* Monitor in the Arduino IDE). If it sees 1-9 it will try to play an MP3 file * named track00x.mp3 where x is a number from 1 to 9. For eaxmple, pressing * 2 will play 'track002.mp3'. A lowe case 's' ...

The module can be used as a standalone module with attached battery, speaker and push buttons or used in combination with an Arduino or any other microcontroller with serial communication (UART) ...

A tiny MP3 module that seemed determined to test the limits of my patience. Over the next three months, I found myself wrestling with everything from basic circuits to the finicky quirks of this ...

A 1kΩ resistor is put in between the Arduino digital pin 9 and MP3 module's RX to drop the voltage down from the Arduino’s 5V. Programming Arduino Nano for Decorative Christmas Tree Once we are ready ...