// Define the pin numbers for the PIR sensor and the LED
const int pirSensorPin = 8;
const int ledPin = 13;

int pirState = LOW;
int val = 0;

void setup() {
  pinMode(pirSensorPin, INPUT);
  pinMode(ledPin, OUTPUT);
  Serial.begin(9600);
}

void loop() {
  val = digitalRead(pirSensorPin);
  if (val == HIGH) {
    digitalWrite(ledPin, HIGH);  // Turn on the LED when PIR sensor is triggered
    if (pirState == LOW) {
      Serial.println("Motion detected!");
      pirState = HIGH;
    }
  } else {
    digitalWrite(ledPin, LOW);   // Turn off the LED when no motion is detected
    if (pirState == HIGH){
      Serial.println("Motion ended!");
      pirState = LOW;
    }
  }
  delay(100);
}