int tombol = 2; 
int led_hijau = 3;
int led_kuning = 4;
int led_merah = 5;
int jumlahTekanan;

void setup(){
  pinMode(tombol, INPUT);
  pinMode(led_hijau, OUTPUT);
  pinMode(led_kuning, OUTPUT);
  pinMode(led_merah, OUTPUT);
}

void loop(){
  int statusTombol = digitalRead(tombol);
  if (statusTombol == HIGH){
    jumlahTekanan ++;
    delay(200);
    if(jumlahTekanan==1){
      digitalWrite(led_hijau, HIGH);
    }
    else if(jumlahTekanan==2){
      digitalWrite(led_kuning, HIGH);
    }
    else if(jumlahTekanan==3){
      digitalWrite(led_merah, HIGH);
    }
    else if(jumlahTekanan==4){
      digitalWrite(led_hijau, LOW);
      digitalWrite(led_kuning, LOW);
      digitalWrite(led_merah, LOW);
      jumlahTekanan=0;
    }
  }
}