#define MERAH 19
#define KUNING 18
#define HIJAU 5
#define TOMBOL 15

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  pinMode(MERAH, OUTPUT);
  pinMode(KUNING, OUTPUT);
  pinMode(HIJAU, OUTPUT);
  pinMode(TOMBOL, INPUT);
}

void loop() {
  if (digitalRead(TOMBOL) == HIGH) {
    digitalWrite(KUNING, HIGH);
    delay(3000);
    digitalWrite(KUNING, LOW);
    digitalWrite(MERAH, HIGH);
    delay(5000);
    digitalWrite(KUNING, HIGH);
    delay(2000);
    digitalWrite(MERAH, LOW);
    digitalWrite(KUNING, LOW);
    digitalWrite(HIJAU, HIGH);
    delay(3000);
    } else {
    digitalWrite(MERAH, LOW);
    digitalWrite(KUNING, LOW);
    digitalWrite(HIJAU, LOW);
  }
}