Finally tracked down docs for the WifiWall-4DEV (which appears to be the same hardware as the WifiWall 2.4) #wifiwall #esp32
The hardware is incredibly well constructed. I have managed to bootstrap MicroPython but was missing how pins were connected. Hopefully this is accurate.
The vendor just told me "We don't support this anymore" and ghosted me.
They can be had for about $40.