vague fox
I'm trying to wrap my head around MQTT auto discovery, and I gather that for Home Assistant to "autodiscover" devices, I need to manually send a very specific, and very specifically formatted, MQTT message...
Maybe it's just me, but that doesn't seem very "auto" to me... Or have I gotten this all wrong?
queen zephyr
Usually a device or software application would support it for integration with HA
E.g. esphome devices https://esphome.io/components/mqtt.html#using-device-discovery-with-home-assistant
etc.
vague fox
Or rtl_433 devices <https://github.com/merbanan/rtl_433/blob/master/examples/rtl...
Oh. It's precisely an rtl_433 device!
I'm receiving weather station data on a Raspberry Pi running rtl_433 and publishing to mqtt. So - this python script - should I run that on the Raspberry Pi? And should I just run it once, or continuously?
Oh, just once, I see. Thank you so much! 😊
queen zephyr
Yeah looks like you can run it once in awhile or continuously. I just use manual MQTT entities for my rtl_433 stuff.
vague fox
Thanks!
dire wharf
You don't have to, the device need to do it. Aka, it has to publish once how and where it expects it's commands. For a device it should not be to hard to implement
vague fox
You don't have to, the device need to do it. Aka, it has to publish once how and...
Yeah, but in this case, I'm kinda making the device myself 😉
dire wharf
Yeah, sending the right discovery message is indeed up to the maker of the device. So in this case, you 😄 I mean, a device has to share something about it's capabilities. HA cannot make it up out of thin air :p