Pengayaan 1. Lampu Merah di 4 Persimpangan

SKETCH YANG PERLU DIKETIK:

const int merah1 = 2;
const int kuning1 = 1;
const int hijau1 = 0;

const int merah2 = 5;
const int kuning2 = 4;
const int hijau2 = 3;

const int merah3 = 8;
const int kuning3 = 7;
const int hijau3 = 6;

const int merah4 = 11;
const int kuning4 = 10;
const int hijau4 = 9;

int waktu_tanda = 3000;

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);
  
  pinMode(merah4, OUTPUT);
  pinMode(kuning4, OUTPUT);
  pinMode(hijau4, OUTPUT);
}

void loop()
{ // LAMPU MERAH UNIT 1 LAMPU HIJAUNYA MENYALA
  digitalWrite(hijau1, HIGH);
  digitalWrite(merah2, HIGH);
  digitalWrite(merah3, HIGH);
  digitalWrite(merah4, HIGH);
  delay(waktu_tanda); 
  
  digitalWrite(hijau1, LOW);
  digitalWrite(merah2, LOW);
  digitalWrite(merah3, LOW);
  digitalWrite(merah4, LOW);
  delay(100); 
  
  digitalWrite(kuning1, HIGH);
  digitalWrite(kuning2, HIGH);
  digitalWrite(kuning3, HIGH);
  digitalWrite(kuning4, HIGH);
  delay(1000); 
  
  digitalWrite(kuning1, LOW);
  digitalWrite(kuning2, LOW);
  digitalWrite(kuning3, LOW);
  digitalWrite(kuning4, LOW);
  delay(100); 
  
  // LAMPU MERAH UNIT2 LAMPU HIJAUNYA MENYALA
  digitalWrite(hijau2, HIGH);
  digitalWrite(merah1, HIGH);
  digitalWrite(merah3, HIGH);
  digitalWrite(merah4, HIGH);
  delay(waktu_tanda); 
  
  digitalWrite(hijau2, LOW);
  digitalWrite(merah1, LOW);
  digitalWrite(merah3, LOW);
  digitalWrite(merah4, LOW);
  delay(100); 
  
  digitalWrite(kuning1, HIGH);
  digitalWrite(kuning2, HIGH);
  digitalWrite(kuning3, HIGH);
  digitalWrite(kuning4, HIGH);
  delay(1000); 
  
  digitalWrite(kuning1, LOW);
  digitalWrite(kuning2, LOW);
  digitalWrite(kuning3, LOW);
  digitalWrite(kuning4, LOW);
  delay(100);
  
  // LAMPU MERAH UNIT3 LAMPU HIJAUNYA MENYALA
  digitalWrite(hijau3, HIGH);
  digitalWrite(merah1, HIGH);
  digitalWrite(merah2, HIGH);
  digitalWrite(merah4, HIGH);
  delay(waktu_tanda); 
  
  digitalWrite(hijau3, LOW);
  digitalWrite(merah1, LOW);
  digitalWrite(merah2, LOW);
  digitalWrite(merah4, LOW);
  delay(100); 
  
  digitalWrite(kuning1, HIGH);
  digitalWrite(kuning2, HIGH);
  digitalWrite(kuning3, HIGH);
  digitalWrite(kuning4, HIGH);
  delay(1000); 
  
  digitalWrite(kuning1, LOW);
  digitalWrite(kuning2, LOW);
  digitalWrite(kuning3, LOW);
  digitalWrite(kuning4, LOW);
  delay(100);
  
  // LAMPU MERAH UNIT4 LAMPU HIJAUNYA MENYALA
  digitalWrite(hijau4, HIGH);
  digitalWrite(merah1, HIGH);
  digitalWrite(merah2, HIGH);
  digitalWrite(merah3, HIGH);
  delay(waktu_tanda); 
  
  digitalWrite(hijau4, LOW);
  digitalWrite(merah1, LOW);
  digitalWrite(merah2, LOW);
  digitalWrite(merah3, LOW);
  delay(100); 
  
  digitalWrite(kuning1, HIGH);
  digitalWrite(kuning2, HIGH);
  digitalWrite(kuning3, HIGH);
  digitalWrite(kuning4, HIGH);
  delay(1000); 
  
  digitalWrite(kuning1, LOW);
  digitalWrite(kuning2, LOW);
  digitalWrite(kuning3, LOW);
  digitalWrite(kuning4, LOW);
  delay(100);
}