If you have a eufy scale, you can do this with no LLM needed - just set up an esp32 Bluetooth proxy, add it to home assistant, and then use the EufyLife integration someone already made. I did this recently with my scale to avoid having to sync it to my phone, go to the cloud, fetch data from the cloud, etc., and it's working fantastically. I have a little Home Assistant integration that pokes scale updates to a Python script running locally that provides a UI I like.
Huge fan of running it this way.
(Yesterday I ordered a more commercial, polished-looking esp32 Bluetooth proxy integrated into a smart plug - athome brand - but it's the same functionality, just in a nicer package than having a USB thing dangling from my outlet)
I actually found this out by accident. I set up a BT proxy to capture my combustion thermometers and saw eufy show up as an option and was like wait what? Honestly surprised how open it is.
I'd love to be able to flash a custom firmware on the withings body+ to make the screen truly smart. It's a bummer to know that AI can do all these things if only the firmware was open source / accessible.
Very light on details, but did awaken me to the idea that you can setup HW projects like this without soldering. Bluetooth is practically ubiquitous, and ESPhome does offer this up in a palatable way
The interesting thing here is the opportunity to make a sdk for interfacing with the Withings hardware offline. This is the first public example I’ve seen of someone attempting that
Huge fan of running it this way.
(Yesterday I ordered a more commercial, polished-looking esp32 Bluetooth proxy integrated into a smart plug - athome brand - but it's the same functionality, just in a nicer package than having a USB thing dangling from my outlet)