# Nexa in-the-wall MWMR-251

**URL:** <https://community.homey.app/t/nexa-in-the-wall-mwmr-251/86146>\
**Category:** Devices\
**Created:** [August 4, 2023, 4:41pm UTC](https://community.homey.app/t/nexa-in-the-wall-mwmr-251/86146 "2023-08-04T16:41:36Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Mr.W](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/mr.w/32/80488_2.png) [@Mr.W](https://community.homey.app/u/Mr.W)\
**Post date:** [August 4, 2023, 4:41pm UTC](https://community.homey.app/t/nexa-in-the-wall-mwmr-251/86146/1 "2023-08-04T16:41:36Z")

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Hi all, I just bought my first Homey (Pro 2023), so pardon the perhaps newbie question.  
I am trying to add all my older in-the-wall Nexa devices but I have little luck.  
I have a large number of the dimmer/switch MWMR-251, a very convenient little thing that also allows me to control and sim the lights with a regular switch.  
I just can’t seem to add it to my Homey. I have tried as advised from an older post here but using the Trust Smart Home app and the settings for ACM 250, but no luck.  
I can not get it to copy from the Nexa remote either. What am I doing wrong?  
Tips anyone?