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The adafruit code appears to actually connect to the thermometer rather than just looking at advertisements, so I don't know how useful that is.
That's because data in advertisement is encrypted, see https://github.com/Magalex2x14/LYWSD03MMC-info#encryption When connected there is no such encryption! And any device can connect without pairing so it all makes very little sense.
That's why I suggested alternative firmware - there is no such encryption nonsense there. And the firmware was developed from scratch (with Telink SDK available on github) and is opensource.
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Hi @fanoush, you are right, in the next few days I will hack one :-)
See you soon!
The adafruit code appears to actually connect to the thermometer rather than just looking at advertisements, so I don't know how useful that is.
It looks to me like the advertising is using a different format to the one other Xiaomi thermometers use. It's probably better to do:
And then show us everything it prints over the course of a few minutes, with a rough idea of the temperature and humidity the device is showing - and we might be able to work out how to decode it then