int red1 = 19;
int yellow1 = 18;
int green1 = 5;
int red2 = 32;
int yellow2 = 33;
int green2 = 25;
int red3 = 17;
int yellow3 = 16;
int green3 = 4;

void setup() {
  Serial.begin(115200);
  Serial.println("Lampu Lalu Lintas🚦");
  delay(1000);
  pinMode(red1, OUTPUT);
  pinMode(yellow1, OUTPUT);
  pinMode(green1, OUTPUT);
  pinMode(red2, OUTPUT);
  pinMode(yellow2, OUTPUT);
  pinMode(green2, OUTPUT);
  pinMode(red3, OUTPUT);
  pinMode(yellow3, OUTPUT);
  pinMode(green3, OUTPUT);

  digitalWrite(red1, HIGH);
  digitalWrite(yellow1, LOW);
  digitalWrite(green1, LOW);
  digitalWrite(red2, HIGH);
  digitalWrite(yellow2, LOW);
  digitalWrite(green2, LOW);
  digitalWrite(red3, HIGH);
  digitalWrite(yellow3, LOW);
  digitalWrite(green3, LOW);
}

void loop() {

  digitalWrite(red1, HIGH);
  digitalWrite(yellow1, LOW);
  digitalWrite(green1, LOW);
  delay(2000);

  digitalWrite(red1, LOW);
  digitalWrite(yellow1, HIGH);
  digitalWrite(green1, LOW);
  delay(1000);

  digitalWrite(red1, LOW);
  digitalWrite(yellow1, LOW);
  digitalWrite(green1, HIGH);
  delay(4000);

  digitalWrite(red2, HIGH);
  digitalWrite(yellow2, LOW);
  digitalWrite(green2, LOW);
  digitalWrite(red3, HIGH);
  digitalWrite(yellow3, LOW);
  digitalWrite(green3, LOW);
  delay(4000);

  digitalWrite(red1, HIGH);
  digitalWrite(yellow1, LOW);
  digitalWrite(green1, LOW);
  delay(500);

  digitalWrite(red2, LOW);
  digitalWrite(yellow2, LOW);
  digitalWrite(green2, HIGH);
  delay(4000);

  digitalWrite(red2, LOW);
  digitalWrite(yellow2, HIGH);
  digitalWrite(green2, LOW);
  delay(1000);

  digitalWrite(red1, HIGH);
  digitalWrite(yellow1, LOW);
  digitalWrite(green1, LOW);
  digitalWrite(red3, HIGH);
  digitalWrite(yellow3, LOW);
  digitalWrite(green3, LOW);
  delay(4000);

  digitalWrite(red1, HIGH);
  digitalWrite(yellow1, LOW);
  digitalWrite(green1, LOW);
  delay(500); 

  digitalWrite(red2, HIGH);
  digitalWrite(yellow2, LOW);
  digitalWrite(green2, LOW);
  delay(500);

  digitalWrite(red3, LOW);
  digitalWrite(yellow3, LOW);
  digitalWrite(green3, HIGH);
  delay(4000);

  delay(4000);
}