Hi, to anyone interested, I’ve designed a circuit board that connects the Sparkfun Codec to the Sparkfun Thing Plus ESP32.
It includes a MIDI interface and a convenient set of pads and header for connecting external controllers.
I’ve also put together a software package for programming Audio Effects on any Codec connected to an ESP32, with full documentation and tutorials.
Check it all out on my website, https://www.jtalbert.xyz/ESP32/
– John Talbert, retired electronic music tech