Hello, I bought this cheap thermometer on TEMU.
Do you think this can be read with arduino with sp32
Can you read it now with the PC you are using? If so, then the answer is probably yes.
No idea about that Arduino but with an ESP32 it should work if you can get the necessary information to communicate with it.
Unfortunately, I can only read through the smart life application (phone).
Yes you could read it with an ESP32 that has bluetooth.
No documentation --> no fun
And is there a proven method how to read?
Because as you can see below, there is no documentation.
Yes, the method is basically common to all blutooth devices. Once you connect to the device you can request it's characteristics.
Don't ask me for details on how to do it with an ESP32, I'm no expert with ESP32 bluetooth.
Well, if it uses "standard services" here's the docs: https://www.bluetooth.com/wp-content/uploads/Files/Specification/HTML/Assigned_Numbers/out/en/Assigned_Numbers.pdf
Problem is, what if does not?
install nRFConnect on your smarphone, this application can give you some informations about :
-content of Advertizing (maybe température is sent here, -> readable without connection)
-Services and Characteristics (température generally received after asking for Notification for some Service/characteristic)
(You can also find on the net somme hacking infos for a device from Mija Xiaomi : LYWSD03MMC)
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