const int lampu_merah_utara = 2;
const int lampu_kuning_utara = 3;
const int lampu_hijau_utara = 4;
const int lampu_merah_timur = 5;
const int lampu_kuning_timur = 6;
const int lampu_hijau_timur = 7;
const int lampu_merah_selatan = 8;
const int lampu_kuning_selatan = 9;
const int lampu_hijau_selatan = 10;
const int lampu_merah_barat = 11;
const int lampu_kuning_barat = 12;
const int lampu_hijau_barat = 13;
bool case_5 = false;

void setup() {
  pinMode(lampu_merah_utara, OUTPUT);
  pinMode(lampu_kuning_utara, OUTPUT);
  pinMode(lampu_hijau_utara, OUTPUT);
  pinMode(lampu_merah_timur, OUTPUT);
  pinMode(lampu_kuning_timur, OUTPUT);
  pinMode(lampu_hijau_timur, OUTPUT);
  pinMode(lampu_merah_selatan, OUTPUT);
  pinMode(lampu_kuning_selatan, OUTPUT);
  pinMode(lampu_hijau_selatan, OUTPUT);
  pinMode(lampu_merah_barat, OUTPUT);
  pinMode(lampu_kuning_barat, OUTPUT);
  pinMode(lampu_hijau_barat, OUTPUT);
  Serial.begin(9600);
  Serial.println("Pilih salah satu opsi:");
  Serial.println("1. Nyalakan lampu LED merah");
  Serial.println("2. Matikan lampu LED merah");
  Serial.println("3. Nyalakan semua lampu LED");
  Serial.println("4. Jalankan lampu LED");
  Serial.println("5. Lampu LED flip flop 10x");
  Serial.println("6. Matikan semua lampu LED");
}

void loop() {
  if (Serial.available() > 0) {
    int angka = Serial.parseInt();
    switch (angka) {
      case 1:
        digitalWrite(lampu_merah_utara, HIGH);
        break;
      case 2:
        digitalWrite(lampu_merah_utara, LOW);
        break;
      case 3:
        digitalWrite(lampu_merah_utara, HIGH);
        digitalWrite(lampu_kuning_utara, HIGH);
        digitalWrite(lampu_hijau_utara, HIGH);
        digitalWrite(lampu_merah_timur, HIGH);
        digitalWrite(lampu_kuning_timur, HIGH);
        digitalWrite(lampu_hijau_timur, HIGH);
        digitalWrite(lampu_merah_selatan, HIGH);
        digitalWrite(lampu_kuning_selatan, HIGH);
        digitalWrite(lampu_hijau_selatan, HIGH);
        digitalWrite(lampu_merah_barat, HIGH);
        digitalWrite(lampu_kuning_barat, HIGH);
        digitalWrite(lampu_hijau_barat, HIGH);
        break;
      case 4:
        digitalWrite(lampu_merah_utara, HIGH);
        delay(500);
        digitalWrite(lampu_kuning_utara, HIGH);
        delay(500);
        digitalWrite(lampu_hijau_utara, HIGH);
        delay(500);
        digitalWrite(lampu_merah_timur, HIGH);
        delay(500);
        digitalWrite(lampu_kuning_timur, HIGH);
        delay(500);
        digitalWrite(lampu_hijau_timur, HIGH);
        delay(500);
        digitalWrite(lampu_merah_selatan, HIGH);
        delay(500);
        digitalWrite(lampu_kuning_selatan, HIGH);
        delay(500);
        digitalWrite(lampu_hijau_selatan, HIGH);
        delay(500);
        digitalWrite(lampu_merah_barat, HIGH);
        delay(500);
        digitalWrite(lampu_kuning_barat, HIGH);
        delay(500);
        digitalWrite(lampu_hijau_barat, HIGH);
        delay(500);
        break;
      case 5:
        case_5 = true;
        while (case_5) {
          for (int i = 0; i < 100; ++i) {
            digitalWrite(lampu_merah_utara, HIGH);
            digitalWrite(lampu_kuning_utara, HIGH);
            digitalWrite(lampu_hijau_utara, HIGH);
            digitalWrite(lampu_merah_timur, HIGH);
            digitalWrite(lampu_kuning_timur, HIGH);
            digitalWrite(lampu_hijau_timur, HIGH);
            digitalWrite(lampu_merah_selatan, HIGH);
            digitalWrite(lampu_kuning_selatan, HIGH);
            digitalWrite(lampu_hijau_selatan, HIGH);
            digitalWrite(lampu_merah_barat, HIGH);
            digitalWrite(lampu_kuning_barat, HIGH);
            digitalWrite(lampu_hijau_barat, HIGH);
            delay(200);

            digitalWrite(lampu_merah_utara, LOW);
            digitalWrite(lampu_kuning_utara, LOW);
            digitalWrite(lampu_hijau_utara, LOW);
            digitalWrite(lampu_merah_timur, LOW);
            digitalWrite(lampu_kuning_timur, LOW);
            digitalWrite(lampu_hijau_timur, LOW);
            digitalWrite(lampu_merah_selatan, LOW);
            digitalWrite(lampu_kuning_selatan, LOW);
            digitalWrite(lampu_hijau_selatan, LOW);
            digitalWrite(lampu_merah_barat, LOW);
            digitalWrite(lampu_kuning_barat, LOW);
            digitalWrite(lampu_hijau_barat, LOW);
            delay(200);
            if (Serial.available() > 0) {
              char angka = Serial.read();
              if (angka == '1') {
                case_5 = false;
                digitalWrite(lampu_merah_utara, HIGH);
                break;
              } else if (angka == '2') {
                case_5 = false;
                digitalWrite(lampu_merah_utara, LOW);
                break;
              } else if (angka == '3') {
                case_5 = false;
                digitalWrite(lampu_merah_utara, HIGH);
                digitalWrite(lampu_kuning_utara, HIGH);
                digitalWrite(lampu_hijau_utara, HIGH);
                digitalWrite(lampu_merah_timur, HIGH);
                digitalWrite(lampu_kuning_timur, HIGH);
                digitalWrite(lampu_hijau_timur, HIGH);
                digitalWrite(lampu_merah_selatan, HIGH);
                digitalWrite(lampu_kuning_selatan, HIGH);
                digitalWrite(lampu_hijau_selatan, HIGH);
                digitalWrite(lampu_merah_barat, HIGH);
                digitalWrite(lampu_kuning_barat, HIGH);
                digitalWrite(lampu_hijau_barat, HIGH);
                break;
              } else if (angka == '4') {
                case_5 = false;
                digitalWrite(lampu_merah_utara, HIGH);
                delay(500);
                digitalWrite(lampu_kuning_utara, HIGH);
                delay(500);
                digitalWrite(lampu_hijau_utara, HIGH);
                delay(500);
                digitalWrite(lampu_merah_timur, HIGH);
                delay(500);
                digitalWrite(lampu_kuning_timur, HIGH);
                delay(500);
                digitalWrite(lampu_hijau_timur, HIGH);
                delay(500);
                digitalWrite(lampu_merah_selatan, HIGH);
                delay(500);
                digitalWrite(lampu_kuning_selatan, HIGH);
                delay(500);
                digitalWrite(lampu_hijau_selatan, HIGH);
                delay(500);
                digitalWrite(lampu_merah_barat, HIGH);
                delay(500);
                digitalWrite(lampu_kuning_barat, HIGH);
                delay(500);
                digitalWrite(lampu_hijau_barat, HIGH);
                delay(500);
                break;
              } else if (angka == '6') {
                case_5 = false;
                break;
              }
            }
          }
        }
        break;
      case 6:
        digitalWrite(lampu_merah_utara, LOW);
        digitalWrite(lampu_kuning_utara, LOW);
        digitalWrite(lampu_hijau_utara, LOW);
        digitalWrite(lampu_merah_timur, LOW);
        digitalWrite(lampu_kuning_timur, LOW);
        digitalWrite(lampu_hijau_timur, LOW);
        digitalWrite(lampu_merah_selatan, LOW);
        digitalWrite(lampu_kuning_selatan, LOW);
        digitalWrite(lampu_hijau_selatan, LOW);
        digitalWrite(lampu_merah_barat, LOW);
        digitalWrite(lampu_kuning_barat, LOW);
        digitalWrite(lampu_hijau_barat, LOW);
        break;
      default:
        break;
    }
  }
}