int LED = 13;
int PIR = 2;

void setup() 
{
pinMode(PIR, INPUT);
pinMode(LED, OUTPUT);
Serial.begin(9600);
}

void loop() 
{
int value = digitalRead(PIR);

if (value==HIGH)
{
  digitalWrite(LED, HIGH);
  Serial.println("Motion Detected");
  Serial.println("Lights ON");
  delay(1000);
}
else
{
  digitalWrite(LED, LOW);
  Serial.println("Motion Not Detected");
  Serial.println("Lights OFF");
  delay(1000);
}
}