Audio project based on an M5StickC Plus (ESP32) with I²S digital audio output:

• Internet radio
• Bluetooth A2DP sink
• Song info can be sent to IFTTT webhook

• Visual Studio Code (version 1.64.0)
• PlatformIO IDE for VSCode

• Device: M5StickC Plus
• Platform: espressif32
• Board: m5stick-c
• Framework: arduino

• PCM5102 I²S DAC board
• Dual-button unit

• M5StickCPlus
• ESP32-audioI2S

• Button A: Change radio station / Resume playing (if paused)
• Button B: Switch device mode (internet radio, bluetooth A2DP sink)
• Button Pwr: Pause playing radio station
• Blue button (dual-button unit): Send current song info to IFTTT webhook

A comprehensive description of this project is available at hackster.io:

• Part I
• Part II
• Part III

See the LICENSE file for details.

Copyright 2022 © Ernst Sikora