int spiker = 12;
int pir = 13;
int Jarak;

void setup() {
  pinMode(12, OUTPUT);
  pinMode(13, INPUT);
  Serial.begin(9600);
}

void loop() {
  Jarak = digitalRead(pir);
  if (Jarak == HIGH) {
    tone(spiker, 100);
    Serial.println("Ada Gerakan");
    delay(1000);
  }
  else {
    noTone(spiker);
    Serial.println("Tidak Ada Gerakan");
    delay(1000);
  }
}