Some days ago I found a new ESP32 device on aliexpress:
A wm8978 audio codec from Cirrus Logic can be found on this ESP audio board.
The sad thing about this device first: On their github site they only will provide you with binaries for using the audio codec. That’s not nice. So I thought it is a good idea to make live happier and deleted my old github account, opened a new account on gitlab.com and posted a very basic example to get the audio codec running on this device.
You can find the sources here: https://gitlab.com/chlorisdroid/TTGO-T9-RGB_LED-WM8978
This is written in a quick and dirty way and will be polished in the next few hours.