I’ve been working on an add-on, mostly for my personal use, that wraps up both rtl_433 into an add-on, AND handles creation of MQTT devices in Home Assistant. Devices, not just entities!
This is quite a bit different that the other rtl_433 add-on in that mine does not create devices automatically, you have to specify a few pieces of info before it creates anything, and also that mine creates devices, rather than bare entities. Creating entities automatically seems like a pretty terrible thing, since I have a ton of sensors around me that I pick up ones every few days, every few weeks, etc. Just often enough that it’d create a whole ton of spam in my HA install, so I prefer a slightly more manual approach to adding devices.
Find the add-on here. Please let me know if there’s any bugs or any additions/feature requests. I’ve also got an add-on there for Snapcast server (with Librespot), and a WIP progress one for Cyberpower Pwrstat, which needs more work before it’s ready to release.
Thanks