#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(tombol, INPUT);
  pinMode(LED_hijau, OUTPUT);
  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(500);
  }
  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);
  }
}