void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  if(!Serial) Serial.println("Serial Tidak Benar");
  pinMode(3, OUTPUT);
  pinMode(4, OUTPUT);
  pinMode(5, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  digitalWrite(3, HIGH);
  Serial.println("Green is ON");
  delay(2000);
  digitalWrite(3, LOW);
  Serial.println("Green is OFF");
  digitalWrite(4, HIGH);
  Serial.println("Yellow is ON");
  delay(600);
  digitalWrite(4, LOW);
  Serial.println("Yellow is OFF");
  digitalWrite(5, HIGH);
  Serial.println("Red is ON");
  delay(1000);
  digitalWrite(4, HIGH);
  Serial.println("Yellow is ON");
  delay(400);
  digitalWrite(5, LOW);
  Serial.println("Red is OFF");
  digitalWrite(4, LOW);
  Serial.println("Yellow is OFF");

}