// Traffic Light Arduino Uno Code with Toggle Button

const int redPin = 13;       // Red LED connected to digital pin 13
const int greenPin = 12;     // Green LED connected to digital pin 12
const int orangePin = 11;    // Orange LED connected to digital pin 11
const int toggleButtonPin = 10; // Toggle button connected to digital pin 10

int buttonState = 0;
int lastButtonState = 0;
bool trafficLightRunning = false;
int cycleCount = 0;

void setup() {
  pinMode(redPin, OUTPUT);
  pinMode(greenPin, OUTPUT);
  pinMode(orangePin, OUTPUT);
  pinMode(toggleButtonPin, INPUT);
}

void loop() {
  buttonState = digitalRead(toggleButtonPin);

  if (buttonState == HIGH && lastButtonState == LOW) {
    trafficLightRunning = !trafficLightRunning; // Toggle the traffic light state on button press
    delay(50); // Debounce delay
  }

  lastButtonState = buttonState;

  if (trafficLightRunning) {
    // Red light for 4 seconds
    digitalWrite(redPin, HIGH);
    delay(4000);  // 4 seconds
    digitalWrite(redPin, LOW);
    delay(1000);

    // Orange light for 1 second
    digitalWrite(orangePin, HIGH);
    delay(1000);  // 1 second
    digitalWrite(orangePin, LOW);
    delay(1000);
    digitalWrite(orangePin, HIGH);
    delay(1000);  // 1 second
    digitalWrite(orangePin, LOW);
    delay(1000);

    // Green and Red lights together for 5 seconds
    digitalWrite(greenPin, HIGH);
    delay(5000);  // 5 seconds
    digitalWrite(greenPin, LOW);
    delay(1000);

    // Orange light for 1 second
    digitalWrite(orangePin, HIGH);
    delay(1000);  // 1 second
    digitalWrite(orangePin, LOW);
    delay(1000);
    digitalWrite(orangePin, HIGH);
    delay(1000);  // 1 second
    digitalWrite(orangePin, LOW);
    delay(1000);

    // Green and Red lights together for 4 seconds
    digitalWrite(greenPin, HIGH);
    digitalWrite(redPin, HIGH);
    delay(4000);  // 4 seconds
    digitalWrite(greenPin, LOW);
    digitalWrite(redPin, LOW);
    delay(1000);

    cycleCount++;

    if (cycleCount >= 3) {
      trafficLightRunning = false; // Stop after 3 cycles
      cycleCount = 0; // Reset cycle count for the next activation
    }
  }
}