int PIR = 27;
int LED = 14;
void setup() {
  pinMode(PIR,INPUT_PULLUP);    
  pinMode(LED, OUTPUT);
Serial.begin(115200);
}
void loop() {
  int a=digitalRead(PIR);
  if (a==1)
  {
    digitalWrite(LED, HIGH);
    Serial.println("Motion detected");
  }
  else
  {
    digitalWrite(LED, LOW);
  Serial.println("Not detected");  
}
delay(4000);
  }