int buzz = 9;
int pir = 2;
int led = 8;

void setup() {
  pinMode(buzz, OUTPUT);
  pinMode(led, OUTPUT);
  pinMode(pir, INPUT);
  Serial.begin(9600);
}

void loop() {
  int status = digitalRead(pir);

  Serial.print("Sensor value: ");
  Serial.println(status);


  if (status == HIGH) {
    Serial.println("Motion Detected");
    digitalWrite(led, HIGH);
    tone(buzz, 1000, 700);
    delay(2000);
  } else {
    Serial.println("No one is there");
    digitalWrite(led, LOW);
    delay(1000);
  }
}