  We often find illegal immigrants moving from one country to another. By means
of land these illegal immigrants move over the fence cut the border wires and
moves to the other part of the land. What do you think our soldiers are not
doing their job? It is not that actually. It is very difficult to watch
consistently over the border. Soldiers have a limited vision to check around
the whole land mass. So for them we have come up with a solution that we have
built a device that will sense the presence of an intruder (illegal immigrant).
This device will be installed over the fences. When an intruder passes over the
fence this device will transmit the signal to the soldiers Smartphone app
(BLYNK app). The soldier will be notified with the signal and after receiving
the signal, the soldier can switch on the alarm and the emergency lights via
the app. By this the soldiers in the camp will be alerted and can take their
respective positions and arrest the intruder which was passing the border
illegally. By this device we can alert the soldiers in the border to take more
safety precautions to keep our country safe. Index Terms-Node MCU ESP32,
infrared sensor, Blynk app.
