const int pinled=12;

void setup() {
  Serial.begin(9600);
  pinMode(pinled, OUTPUT);
  Serial.println("program siap dimulai");

}

void loop() {
  digitalWrite(pinled, HIGH);
  Serial.println("Led sudah menyala");
  delay(1000);
  digitalWrite(pinled, LOW);
  Serial.println("Led sudah mati");
  delay(1000);

}