#define PIR 5
#define LED 7

int val=0; // intialaze the value as zero at begining

void setup() {
  // put your setup code here, to run once:
pinMode(PIR, INPUT);
pinMode(LED, OUTPUT);
Serial.begin(9600);
}

void loop() {
  // put your main code here, to run repeatedly:

val = digitalRead(PIR);

if (val ==HIGH){ //if movement detected
 digitalWrite(LED, HIGH); //turn on led
 delay(1000); //for 1 second
 Serial.println("INTRUDER DETECTED");
}
else{
  digitalWrite(LED, LOW);

Serial.println("NO MOVEMENT DETECTED");
}
 
}