Hack a fridge

Liebherr sells a "SmartDeviceBox" for their fridges to get online. How does ist work? Can we get some data? Can we reengineer this?

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Georgi Kostadinov wrote 12/22/2021 at 18:31 point

It is very unusual that two power voltages are present, in practice 3.3v is quite enough.

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jan.sykora wrote 09/21/2021 at 10:47 point

I've checked / traced the pins and seems to be +3V, DATA (3V pull-down), GND and 12V

Tried the 1-wire protocol, but no success...

Does anybody has access to the Smartdevicebox device? What protocol is used for the DATA line?

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