And digikey
https://www.digikey.com/products/en?keywords=1175-1735

They make an Audio Development Framework. Maybe that would interest your team.

OK, Thanks

My fault-- I tried to upgrade the tools without reading the directions! Mac OSX printenv IDF_PATH -- works cp -r $IDF_PATH/examples/get-started/hello_world . -- works make menuconfig -- works make flash -- xtensa-esp32-elf-gcc: command not found WARNING: Failed to find Xtensa toolchain, may need to ...

This is how I use esp-now: /* __________________________________________ GLOBAL INFO core 0 is the communications processor. Uses the ESP-NOW protocol on the 2.4 GHz radio This process runs as a task created on core 1 core 1 is the UI processor. Maintains the M5Stack LCD menu Runs Arduino setup() an...

With all that area, would be a dream to route the board!
But the new consideration would be maximum trace length.

If talkie for Arduino works for you you can try
https://github.com/bobh/ESP32Talkie
Output is on a DAC pin.

I read this: “Above options are mutually exclusive, i.e. the power supply may be provided using only one of the above options. Attempt to power the board using more than one connection at a time may damage the board and/or the power supply source.” From: https://docs.espressif.com/projects/esp-idf/e...

To inhibit the voltage I layout jumper pins directly in front of the devC board usb connector with a tall jumper :D . The jumper physically prevents inserting a usb cable but connects internal power when installed. Remove for development. If that is what that rpi circuit is for. https://www.digikey....

I just identify the new or risky part of a design, breadboard that, then go straight to a board. This was a switching regulator module on the boards out for fab now. I’m sort of in transition. I use the biggest module now whenever possible. Instead of a ESP32-Wroom module I use a complete DevkitC. I...