const byte lampu1 = 13;
const byte lampu2 = 12;
const byte lampu3 = 14;
const byte lampu4 = 27;



void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  pinMode(lampu1, OUTPUT);
  pinMode(lampu2, OUTPUT);
  pinMode(lampu3, OUTPUT);
  pinMode(lampu4, OUTPUT);
  
}

void loop() {
digitalWrite(lampu1, HIGH);
delay(50);
digitalWrite(lampu1, LOW);
delay(50);
digitalWrite(lampu2, HIGH);
delay(50);
digitalWrite(lampu2, LOW);
delay(50);
digitalWrite(lampu3, HIGH);
delay(50);
digitalWrite(lampu3, LOW);
delay(50);
digitalWrite(lampu4, HIGH);


digitalWrite(lampu1, LOW);
digitalWrite(lampu2, LOW);
digitalWrite(lampu3, LOW);
digitalWrite(lampu4, LOW);
delay(500);
}