const int signalPin = 14;
int signal_read;
bool sensor_ON = false;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  signal_read=analogRead(signalPin);
  Serial.println((signal_read));
}

void loop() {
  // put your main code here, to run repeatedly:
  delay(10); // this speeds up the simulation
  signal_read=analogRead(signalPin);
  if(signal_read==4095) {
    if(sensor_ON == false) {
      Serial.println("Motion Detection started");
      sensor_ON = true;
    }
  }
  else {
    if(sensor_ON == true) {
      Serial.println("Motion Detection ended");
      sensor_ON = false;
    }
  }
}