[*SparkFun WT2003S MP3 Decoder (SPX-14810)*](https ...

const int DEBOUNCE_DELAY = 100; // Debounce delay for buttons - can be adjusted if button reacts to fast/slow const int DEBOUNCE_DELAY_V = 30; // Debounce delay for potmeter - can be adjusted if ...

Here’s an inexpensive Arduino-based MP3 Jukebox (translated) which [Jose Daniel Herrera] put together. He spent some time making sure that it looked great sitting on a shelf with his other audio ...

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 a ...