int pinMerah = 5;
int pinKuning = 17;
int pinHijau = 16;
void setup() {
  // put your setup code here, to run once:
  //Serial.begin(115200);
  //Serial.println("Hello, ESP32!");
  pinMode(pinMerah, OUTPUT);
  pinMode(pinKuning, OUTPUT);
  pinMode(pinHijau, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  //delay(10); // this speeds up the simulation
  digitalWrite(pinMerah, HIGH);
  digitalWrite(pinKuning, LOW);
  digitalWrite(pinHijau, LOW);
  delay(1000);
  digitalWrite(pinMerah, LOW);
  digitalWrite(pinKuning, HIGH);
  digitalWrite(pinHijau, LOW);
  delay(1000);
  digitalWrite(pinMerah, LOW);
  digitalWrite(pinKuning, LOW);
  digitalWrite(pinHijau, HIGH);
  delay(1000);
}