29. 8x16 Matrix Module(EF05029)¶

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.

../_images/05029_01.png

29.2. Products Link¶

ELECFREAKS PlanetX 8x16 Matrix Sensor

29.3. Characteristic¶

Designed in RJ11 connections, easy to plug.

29.4. Specification¶

29.5. Outlook¶

../_images/05029_02.png

29.6. Quick to Start¶

29.6.1. Materials Required and Diagram¶

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

../_images/05029_03.png

29.7. MakeCode Programming¶

29.7.1. Step 1¶

Click “Advanced” in the MakeCode drawer 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.

29.7.2. Step 2¶

29.7.3. Code as below:¶

../_images/05029_06.png

29.7.4. Link¶

Link: https://makecode.microbit.org/_H1Dec3A9iDDM

You may also download it directly below:

29.7.5. Result¶

The expresssions display on the 8x16 matrix module.

29.8. Python Programming¶

29.8.1. Step 1¶

Download the package and unzip it: PlanetX_MicroPython

Go to Python editor

../_images/05001_072.png

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

29.8.2. Step 2¶

29.8.3. Reference¶

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)
    matrix.set_matrix_clear()

29.8.4. Result¶

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.