I had test the CN-0234 EVB, it looks well.
I have plan to use same solutions, but not same core chip. Could you help to provide the example code (C language) for our reference?
Glad you like the gas detection circuit in CN0234.
Unfortunately we don't have any C-code written for the evaluation of the gas detector. We do have some basic driver code written for the ADC here at this link, http://wiki.analog.com/resources/tools-software/uc-drivers/renesas/ad7799 so hopefully this may be of some use to you.
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