int pir=8;
int led=10;

void setup()

{
pinMode(pir, INPUT); 
pinMode(led, OUTPUT);
Serial.begin(9600);
}

void loop()
 {
  int pir_value=digitalRead(pir);
  Serial.println(pir_value);
  if(pir_value==HIGH)
  {
   Serial.println("objected is dectated");
   digitalWrite(led,HIGH);

  }
  else{
    Serial.println("objected is not dectated");
    digitalWrite(led,LOW);

    
  }
}