Need help connection de CMT2300A module

[Drallass]

Hello there openDTU community,

I spent a couple of hours yesterday night trying to get my openDTU device up and running, but eventually I got stuck. I hope there is someone here to guide me in the right direction.

Flashing the firmware on the ESP went pretty smoothly, but I manage to get the CMT configured. I guess it has something to do with the wiring or de configuration file, but I ran out of ideas where to look. There problem is that I think the CMT module is properly connected, but under info -> system the status of the CMT2300A module is: "not connected". Any advice will be greatly appreciated!

I have the ESP32 and the module wired as follows:

CMT2300A Pin Name	Pin Number CMT2300A	ESP32 Pin
MOSI (PB6)	11	GPIO23
MISO (PB7)	10	GPIO19
SCLK (PB5)	12	GPIO18
NSS (PB4)	13	GPIO21

My pin_mapping.json file is as follows:

[
    {
        "name": "CMT2300A on ESP32",
        "cmt": {
            "cs": 21,
            "clk": 18,
            "sdio": 23,
            "fcs": 19
        }
    }
]

The documentation of my ESP32 board

And the documentation of the pinout on my CMT2300A board

[schneeer]

Please look here:
#902 (comment)