Bluetooth audio 2ch receiver by ESP32 and PCM5102A - YouTube
Turning the 'AI Thinker Audio Kit' into an Arduino Bluetooth Speaker - Phil Schatzmann
Using an ESP32 and PCM5102 as a Bluetooth audio receiver – Winko Erades
Bluetooth Audio Receiver with PCM5102A - Uwe's Tinkerblog
Technoblogy - I2S Speaker for QT Py
GitHub - pschatzmann/ESP32-A2DP: A Simple ESP32 Bluetooth A2DP Library (to implement a Music Receiver or Sender) that supports Arduino, PlatformIO and Espressif IDF
A Beginner's Tutorial on ESP32 Bluetooth | Learn ESP32 Classic Bluetooth