secplus VS rat-ratgdo

For Chamberlain brands [0] there is some research that shows that their rolling code system (Security+ and Security+ 2.0) is quite easy to decode/decrypt [1]. This feature is supported in the flipper firmware, but is restricted (you can't create a custom remote, only clone is supported) without custom firmware. However, I'm sure you could decode a raw capture file if needed in a pinch.

[0] https://chamberlaingroup.com/our-brands

[1] https://github.com/argilo/secplus

A gentle reminder that the Security+ and Security+ 2.0 RF protocols have been reverse engineered (https://github.com/argilo/secplus). While they are not the most secure thing in the world, you can build a custom RF transmitter (remote) that is network connected.

Having done some research into Chamberlain's products, I don't recommend anyone to use them if they have the choice.

This is not an attempt to break the RF Security+ encryption that this, and other garage doors utilize. That has already happened. https://github.com/argilo/secplus

Here is the rolling code project: https://github.com/argilo/secplus

You may actually need a little bit of extra information to recreate the little PCB board that the ratgdo software relies on to interface the espressif to the terminals of your opener.

It's not terribly complicated but for reasons that are polarizing to many in the garage-door-automation society, the author of the software, although leaving the code completely open source is averse to publishing schematics for the PCB board itself, so others have had to step in and reverse engineer these.

I believe, although I have not verified because I haven't tried this myself, that this site provides both the schematics you need as well as information necessary to Flash the software onto your ESP device.

https://github.com/Kaldek/rat-ratgdo/tree/main