int n;
void setup() {
  // put your setup code here, to run once:
pinMode(6, INPUT);
pinMode(2, OUTPUT);
Serial.begin(9600);
}

void loop() 
{
  n= digitalRead(6);
  if (n==0)
  {
    Serial.println("No motion");
    digitalWrite(2,0);
    delay(1000);
  }
  if (n==1)
  {
    Serial.println("Motion Detected");
    digitalWrite(2,1);
    delay(1000);
  }

}