const int touchPin = 4; // Use a touch-capable pin on ESP32 (e.g., GPIO4 is T0)
const int ledPin = 19;
const int threshold = 20;

void setup() {
  Serial.begin(115200);
  pinMode(ledPin, OUTPUT);
}

void loop() {
  int touchValue = touchRead(touchPin);
  Serial.print("Touch value: ");
  Serial.println(touchValue);

  if (touchValue < threshold) {
    digitalWrite(ledPin, HIGH);
  } else {
    digitalWrite(ledPin, LOW);
  }
  delay(100);
}