#define buz 2
#define led 1
#define pir 7
int gerak ;
void setup () {
  pinMode (buz, OUTPUT );
  pinMode (led, OUTPUT );
  pinMode (pir, INPUT );
  Serial.begin (115200);
  // put your setup code here, to run once:

}

void loop() {
  // put your main code here, to run repeatedly:
  gerak = digitalRead (pir);
  if (gerak == 1)
  {
    digitalWrite (led, 1);
    tone (buz, 250);
    Serial.println  ("terdeteksi");
  }
  else {
    digitalWrite (led, 0);
    Serial.println  ("tidak terdeteksi");
    noTone (buz);
  }
}