Tutorial

1. Specify the audio to play

2. Specify the audio to loop

3. Modify the volume

Preparation

Hardware



1x Arduino UNO



1x IO Expansion Board



1x Passive Speaker (8Ω3W)



Dupont lines

Software



Arduino IDE,click to Download Arduino IDE from Arduino®.

Download Audio File

1.The module has built-in audio, if you need to add or replace audio, please use the micro usb to

connect to the computer for updating.

2. The way to update the audio is the same as USB flash driver.

3. This module supports MP3 and MAV format audio files.

4. The file should be stored in the "ZH" folder and it is recommended to represent files with numbers.

Such as 01.mp3,02.mp3, two letters or one Chinese character are also OK.