How to open the barrier?

Question

Arduino

All the best! Sorry for the not quite correct question...
And so, I had an idea to independently change the barrier in my yard so that I could open and close it using a mobile application :)
Please tell me the scheme of how it would be possible to implement this + what to read :)
I have some skills with Cordova (for a mobile client I think it will do), and nodejs (I'm going to use it as a request processing server with a mobile app)

Answer 1

It is necessary to understand whether the barrier has an external interface and what it is.
- it may have a serial interface for integration into the ACS
- it may have an "open - close" contact interface - an
interface by radio, using a key fob -
there may not be an interface or it may not be available.
I think you are interested in the keychain option.
You can disassemble the key fob and connect to its buttons.
Or reverse the radio protocol. Here you will need skills in using SDR.
The problem is completely solved.

Answer 2

Raspberries are redundant here, like a wristwatch powered by a nuclear reactor. There are Arduino and thousands of examples, incl. about barriers.
If you want JS, then there is Espruino.

Answer 3

Hold it, friend:
Barrier control with Arduino UNO and for the sake of ... ,
Barrier control from a mobile phone ,
GSM modules for barriers .
At my last job, where I worked, a complex system for identifying people, cars and the presence of hidden dangerous objects, written in C ++, was used. the barrier opened and let them through.

Answer 4

Если известен номер шлагбаума и подключенный к нему сотовый, то открыть шлагбаум с телефона элементарно https://sipmex.ru