Utilizing an open source all in one sound card and serial connection that uses one cable.

This is where I got mine. Already pre made. Great customer service. Highly recommend.
https://na6d.com/

Here is the open source page for all info to make your own.
https://github.com/skuep/AIOC

Using IJV 3.14 firmware with DSB
https://www.universirius.com/en_gb/pr...