When [Neutrino-1] saw DFRobot’s DFPlayer module, he decided he wanted to make his own retro MP3 player. This tiny module comes packed with a ton of interesting capabilities such as EQ adjustment ...

As we mentioned before, Sharma developed a custom PCB that works with a Raspberry Pi Pico 2, buttons, an SSD1306 OLED display, the DF Mini Player MP3 module, and a handful of WS2812B LEDs.

Sadly his serial-controlled MP3 player module would only play audio data from the card and he couldn’t read a data file from it, so there seemed to be no easy way forward. His solution was ...