Boris Tobotras

Guys, I've just bought the device off dadget.ru (AKA masterkit.ru) and got the same error message. Have looked into the protocol, and it turns out we just don't need decode_buf...

Here you go: https://github.com/tobotras/co2mon/commit/c60a11b51fd81f44d58e7bb959215501a6c424dd See also additional options there: -o only print values once and quit; -t only show temperature; -c only show CO2 concentration

@dmage, many thanks for the tool, to start from! Here you go: Bus 001 Device 012: ID 04d9:a052 Holtek Semiconductor, Inc. USB-zyTemp Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.10...

There is a way in doing guesswork trying with and without encoding :-D