#define ledMerah 13
#define ledKuning 12
#define ledHijau 11
#define tombol 7

int status = 0;
void setup() {
  //put your code here, to run once
  pinMode(ledMerah, OUTPUT);
  pinMode(ledKuning, OUTPUT);
  pinMode(ledHijau, OUTPUT);
  pinMode(tombol, INPUT);
  digitalWrite(ledMerah, LOW);
  digitalWrite(ledKuning, LOW);
  digitalWrite(ledHijau, LOW);
}

void loop() {
  //put your code here, to run repeatedly
  if(digitalRead(tombol) == HIGH){
    digitalWrite(ledKuning, HIGH);
    delay(3000);
    digitalWrite(ledKuning, LOW);
    digitalWrite(ledMerah, HIGH);
    delay(5000);
    digitalWrite(ledMerah, LOW);
    digitalWrite(ledKuning, HIGH);
    delay(2000);
    digitalWrite(ledMerah, LOW);
    digitalWrite(ledKuning, LOW);
    digitalWrite(ledHijau, HIGH);
    delay(3000);
    digitalWrite(ledMerah, LOW);
    digitalWrite(ledKuning, LOW);
    digitalWrite(ledHijau, LOW);
    return;
  }
}