Trying to add a 433Mhz communal gate to HA

Hi Everyone,

Recently my building added a communal gate, it works on 433mhz with a rolling code. My goal is to add a 433mhz transmitter near my window that can open the gate. To do so I need to ‘copy’ the signal. This is a rolling code… been looking around on the web but can’t seem to find a clear guide to do this…

Preferably I would like to avoid soldering etc., but willing to go there :slight_smile:

The sytem itself:

Any help greatly appreciated!

The rolling code is a feature that prevents a simple copying of the signal.
You need to get the algorithm for the rolling code to succeed.