// Tentukan pin LED yang akan digunakan
const int merah1 = 13; // Anda dapat mengganti angka 13 dengan pin yang Anda gunakan
const int kuning1 = 12;
const int hijau1 = 27;
const int merah2 = 25;
const int kuning2 = 26;
const int hijau2 = 14;
const int merah3 = 17;
const int kuning3 = 2;
const int hijau3 = 33;
const int merah4 = 32;
const int kuning4 = 21;
const int hijau4 = 19;
void setup() {
// Inisialisasi pin LED sebagai OUTPUT
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);
pinMode(merah4, OUTPUT);
pinMode(kuning4, OUTPUT);
pinMode(hijau4, OUTPUT);
}
void loop() {
// Nyalakan LED
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); 
digitalWrite(merah4, HIGH); 
digitalWrite(kuning4, LOW); 
digitalWrite(hijau4, LOW);
delay(2000); // Tahan LED selama 1 detik
digitalWrite(merah1, LOW); 
digitalWrite(kuning1, HIGH); 
digitalWrite(hijau1, LOW); 
digitalWrite(merah2, HIGH); 
digitalWrite(kuning2, HIGH); 
digitalWrite(hijau2, LOW); 
digitalWrite(merah3, HIGH); 
digitalWrite(kuning3, LOW); 
digitalWrite(hijau3, LOW); 
digitalWrite(merah4, HIGH); 
digitalWrite(kuning4, LOW); 
digitalWrite(hijau4, LOW);
delay(2000); // Tahan LED selama 1 detik
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); 
digitalWrite(merah4, HIGH); 
digitalWrite(kuning4, LOW); 
digitalWrite(hijau4, LOW);
delay(2000); // Tahan LED selama 1 detik
digitalWrite(merah1, HIGH); 
digitalWrite(kuning1, LOW); 
digitalWrite(hijau1, LOW); 
digitalWrite(merah2, LOW); 
digitalWrite(kuning2, HIGH); 
digitalWrite(hijau2, LOW); 
digitalWrite(merah3, HIGH); 
digitalWrite(kuning3, HIGH); 
digitalWrite(hijau3, LOW); 
digitalWrite(merah4, HIGH); 
digitalWrite(kuning4, LOW); 
digitalWrite(hijau4, LOW);
delay(2000); // Tahan LED selama 1 detik
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); 
digitalWrite(merah4, HIGH); 
digitalWrite(kuning4, LOW); 
digitalWrite(hijau4, LOW);
delay(2000); // Tahan LED selama 1 detik
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); 
digitalWrite(merah4, HIGH); 
digitalWrite(kuning4, HIGH); 
digitalWrite(hijau4, LOW);
delay(2000); // Tahan LED selama 1 detik
digitalWrite(merah1, HIGH); 
digitalWrite(kuning1, LOW); 
digitalWrite(hijau1, LOW); 
digitalWrite(merah2, HIGH); 
digitalWrite(kuning2, LOW); 
digitalWrite(hijau2, LOW); 
digitalWrite(merah3, HIGH); 
digitalWrite(kuning3, LOW); 
digitalWrite(hijau3, LOW); 
digitalWrite(merah4, LOW); 
digitalWrite(kuning4, LOW); 
digitalWrite(hijau4, HIGH);
delay(2000); // Tahan LED selama 1 detik
digitalWrite(merah1, HIGH); 
digitalWrite(kuning1, HIGH); 
digitalWrite(hijau1, LOW); 
digitalWrite(merah2, HIGH); 
digitalWrite(kuning2, LOW); 
digitalWrite(hijau2, LOW); 
digitalWrite(merah3, HIGH); 
digitalWrite(kuning3, LOW); 
digitalWrite(hijau3, LOW); 
digitalWrite(merah4, LOW); 
digitalWrite(kuning4, HIGH); 
digitalWrite(hijau4, LOW);
delay(2000); // Tahan LED selama 1 detik
// Matikan LED
}