Nexa App by Athom




This discussion is started to centralize all Questions, Answers and Information around Nexa App for 433 MHz devices


This topic is not actively monitored by Athom. If you have issues with this app, please report it to, mentioning the version of the app + a good description of the issue.


Supported devices

  • CMR-101
  • ECMR-250
  • EYCR-201
  • EYCR-2300
  • LCMR-1000
  • LGDR-3500
  • LKCT-614
  • LMDT-609
  • LMLR-710
  • LMST-606
  • WMR-252
  • WMR-3500

Temporary board for inventory devices for developing New Apps for Telldus and Nexa

Known Issues

Known Issues will be posted below.
Be free to ask and discuss anything around these devices here!

Generic 433MHz issues like a limited receive range, unreliable (one-way) communication disturbance from other 433 devices and a sometimes a hanging RF microcontroller in Homey may affect your experience. See the (to be created Troubleshooting RF 433MHz discussion)

App Contributors

The Nexa App is closed (not available on GitHub) but actively maintained by Athom.

Report Bugs for this App to the Developers

  • Please use the Link in the App Store and follow the community guidelines, the more info provided the faster it can be solved.

Forum Discussion

Initial Discussion created by @Dijker with info from the community
Ask any Moderator to add/update/correct this Discussion.


Nexa - Frequently Asked Questions

To be updated (reserved)


Can you please add support for WTE-1 and WTE-2?


My Nexa-devices dissapear (broken link) when Homey reboots, so I need to re-add them and go through all my flows every time I have rebooted Homey.


This is a know issue, we already fixed it in the next Homey Firmware version (it is caused by a “bug” in Homey core)


Please add support for NEYCT-705 and LWST-615.