#define redLedPin 22
#define greenLedPin 19
#define blueLedPin 18

#define redTouchPin T5
#define greenTouchPin T7
#define blueTouchPin T8

#define potPin 15
#define PWMChannel 0

const int freq = 5000;
const int resolution = 8;
uint16_t dutyCycle;

int redTouchData = 0;
int greenTouchData = 0;
int blueTouchData = 0;

int potData = 0;
float voltage = 0.0; 

void setup() {
  pinMode(redLedPin, OUTPUT);
  pinMode(greenLedPin, OUTPUT);
  pinMode(blueLedPin, OUTPUT);
  ledcSetup(PWMChannel, freq, resolution);
  ledcAttachPin(redLedPin, PWMChannel);
  ledcAttachPin(greenLedPin, PWMChannel);
  ledcAttachPin(blueLedPin, PWMChannel);
  Serial.begin(115200);
}

void loop() {

  redTouchData = touchRead(redTouchPin);
  Serial.print(" Touch =  ");
  Serial.print(redTouchData);

  greenTouchData = touchRead(greenTouchPin);
  Serial.print(" : ");
  Serial.print(greenTouchData);

  blueTouchData = touchRead(blueTouchPin);
  Serial.print(" : ");
  Serial.print(blueTouchData);

  potData = analogRead(potPin);
  Serial.print("\tPotentiometer = ");
  Serial.print(potData);

  voltage = (float)potData / 4095 * 3.3;
  Serial.print("\tVoltage = ");
  Serial.println(voltage);

  dutyCycle = map(potData, 0, 4095, 0, 255);
  ledcWrite(PWMChannel, dutyCycle);


  if(redTouchData < 50 ){
    ledcAttachPin(redLedPin, PWMChannel);
    ledcDetachPin(blueLedPin);
    ledcDetachPin(greenLedPin);
  }
  else if(greenTouchData < 50 ) {
    ledcAttachPin(greenLedPin, PWMChannel);
    ledcDetachPin(blueLedPin);
    ledcDetachPin(redLedPin);
  }
  else if(blueTouchData < 50 ) {
    ledcAttachPin(blueLedPin, PWMChannel);
    ledcDetachPin(redLedPin);
    ledcDetachPin(greenLedPin);
  }
  else if(blueTouchData < 50 ) {
    ledcAttachPin(blueLedPin, PWMChannel);
    ledcDetachPin(redLedPin);
    ledcDetachPin(greenLedPin);
  }
  else if(blueTouchData < 50 && blueTouchData < 50 redTouchData < 50) {
    ledcDetachPin(blueLedPin, PWMChannel);
    ledcDetachPin(redLedPin);
    ledcDetachPin(greenLedPin);
  }
  else{
  ledcAttachPin(redLedPin, PWMChannel);
  ledcAttachPin(greenLedPin, PWMChannel);
  ledcAttachPin(blueLedPin, PWMChannel);
  }
}