36. MP3 Module

36.1. Introduction

It is able to play the music.

microbitplanetX\./images/05038_01.png

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 SNR3512M

36.4. Outlook and Dimension


microbitplanetX\./images/05038_02.png

36.5. Quick to Start


Materials Required and Connection Diagram


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

microbitplanetX\./images/05038_03.png

36.6. MakeCode Programming


Step 1

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

../_images/05001_04.png

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.

../_images/05001_05.png

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.

Step 2

Code as below

microbitplanetX\./images/05038_06.png

Result

  • The MP3 module is controlled by the ASR module.

Attention

microbitplanetX\./images/05038_07.png

36.7. Python Programming


Step 1

Download the package and unzip it: PlanetX_MicroPython

Go to Python editor

../_images/05001_072.png

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

Step 2

Reference

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

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