36. MP3 Module(EF05038)

36.1. Introduction

It is able to play the music.


36.2. Characteristics

  • Designed with RJ11 ports and easy to plug.

36.3. Specification

Item Parameter
SKU EF05038
Connection RJ11
Connection Type Digital input
Working Voltage 3.3V
Core IC YX6300

36.4. Outlook and Dimension


36.5. Quick to Start

36.5.1. Materials Required and Connection Diagram

  • Connect the ASR module to the IIC port and the MP3 module to J1 port on Nezha expansion board.


36.6. MakeCode Programming

36.6.1. Step 1

Click “Advanced” in the drawer of the MakeCode to see more choices.


We need to add a package for programming. Click “Extensions” in the bottom of the drawer and search with “PlanetX” in the dialogue box to download it.


Note: If you met a tip indicating that the codebase will be deleted due to incompatibility, you may continue as the tips say or build a new project in the menu.

36.6.2. Step 2

36.6.3. Code as below


36.6.5. Result

  • The MP3 module is controlled by the ASR module.

36.6.6. Attention


36.7. Python Programming

36.7.1. Step 1

Download the package and unzip it: PlanetX_MicroPython

Go to Python editor


We need to add enum.py and mp3.py for programming. Click “Load/Save” and then click “Show Files (1)” to see more choices, click “Add file” to add enum.py and mp3.py from the unzipped package of PlanetX_MicroPython.

../_images/05001_081.png ../_images/05001_091.png ../_images/05034_10.png

36.7.2. Step 2

36.7.3. Reference

from microbit import *
from enum import *
from mp3 import *
player = MP3(J1)
while True:
    if button_a.is_pressed():
    elif button_b.is_pressed():

36.7.4. Result

  • Press button A on the micro:bit to start playing the music; press button B to stop playing the music.

36.8. Relevant File

36.9. Technique File