int IRSensor=9;//connect ir sensor module to arduino pin 9
int LED=13;//conect LED to arduino pin 13
void setup() {
 Serial.begin(115200);//nit serila at 115200 baud
Serial.println("Serial working");//test to check if serial is working or not
 pinMode(IRSensor, INPUT);//IR Sensor pin INPUT
 pinMode(LED, OUTPUT);//LED pin output
}
void loop() {
 int sensorstatus=digitalRead(IRSensor);
 if(sensorstatus==1)
 {
 
 digitalWrite(LED, LOW);//LED LOW
 Serial.println("Motion ended!");
 }
  //else turn on the onboard LED
  digitalWrite(LED, HIGH);//LED high
  Serial.println("motion detected");
}