// ESP32 - Control LED with two touch pins
// One touch = LED ON, Another touch = LED OFF

const int ledPin = 2;        // Onboard LED (GPIO2)

// Choose touch pins
const int touchOn  = T0;     // GPIO4 → Touch pin for ON
const int touchOff = T3;     // GPIO15 → Touch pin for OFF

int threshold = 40;          // Adjust experimentally
int touchValueOn, touchValueOff;

void setup() {
  Serial.begin(115200);
  pinMode(ledPin, OUTPUT);
  digitalWrite(ledPin, LOW); // LED initially OFF
}

void loop() {
  // Read touch values
  touchValueOn  = touchRead(touchOn);
  touchValueOff = touchRead(touchOff);

  Serial.print("ON pin: ");
  Serial.print(touchValueOn);
  Serial.print(" | OFF pin: ");
  Serial.println(touchValueOff);

  // If ON touch detected
  if (touchValueOn < threshold) {
    digitalWrite(ledPin, HIGH);
  }

  // If OFF touch detected
  if (touchValueOff < threshold) {
    digitalWrite(ledPin, LOW);
  }

  delay(100);
}