#define led_green 5
#define led_red 6
#define led_yellow 7
#define pbutton 4

void setup() {
  // put your setup code here, to run once:
  pinMode(led_green, OUTPUT);
  pinMode(led_red, OUTPUT);
  pinMode(led_yellow, OUTPUT);
  pinMode(pbutton, INPUT);

}

void loop() {
  // put your main code here, to run repeatedly:
  if (digitalRead(pbutton) == HIGH){
    //kuning menyala 3 detik
    digitalWrite(led_yellow, HIGH);
    delay(1000);
    delay(1000);
    delay(1000);
    digitalWrite(led_yellow, LOW);
    
    digitalWrite(led_red, HIGH);
    delay(1000);
    delay(1000);
    delay(1000);
    delay(1000);
    delay(1000);
    digitalWrite(led_yellow, HIGH);
    delay(1000);
    delay(1000);
    digitalWrite(led_yellow, LOW);
    digitalWrite(led_red, LOW);   
    digitalWrite(led_green, HIGH);
    delay(1000);
    delay(1000);
    delay(1000);
    digitalWrite(led_yellow, LOW);
    digitalWrite(led_green, LOW);
    digitalWrite(led_red, LOW);
  }
  else{
    digitalWrite(led_yellow, LOW);
    digitalWrite(led_green, LOW);
    digitalWrite(led_red, LOW);
  }


}