const int ledPin = 13; // LED terhubung pada pin 13
const int switchPin = 2; // Saklar terhubung pada pin 2
int switchState = 0;

void setup() {
  pinMode(ledPin, OUTPUT);
  pinMode(switchPin, INPUT);
}

void loop() {
  switchState = digitalRead(switchPin);
  if (switchState == HIGH) {
    digitalWrite(ledPin, HIGH); // Nyalakan LED
  } else {
    digitalWrite(ledPin, LOW); // Matikan LED
  }
}