int led_merah = 34;
int led_kuning = 35;
int led_hijau = 32;
int led_biru = 21;
int led_orange = 18;
int led_putih = 19;
int led_pink = 5;
int current_led = led_merah;  // LED saat ini yang sedang menyala

void setup() {
  pinMode(led_merah, OUTPUT);
  pinMode(led_kuning, OUTPUT);
  pinMode(led_hijau, OUTPUT);
  pinMode(led_biru, OUTPUT);
  pinMode(led_orange, OUTPUT);
  pinMode(led_putih, OUTPUT);
  pinMode(led_pink, OUTPUT);
}

void loop() {
  digitalWrite(current_led, LOW);  // Matikan LED saat ini
  delay(500);
  if (current_led == led_merah) {
    current_led = led_kuning;
  } else if (current_led == led_kuning) {
    current_led = led_hijau;
  } else if (current_led == led_hijau) {
    current_led = led_biru;
  } else if (current_led == led_biru) {
    current_led = led_orange;
  } else if (current_led == led_orange) {
    current_led = led_putih;
  } else if (current_led == led_putih) {
    current_led = led_pink;
  } else if (current_led == led_pink) {
    current_led = led_merah;
  }
  digitalWrite(current_led, HIGH);  // Nyala LED yang baru
  delay(500);
}