I this tutorial we will learn how to play audio files with the Arduino. For this we will use speaker. Also we will use SD card module for keep the audio files. After this tutorial you can make mini mp3 player using the Arduino.
About the SD Card Module Adapter:
The module (MicroSD Card Adapter) is a Micro SD card reader module, and the SPI interface via the file system driver, microcontroller system to complete the MicroSD card read and write files.