const int irSensorPin = 2;  // IR sensor output pin
const int relayPin = 3;     // Relay control pin
const int ledPin = 4;       // LED pin

// Variables
int objectDetected = 0;     // Flag to track object detection

void setup() {
  pinMode(irSensorPin, INPUT);
  pinMode(relayPin, OUTPUT);
  pinMode(ledPin, OUTPUT);
  
  digitalWrite(relayPin, LOW);  // Turn off the relay initially
  digitalWrite(ledPin, LOW);    // Turn off the LED initially
  Serial.begin(9600);           // Initialize serial communication for debugging
}

void loop() {
  objectDetected = digitalRead(irSensorPin);  // Read IR sensor status

  if (objectDetected == HIGH) {
    // Object detected
    digitalWrite(relayPin, HIGH);  // Turn on the relay
    digitalWrite(ledPin, HIGH);    // Turn on the LED
    Serial.println("Object detected!");
  } else {
    // No object detected
    digitalWrite(relayPin, LOW);  // Turn off the relay
    digitalWrite(ledPin, LOW);    // Turn off the LED
    Serial.println("No object detected.");
  }

  delay(5000);  // Add a small delay for stability
}