#define LED_hijau 13
#define LED_biru 12
#define LED_merah 11
#define tombol 7

int status = 0 ;
void setup() {
  // put your setup code here, to run once:
pinMode(LED_hijau, OUTPUT);
pinMode(tombol, INPUT);
pinMode(LED_biru, OUTPUT);
pinMode(LED_merah, OUTPUT);
digitalWrite(LED_hijau, LOW);
digitalWrite(LED_biru, LOW);
digitalWrite(LED_merah, LOW);
}

void loop() {
  // put your main code here, to run repeatedly:
if(digitalRead (tombol)==HIGH ) {
  status ++ ;
  delay (1000);
}

if(status == 1){
  digitalWrite(LED_hijau, HIGH);
}
else if(status == 2){
  digitalWrite(LED_biru, HIGH);
}
else if(status == 3){
  digitalWrite(LED_merah, HIGH);
}
else if(status == 4){
  status = 0 ;
}
else
{
  digitalWrite(LED_hijau, LOW);
  digitalWrite(LED_biru, LOW);
  digitalWrite(LED_merah, LOW);
}
}