#define pir_sensor 2
bool status_pir;

#define buzzer 3
bool status_buzzer = 0;

void setup()
{
  // put your setup code here, to run once:
  Serial.begin(9600);
  pinMode(pir_sensor, INPUT);
  pinMode(buzzer, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  status_pir = digitalRead(pir_sensor);
  Serial.println(status_pir);

  if (status_pir == true)
  {
    //digitalWrite(pin output, status);
    digitalWrite(buzzer, HIGH);
  }
  else {
    digitalWrite(buzzer, LOW);
  }
}