int led = 13;
int pir =9;
int pirvalue=0;
void setup() {
  pinMode(led, OUTPUT);
  pinMode(pir, INPUT);
  Serial.begin(9600); // put your setup code here, to run once:

}

void loop() {
  int pirvalue=digitalRead(pir);
  Serial.println(pirvalue);
  if (pirvalue==LOW){
    digitalWrite(led, LOW);
    Serial.println("no movement");
    delay(1000);
  
  }
  else{
    digitalWrite(led, HIGH);
    Serial.println("movement");
    delay(1000);
  }

}