int Merah1 = 2;
int Kuning1 = 3;
int Hijau1 = 4;

int Merah2 = 5;
int Kuning2 = 6;
int Hijau2 = 7;

int Merah3 = 8;
int Kuning3 = 9;
int Hijau3 = 10;

void setup() {
  pinMode(Merah1, OUTPUT);
  pinMode(Kuning1, OUTPUT);
  pinMode(Hijau1, OUTPUT);
  
  pinMode(Merah2, OUTPUT);
  pinMode(Kuning2, OUTPUT);
  pinMode(Hijau2, OUTPUT);
  
  pinMode(Merah3, OUTPUT);
  pinMode(Kuning3, OUTPUT);
  pinMode(Hijau3, OUTPUT);

  Serial.begin(9600);
}

void loop() {
  Paket1();
  Paket2();
}

void Paket1() {
  
  digitalWrite(Merah1, LOW);
  digitalWrite(Kuning1, LOW);
  digitalWrite(Hijau1, HIGH);

  digitalWrite(Merah2, HIGH);
  digitalWrite(Kuning2, LOW);
  digitalWrite(Hijau2, LOW);

  digitalWrite(Merah3, HIGH);
  digitalWrite(Kuning3, LOW);
  digitalWrite(Hijau3, LOW);
  delay(3000);

  digitalWrite(Merah2, LOW);
  digitalWrite(Hijau1, LOW);
  digitalWrite(Kuning1, HIGH);
  digitalWrite(Kuning2, HIGH);
  delay(1000);

  digitalWrite(Kuning1, LOW);
  digitalWrite(Kuning2, LOW);
  Serial.println("Jalur 2 Jalan");
  digitalWrite(Hijau2, HIGH);
  digitalWrite(Merah1, HIGH);
  delay(3000);

}

void Paket2(){

  digitalWrite(Hijau2,LOW);
  digitalWrite(Merah3, LOW);
  digitalWrite(Kuning2, HIGH);
  digitalWrite(Kuning3, HIGH);
  delay(1000);

  digitalWrite(Kuning2, LOW);
  digitalWrite(Kuning3, LOW);
  Serial.println("Hijau 3 Jalan");
  digitalWrite(Merah2, HIGH);
  digitalWrite(Hijau3, HIGH);
  delay(3000);

  digitalWrite(Merah1, LOW);
  digitalWrite(Hijau3, LOW);
  digitalWrite(Kuning3, HIGH);
  digitalWrite(Kuning1, HIGH);
  delay(1000);
  
  digitalWrite(Kuning3, LOW);
  digitalWrite(Kuning1, LOW);
  Serial.println("Jalur 1 Jalan");
  digitalWrite(Merah3, HIGH);
  digitalWrite(Hijau1, HIGH);
  delay(3000);


}