Hello all,
I found this little bastard.
Do we have any chance to move it to local? esphome/tasmota?
Looks supported by esphome 
https://docs.libretiny.eu/boards/cb3s/
But battery operated could be tricky… 
Thanks!
My only concern is about display.
LCD driver is gnv1792, it will be compatible?
Maybe it’s better to do a swap to 8266?
Regarding power I will add micro usb socket:)
Never heard about this one, but might be that it is actually not directly controlled by th CB3S chip - otherwise it couldn’t get a good battery mileage 
Perfect 
So let’s do testing;)
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Sorry to resurrect a old post - but how did your testing go?
Did you ever end up finding a way to integrate this sensor into HA locally?
Cheers