Greetings,
While plumbing the depths of AliExpress as one tends to do in the middle of the night, I encountered
a new product manufactured by WONDOM. It is effectively just an ADAU1701 in a convenient enclosure with all of the analog IO exposed, along with potentiometers and switches on the front panel. An additional potentiometer is included on the rear panel. All controls are labelled with the name of their GPIO pin, which should simplify identification in Sigma Studio.
View attachment 301084 View attachment 301085
The unit is powered via USB-C and a USBi (for Sigma Studio configuration) is handled by a JST connector which matches that of WONDOM's existing ICP board. Incidentally, I would recommend purchasing the Tinysine USBi rather than WONDOM's ICP, as it is far more stable and robust.
The price is €38 (add €20 if you need a USBi interface), which I believe to be excellent value for money and I will likely be ordering one (or two).