int merah1=11; // lampu 1 bagian kiri
int kuning1=10;
int hijau1=9;
int merah2=7; // lampu 2 bagian tengah
int kuning2=6;
int hijau2=5;
int merah3=3; // lampu 3 bagian kanan
int kuning3=2;
int hijau3=8;

void setup() {
    // 26 Noviana Nur Rohmah Kelas XII-2
  Serial.begin(9600);
  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);
}

void loop() {
  //kondisi 1
  digitalWrite(merah1, HIGH);
  digitalWrite(kuning1, LOW);
  digitalWrite(hijau1, LOW);
  digitalWrite(merah2, HIGH);
  digitalWrite(kuning2, LOW);
  digitalWrite(hijau2, LOW);
  digitalWrite(merah3, LOW);
  digitalWrite(kuning3, HIGH);
  digitalWrite(hijau3, LOW);

  //kondisi 2
  delay(3000);
  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);

  //kondisi 3
  delay(3000);
  digitalWrite(merah1, LOW);
  digitalWrite(kuning1, HIGH);
  digitalWrite(hijau1, LOW);
  digitalWrite(merah2, HIGH);
  digitalWrite(kuning2, LOW);
  digitalWrite(hijau2, LOW);
  digitalWrite(merah3, HIGH);
  digitalWrite(kuning3, LOW);
  digitalWrite(hijau3, LOW);

  //kondisi 4
  delay(3000);
  digitalWrite(merah1, HIGH);
  digitalWrite(kuning1, LOW);
  digitalWrite(hijau1, LOW);
  digitalWrite(merah2, LOW);
  digitalWrite(kuning2, LOW);
  digitalWrite(hijau2, HIGH);
  digitalWrite(merah3, HIGH);
  digitalWrite(kuning3, LOW);
  digitalWrite(hijau3, LOW);

  //kondisi 5
  delay(3000);
  digitalWrite(merah1, HIGH);
  digitalWrite(kuning1, LOW);
  digitalWrite(hijau1, LOW);
  digitalWrite(merah2, LOW);
  digitalWrite(kuning2, HIGH);
  digitalWrite(hijau2, LOW);
  digitalWrite(merah3, HIGH);
  digitalWrite(kuning3, LOW);
  digitalWrite(hijau3, LOW);

  //kondisi 6
  delay(3000);
  digitalWrite(merah1, HIGH);
  digitalWrite(kuning1, LOW);
  digitalWrite(hijau1, LOW);
  digitalWrite(merah2, HIGH);
  digitalWrite(kuning2, LOW);
  digitalWrite(hijau2, LOW);
  digitalWrite(merah3, LOW);
  digitalWrite(kuning3, LOW);
  digitalWrite(hijau3, HIGH);
  delay(3000);
  }