// Define the pin numbers for the LEDs
const int greenPin = 13; // Green LED
const int redPin = 2;    // Red LED
const int yellowPin = 4; // Yellow LED
const int buzzerPin = 14;  // You may need to change this based on your board

void setup() {
  // Set the LED pins as outputs
  pinMode(greenPin, OUTPUT);
  pinMode(redPin, OUTPUT);
  pinMode(yellowPin, OUTPUT);
  pinMode(buzzerPin, OUTPUT);

}

void loop() {
  // Blink the traffic light sequence 5 times
  for (int i = 0; i < 5; i++) {
    // Green - Go
    digitalWrite(greenPin, HIGH);
    digitalWrite(redPin, LOW);
    digitalWrite(yellowPin, LOW);
    tone(buzzerPin, 1000);  // Turn on the buzzer at 1000 Hz
    delay(2000); // Stay green for 2 seconds
    noTone(buzzerPin);  // Turn off the buzzer


    // Yellow - Prepare to stop
    digitalWrite(greenPin, LOW);
    digitalWrite(redPin, LOW);
    digitalWrite(yellowPin, HIGH);
    delay(1000); // Wait for 1 second
    tone(buzzerPin, 1500);  // Turn on the buzzer at 1500 Hz
    delay(1000); // Stay yellow for 1 second
    noTone(buzzerPin);  // Turn off the buzzer


    // Red - Stop
    digitalWrite(greenPin, LOW);
    digitalWrite(redPin, HIGH);
    digitalWrite(yellowPin, LOW);
    delay(1000); // Wait for 1 second
    tone(buzzerPin, 2000);  // Turn on the buzzer at 2000 Hz
    delay(2000); // Stay red for 2 seconds
    noTone(buzzerPin);  // Turn off the buzzer
  }

  // After blinking 5 times, you can add additional logic or leave the loop empty.
  // The Arduino will continue running the loop function indefinitely.
}