29. 8x16 Matrix Module

29.1. Introduction

8 x 16 Matrix module is a kind of 8 x 16 matrix screen that can display numbers, commonly used letters and symbols with scrolling-displaying function.


29.2. Characteristic

  • Designed in RJ11 connections, easy to plug.

29.3. Specification

Item Parameter
SKU EF05029
Connection RJ11
Type of Connection IIC
Working Voltage 3.3V

29.4. Outlook


29.5. Quick to Start

Materials Required and Diagram

  • Connect the 8x16 Matrix module to the IIC port in the Nezha expansion board as the picture shows.


29.6. MakeCode Programming

Step 1

Click “Advanced” in the MakeCode drawer 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.

Step 2

Code as below:



  • The expresssions display on the 8x16 matrix module.

29.7. Python Programming

Step 1

Download the package and unzip it: PlanetX_MicroPython

Go to Python editor


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

../_images/05001_081.png ../_images/05001_091.png ../_images/05029_10.png

Step 2


from microbit import *
from matrix import *
matrix = MATRIX()
x, y = 0, 0
while True:
    for y in range(8):
        for x in range(16):
            matrix.set_matrix_draw(x, y)


  • Each LED lights on from the sequence of left to right and up to down, then they light off after all the LEDs light up.

29.8. Relevant File

29.9. Technique File