GitHub - pschatzmann/ESP32-A2DP: A Simple ESP32 Bluetooth A2DP Library (to implement a Music Receiver or Sender) that supports Arduino, PlatformIO and Espressif IDF
ESP-NOW Two-Way Communication Between ESP32 Boards | Random Nerd Tutorials
Bluetooth Audio & Digital Signal Processing: an Arduino Framework : 10 Steps - Instructables
Wifi Bluetooth Development Board | Wireless Wifi Bluetooth Module - Esp32 - Aliexpress
Using an ESP32 and PCM5102 as a Bluetooth audio receiver – Winko Erades