int PIR=18;
int Relay =2;
void setup() {
  pinMode(PIR, INPUT);
  pinMode(Relay, OUTPUT);
  Serial.begin(9600);
}

void loop() {
  int Pinvalue=digitalRead(PIR);
 Serial.print("PIR SENSOR VALUE");
 Serial.println(Pinvalue);
 if(Pinvalue ==1){
  digitalWrite(Relay, HIGH);
 }
else{
  digitalWrite(Relay, LOW);

}
delay(1000);
}