# Sonoff Mini R4 garage opener wiring?

**URL:** <https://forum.ewelink.cc/t/sonoff-mini-r4-garage-opener-wiring/27910>\
**Category:** Free discussion\
**Created:** [February 1, 2024, 1:15pm UTC](https://forum.ewelink.cc/t/sonoff-mini-r4-garage-opener-wiring/27910 "2024-02-01T13:15:16Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![kiman](https://avatars.discourse-cdn.com/v4/letter/k/838e76/32.png) [@kiman](https://forum.ewelink.cc/u/kiman)\
**Post date:** [February 1, 2024, 1:15pm UTC](https://forum.ewelink.cc/t/sonoff-mini-r4-garage-opener-wiring/27910/1 "2024-02-01T13:15:16Z")

</div>

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](https://www.probip.com/notice/notice-pdf/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 !

---

<div class="post-metadata">

**Author:** ![mario.bianchi](https://avatars.discourse-cdn.com/v4/letter/m/f17d59/32.png) [@mario.bianchi](https://forum.ewelink.cc/u/mario.bianchi)\
**Post date:** [March 16, 2024, 1:13am UTC](https://forum.ewelink.cc/t/sonoff-mini-r4-garage-opener-wiring/27910/2 "2024-03-16T01:13:30Z")

</div>

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.