// Traffic Light Pin Assignments

// Side A
const int redA = 13;
const int yellowA = 12;
const int greenA = 11;

// Side B
const int redB = 7;
const int yellowB = 6;
const int greenB = 5;

void setup() {
  // Set all pins to OUTPUT mode
  pinMode(redA, OUTPUT);
  pinMode(yellowA, OUTPUT);
  pinMode(greenA, OUTPUT);
  
  pinMode(redB, OUTPUT);
  pinMode(yellowB, OUTPUT);
  pinMode(greenB, OUTPUT);
}

void loop() {
  // --- Side A: Green | Side B: Red ---
  digitalWrite(greenA, HIGH);
  digitalWrite(yellowA, LOW);
  digitalWrite(redA, LOW);
  
  digitalWrite(redB, HIGH);
  digitalWrite(yellowB, LOW);
  digitalWrite(greenB, LOW);
  delay(5000);

  // --- Side A: Yellow | Side B: Red ---
  digitalWrite(greenA, LOW);
  digitalWrite(yellowA, HIGH);
  digitalWrite(redA, LOW);
  delay(2000);

 

  // --- Side A: Red | Side B: Green ---
  digitalWrite(greenA, LOW);
  digitalWrite(yellowA, LOW);
  digitalWrite(redA, HIGH);
  
  digitalWrite(greenB, HIGH);
  digitalWrite(yellowB, LOW);
  digitalWrite(redB, LOW);
  delay(5000);

  // --- Side A: Red | Side B: Yellow ---
  digitalWrite(greenB, LOW);
  digitalWrite(yellowB, HIGH);
  digitalWrite(redB, LOW);
  delay(2000);

 
}