#ESP8266 Audio Player

Based on:

• esp-open-rtos
• mad library from https://github.com/espressif/ESP8266_MP3_DECODER/
• https://kissfft.sourceforge.net/
• Read mp3 file from spiffs (internal ESP8266 storage)

https://youtu.be/8Z-Cp0hWlhs

• Put mp3 mono file happy-new-year.mp3 to the folder files (file size limit is 2Mbytes)

export OPEN_RTOS_PATH=/path/to/esp-open-rtos
make && make flash

• I2S connection (PCM5102 or any I2S DAC)

ESP pin   - I2S signal
----------------------
GPIO2/TX1   - LRCK
GPIO3/RX0   - DATA
GPIO15      - BCLK

• OLED connection (SH1106 or SSD1306) - I2C

ESP pin     - OLED
----------------------
GPIO4       - SDA
GPIO5       - SCL

• Hardware for test: iot-wifi-uno

• MIT license for this application