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.
29.3. Specification¶
| Item | Parameter |
|---|---|
| SKU | EF05029 |
| Connection | RJ11 |
| Type of Connection | IIC |
| Working Voltage | 3.3V |
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:¶
Link¶
Link: https://makecode.microbit.org/_H1Dec3A9iDDM
You may also download it directly below:
---Result¶
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.
Step 2¶
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()
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.