Obviously, interfacing a micro SD card-based MP3 player module to an Arduino overcomes opens a new world of real digital audio. You can edit this basic idea to use in many projects that need ...

The build uses an Arduino, an MP3 chip, a SD card, LCD screen, amplifier, and two speakers. Everything is then packed into a small repurposed box with buttons and a volume knob. The end result is ...

The module relies on a PIC24F for input and control, while a VS1011 handles all of the MP3 decoding responsibilities. He says that the module would be great for voice-enabled vending machines ...