const int pir = 12; 
const int buzzer = 22; 
const int led = 18; 

void setup() {
  Serial.begin(115200);
  pinMode(pir, INPUT);
  pinMode(buzzer, OUTPUT);
  pinMode(led, OUTPUT);
  digitalWrite(buzzer, HIGH);
  digitalWrite(led, LOW);
  tone(buzzer, 10000);
}

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

  if (motionDetected == HIGH) {
    Serial.println("Motion Detected!");
    digitalWrite(buzzer, LOW);
    digitalWrite(led, HIGH);
    noTone(buzzer);
  } else {
    digitalWrite(buzzer, HIGH);
    digitalWrite(led, LOW);
    tone(buzzer, 10000);
  }
  delay(100);
}