Arduino Library for Serial MP3 Player board (YX5300 chip)
You can buy the MP3 module on
Documentation and some Arduino code examples:
(Spanish) http://joanruedapauweb.com/blog/index.php/2017/02/07/arduino-serial-mp3-player-yx5300-es/
(Chinese)(Catalex_YX5300_Docs.zip files) http://pan.baidu.com/s/1hqilpB2