The PIR Sensor

void setup() {
  pinMode (2,INPUT); // The PIR Sensor
  pinMode (13,OUTPUT); // The LED

}

void loop() {
  int val=digitalRead(2);
if (val==1){ //When object passed
  digitalWrite(13,HIGH);//ON
  delay(10000);         //Wait
  digitalWrite(13,LOW); //Off
}else{      // When No Object Passed
  digitalWrite(13,LOW); //off
}
}