boolean m;
void setup() {
  // put your setup code here, to run once:
  pinMode(11, INPUT_PULLUP);
  Serial.begin(9600);

}

void loop() {
  // put your main code here, to run repeatedly:
  m=digitalRead(11);
  Serial.println(m);

  if(m==1){

     Serial.println(" yay !!!movement");

  }
 
  else{
     Serial.println("no movement ");
  }

  delay(1000);

}