int ledPin = 13;
int inputPin = 15;
int pirState = LOW;
int val = 0;

void setup(){
  pinMode(ledPin, OUTPUT);
  pinMode(inputPin, INPUT);
}

void loop(){
  val = digitalRead(inputPin);
  if (val == HIGH){
    digitalWrite(ledPin, HIGH);
    if(pirState == LOW){
      Serial.println("Gerakan Terdeteksi");
      pirState = HIGH;
    }
  }else{
    digitalWrite(ledPin, LOW);
    if(pirState == HIGH){
      Serial.println("TIDAK ADA GERAKAN");
      pirState = LOW;
    }
  }
}