const int led = 7; // LED connected to digital pin 7
const int sensor = 5; // PIR sensor connected to digital pin 5
const int button = 9; // Push button connected to digital pin 9
int sensorVal = 0; // Variable to store sensor value
int buttonVal = 0; // Variable to store button value

void setup() {
  pinMode(led, OUTPUT);    // Set the LED as an output
  pinMode(sensor, INPUT);  // Set the PIR motion sensor as an input
  pinMode(button, INPUT);  // Set the push button as an input
  Serial.begin(9600);      // Initialize serial communication at 9600 baud rate
}

void loop() {
  sensorVal = digitalRead(sensor);  // Read the sensor value
  buttonVal = digitalRead(button);  // Read the button state

  if (sensorVal == HIGH || buttonVal == HIGH) { // If motion detected or button pressed
    digitalWrite(led, HIGH);  // Turn the LED on
    Serial.println("Motion detected or button pressed");  // Print message
  }
  else {
    digitalWrite(led, LOW);  // Turn the LED off
    Serial.println("No motion and button not pressed");  // Print no action message
  }

  delay(500);  // Delay for 500 milliseconds
}