Sonoff Mini R4 garage opener wiring?

Ideas & Suggestion Free discussion
1

Hello,

I usually use the mini R4 to manage lights, I know it can be used for lot of other things.
I would like to use it with my garage opener but I can’t do it unfortunately, I want to confirm if it’s already possible.
Here is specs for my garage opener control unit (in french) 106605.pdf.
I want to add the mini r4 as secondary smart control and keep unit normal functionality (with remote control and “p.Alt” switch.

Thank you for your help !

2

Your garage controler needs “non powered” or ISOLATED contacts in order to open / close the garage door, Mini R4 puts MAINS power in its output. So it is not possible to manage that directly except if you put a contactor in the output of Mini R4 to convert that powered output into a non powered or “dry contact”. Other alternative is to use the smart rele card Sonoff RE5V1C or 4ch PRO, both has a dry contact output.