const int pinLed=8; //pengenalan Variabel 
void setup() {
pinMode(pinLed, OUTPUT);

}

void loop() {
  digitalWrite(pinLed, HIGH);//memberi nilai nyala lampu
  delay(1000);//memberi jeda 1 detik
  digitalWrite(pinLed, LOW);//memberikan nilai mati lampu
  delay(1000);

}