void setup() {
  pinMode(12, OUTPUT); // Pin LED
}

void loop() {
  int sensorValue = analogRead(A0); // Membaca nilai analog
  if(sensorValue > 512) {
    digitalWrite(12, HIGH); // Menyalakan LED jika nilai > 512
  } else {
    digitalWrite(12, LOW); // Mematikan LED jika nilai <= 512
  }

}