_GPIO_7;
|
||||
# endif
|
||||
# if TOUCH_SENSORS > 8
|
||||
status[8].pin = TOUCH_GPIO_8;
|
||||
# endif
|
||||
# if TOUCH_SENSORS > 9
|
||||
status[9].pin = TOUCH_GPIO_9;
|
||||
# endif
|
||||
for (int i = 0; i < TOUCH_SENSORS; i++) {
|
||||
Log.notice(F("TOUCH_GPIO_%d: %d" CR), i, status[i].pin);
|
||||
}
|
||||
touchTimeRead = millis() - TOUCH_TIME_BETWEEN_READINGS; // so we get a first reading at the beginning
|
||||
}
|
||||
|
||||
void MeasureTouch() {
|
||||
unsigned long now = millis();
|
||||
if (now - touchTimeRead < TOUCH_TIME_BETWEEN_READINGS) {
|
||||
return;
|
||||
}
|
||||
touchTimeRead = now;
|
||||
for (int i = 0; i < TOUCH_SENSORS; i++) {
|
||||
TouchStatus* button = &status[i];
|
||||
|
||||
uint16_t val = touchRead(button->pin);
|
||||
if (val == 0) {
|
||||
// just ignore a 0 reading
|
||||
continue;
|
||||
}
|
||||
|
||||
// we'll work in 1/265th of a unit value returned by touchRead(), in order
|
||||
// to have a better precision when performing averages and divisions, while
|
||||
// not using floating point calculations.
|
||||
uint16_t curValue = val * 256;
|
||||
bool isOn = (curValue < button->avg * (TOUCH_THRESHOLD * 256 / 100) / 256); // just so that we divide by 256 and not by 100
|
||||
if (!isOn) {
|
||||
button->avg = (button->avg * 127 + val * 256 * 1) / 128; // exponential averaging, factor = 1/128
|
||||
}
|
||||
int lastOnCount = button->onCount;
|
||||
if (isOn) {
|
||||
++button->onCount;
|
||||
} else {
|
||||
button->onCount = 0;
|
||||
}
|
||||
|
||||
bool isStatusChanged = false;
|
||||
if (((button->wasOn && !isOn) || (!button->wasOn && isOn && button->onCount >= TOUCH_MIN_DURATION / TOUCH_TIME_BETWEEN_READINGS)) && now - button->timeStatusChanged > TOUCH_DEBOUNCE_TIME) { // debounce
|
||||
isStatusChanged = true;
|
||||
button->wasOn = isOn;
|
||||
button->timeStatusChanged = now;
|
||||
if (isOn) {
|
||||
button->onTime = now;
|
||||
}
|
||||
}
|
||||
// keep timeStatusChanged from getting too old, so not to go
|
||||
// beyond timestamp wrapping
|
||||
if (now - button->timeStatusChanged > 100000) {
|
||||
button->timeStatusChanged = now - 100000;
|
||||
}
|
||||
if (isStatusChanged) {
|
||||
const int JSON_MSG_CALC_BUFFER = JSON_OBJECT_SIZE(4);
|
||||
StaticJsonDocument<JSON_MSG_CALC_BUFFER> jsonDoc;
|
||||
JsonObject touchData = jsonDoc.to<JsonObject>();
|
||||
touchData["id"] = i;
|
||||
touchData["on"] = (isOn ? 1 : 0);
|
||||
touchData["value"] = (int)(curValue / 256);
|
||||
if (!isOn) { // when turning off, send the duration the button was on
|
||||
touchData["onDuration"] = now - button->onTime + TOUCH_MIN_DURATION;
|
||||
}
|
||||
pub(TOUCHTOPIC, touchData);
|
||||
button->timePublished = now;
|
||||
}
|
||||
// adjust measure time so that min(avg of all buttons) is around 60 (between 40 and 80)
|
||||
// TODO
|
||||
|
||||
} // loop
|
||||
}
|
||||
#endif
|
||||
@@ -0,0 +1,101 @@
|
||||
/*
|
||||
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 esp32's touch buttons
|
||||
|
||||
Copyright: (c) Florian Xhumari
|
||||
Uses work by 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_Touch_h
|
||||
#define config_Touch_h
|
||||
|
||||
extern void setupTouch();
|
||||
extern void touchToMQTT();
|
||||
/*----------------------------USER PARAMETERS-----------------------------*/
|
||||
/*-------------DEFINE YOUR MQTT PARAMETERS BELOW----------------*/
|
||||
#define TOUCHTOPIC "/touchToMQTT"
|
||||
|
||||
// Time between readings of the touch sensor. Don't make it too short, as
|
||||
// reading one touch sensor takes 0.5 ms.
|
||||
#if !defined(TOUCH_TIME_BETWEEN_READINGS) || (TOUCH_TIME_BETWEEN_READINGS) < 10
|
||||
# define TOUCH_TIME_BETWEEN_READINGS 30
|
||||
#endif
|
||||
|
||||
// We take the average reading of the sensor, and consider as "touched" state
|
||||
// any reading less than average * TOUCH_THRESHOLD / 100.
|
||||
#if !defined(TOUCH_THRESHOLD)
|
||||
# define TOUCH_THRESHOLD 75
|
||||
#endif
|
||||
|
||||
// Minimum duration of "touched" state to generate a touch event. By default,
|
||||
// we'll wait 3 readings indicating "touched" in order to generate a touch event.
|
||||
#if !defined(TOUCH_MIN_DURATION) || (TOUCH_MIN_DURATION < 10)
|
||||
# define TOUCH_MIN_DURATION 90
|
||||
#endif
|
||||
|
||||
// After a touch was sensed, don't consider changes to "touched" status
|
||||
// for this duration.
|
||||
#if !defined(TOUCH_DEBOUNCE_TIME) || (TOUCH_DEBOUNCE_TIME < 100)
|
||||
# define TOUCH_DEBOUNCE_TIME 200
|
||||
#endif
|
||||
|
||||
/****************************************
|
||||
*
|
||||
* One can define TOUCH_GPIO, or TOUCH_GPIO_0 through TOUCH_GPIO_9 to
|
||||
* include up to 10 sensors.
|
||||
*
|
||||
* By default there's only one sensor at TOUCH_GPIO, default to
|
||||
* pin 4 (T0).
|
||||
*
|
||||
****************************************/
|
||||
|
||||
#if defined(TOUCH_GPIO) && !defined(TOUCH_GPIO_0)
|
||||
# define TOUCH_GPIO_0 (TOUCH_GPIO)
|
||||
#endif
|
||||
|
||||
#if !defined(TOUCH_GPIO_0)
|
||||
// T0 == GPIO 4
|
||||
# define TOUCH_GPIO_0 T0
|
||||
#endif
|
||||
|
||||
#if defined(TOUCH_GPIO_1) && defined(TOUCH_GPIO_2) && defined(TOUCH_GPIO_3) && defined(TOUCH_GPIO_4) && defined(TOUCH_GPIO_5) && defined(TOUCH_GPIO_6) && defined(TOUCH_GPIO_7) && defined(TOUCH_GPIO_8) && defined(TOUCH_GPIO_9)
|
||||
# define TOUCH_SENSORS 10
|
||||
#elif defined(TOUCH_GPIO_1) && defined(TOUCH_GPIO_2) && defined(TOUCH_GPIO_3) && defined(TOUCH_GPIO_4) && defined(TOUCH_GPIO_5) && defined(TOUCH_GPIO_6) && defined(TOUCH_GPIO_7) && defined(TOUCH_GPIO_8)
|
||||
# define TOUCH_SENSORS 9
|
||||
#elif defined(TOUCH_GPIO_1) && defined(TOUCH_GPIO_2) && defined(TOUCH_GPIO_3) && defined(TOUCH_GPIO_4) && defined(TOUCH_GPIO_5) && defined(TOUCH_GPIO_6) && defined(TOUCH_GPIO_7)
|
||||
# define TOUCH_SENSORS 8
|
||||
#elif defined(TOUCH_GPIO_1) && defined(TOUCH_GPIO_2) && defined(TOUCH_GPIO_3) && defined(TOUCH_GPIO_4) && defined(TOUCH_GPIO_5) && defined(TOUCH_GPIO_6)
|
||||
# define TOUCH_SENSORS 7
|
||||
#elif defined(TOUCH_GPIO_1) && defined(TOUCH_GPIO_2) && defined(TOUCH_GPIO_3) && defined(TOUCH_GPIO_4) && defined(TOUCH_GPIO_5)
|
||||
# define TOUCH_SENSORS 6
|
||||
#elif defined(TOUCH_GPIO_1) && defined(TOUCH_GPIO_2) && defined(TOUCH_GPIO_3) && defined(TOUCH_GPIO_4)
|
||||
# define TOUCH_SENSORS 5
|
||||
#elif defined(TOUCH_GPIO_1) && defined(TOUCH_GPIO_2) && defined(TOUCH_GPIO_3)
|
||||
# define TOUCH_SENSORS 4
|
||||
#elif defined(TOUCH_GPIO_1) && defined(TOUCH_GPIO_2)
|
||||
# define TOUCH_SENSORS 3
|
||||
#elif defined(TOUCH_GPIO_1)
|
||||
# define TOUCH_SENSORS 2
|
||||
#else
|
||||
# define TOUCH_SENSORS 1
|
||||
#endif
|
||||
|
||||
#endif
|
||||
@@ -168,6 +168,9 @@ struct GfSun2000Data {};
|
||||
#ifdef ZsensorGPIOKeyCode
|
||||
# include "config_GPIOKeyCode.h"
|
||||
#endif
|
||||
#ifdef ZsensorTouch
|
||||
# include "config_Touch.h"
|
||||
#endif
|
||||
#ifdef ZmqttDiscovery
|
||||
# include "config_mqttDiscovery.h"
|
||||
#endif
|
||||
@@ -1026,6 +1029,10 @@ void setup() {
|
||||
setupADC();
|
||||
modules.add(ZsensorADC);
|
||||
#endif
|
||||
#ifdef ZsensorTouch
|
||||
setupTouch();
|
||||
modules.add(ZsensorTouch);
|
||||
#endif
|
||||
#ifdef ZsensorC37_YL83_HMRD
|
||||
setupZsensorC37_YL83_HMRD();
|
||||
modules.add(ZsensorC37_YL83_HMRD);
|
||||
@@ -1744,6 +1751,9 @@ void loop() {
|
||||
#ifdef ZsensorADC
|
||||
MeasureADC(); //Addon to measure the analog value of analog pin
|
||||
#endif
|
||||
#ifdef ZsensorTouch
|
||||
MeasureTouch();
|
||||
#endif
|
||||
#ifdef ZgatewayLORA
|
||||
LORAtoMQTT();
|
||||
#endif
|
||||
|
||||
Reference in new issue
Block a user