#define buz 2
#define led 3
#define pir 7
int gerak;


void setup() {
  // put your setup code here, to run once:
pinMode(buz, OUTPUT);
pinMode(led, OUTPUT);
pinMode(pir, INPUT);
Serial.begin(115200);
}

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