* 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' ...

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 ...

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 ...

In this project we are going to build a Dog Barking Security Alarm using Arduino Nano, PIR Motion Sensor, and Dog Barking Sound Module.