//library
//Variabel


void setup() {
  //program yang di jalankan saat pertama kali Arduino dijalankan
  //Program hanya berjalan satu kali
  //Berisi tentang setting dan pengaturan parameter
  pinMode(8, OUTPUT);
  digitalWrite(8, LOW);
}

void loop() {
//program yang dijalankan secara terus menerus
digitalWrite(13, HIGH);
delay(1000);
digitalWrite(13, LOW);  
delay(1000);
digitalWrite(12, HIGH);
delay(1000);
digitalWrite(12, LOW);  
delay(1000);
digitalWrite(11, HIGH);
delay(1000);
digitalWrite(11, LOW);  
delay(1000);
digitalWrite(10, HIGH);
delay(1000);
digitalWrite(10, LOW);  
delay(1000);
digitalWrite(9, HIGH);
delay(1000);
digitalWrite(9, LOW);  
delay(1000);

}