How to make a LASER PEOPLE COUNTER / laser security alarm

In this video i will show you how to make a simple Laser people counter which counts how many people have passed into the room and went out of the room using two laser. Which can be connected with light's or any other home appliances. by doing this the light or anything that is connected will turn on when some on enters into the room. The light will turn off when you leave the room.
CIRCUIT DIAGRAM AND ARDUINO CODE
https://drive.google.com/open?id=119PfUYEJSzIdi7MEzLecp-WPOTnlZaOj

Видео How to make a LASER PEOPLE COUNTER / laser security alarm канала MAKER Q