WLED/usermods/ESP32_TouchBrightnessControl/usermod_touchbrightness.h

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//
// usermod_touchbrightness.h
// github.com/aircoookie/WLED
//
// Created by Justin Kühner on 14.09.2020.
// Copyright © 2020 NeariX. All rights reserved.
// https://github.com/NeariX67/
// Discord: @NeariX#4799
#pragma once
#include "wled.h"
#define threshold 40 //Increase value if touches falsely accur. Decrease value if actual touches are not recognized
#define touchPin T0 //T0 = D4 / GPIO4
//Define the 5 brightness levels
//Long press to turn off / on
#define brightness1 51
#define brightness2 102
#define brightness3 153
#define brightness4 204
#define brightness5 255
#ifdef ESP32
class TouchBrightnessControl : public Usermod {
private:
unsigned long lastTime = 0; //Interval
unsigned long lastTouch = 0; //Timestamp of last Touch
unsigned long lastRelease = 0; //Timestamp of last Touch release
boolean released = true; //current Touch state (touched/released)
uint16_t touchReading = 0; //sensor reading, maybe use uint8_t???
uint16_t touchDuration = 0; //duration of last touch
public:
void setup() {
lastTouch = millis();
lastRelease = millis();
lastTime = millis();
}
void loop() {
if (millis() - lastTime >= 50) { //Check every 50ms if a touch occurs
lastTime = millis();
touchReading = touchRead(touchPin); //Read touch sensor on pin T0 (GPIO4 / D4)
if(touchReading < threshold && released) { //Touch started
released = false;
lastTouch = millis();
}
else if(touchReading >= threshold && !released) { //Touch released
released = true;
lastRelease = millis();
touchDuration = lastRelease - lastTouch; //Calculate duration
}
//Serial.println(touchDuration);
if(touchDuration >= 800 && released) { //Toggle power if button press is longer than 800ms
touchDuration = 0; //Reset touch duration to avoid multiple actions on same touch
toggleOnOff();
colorUpdated(2); //Refresh values
}
else if(touchDuration >= 100 && released) { //Switch to next brightness if touch is between 100 and 800ms
touchDuration = 0; //Reset touch duration to avoid multiple actions on same touch
if(bri < brightness1) {
bri = brightness1;
} else if(bri >= brightness1 && bri < brightness2) {
bri = brightness2;
} else if(bri >= brightness2 && bri < brightness3) {
bri = brightness3;
} else if(bri >= brightness3 && bri < brightness4) {
bri = brightness4;
} else if(bri >= brightness4 && bri < brightness5) {
bri = brightness5;
} else if(bri >= brightness5) {
bri = brightness1;
}
colorUpdated(2); //Refresh values
}
}
}
};
#endif