void setup() {
  // put your setup code here, to run once:
pinMode(7,OUTPUT);
pinMode(5, INPUT);
Serial.begin(9600);
}

void loop() {
  int pir=digitalRead(5);
  Serial.println(pir);
  if(digitalRead(5)==1){
    digitalWrite(7, HIGH);
  }
  else{
    digitalWrite(7, LOW);
  }
  delay(1000);
}