物联网开发笔记（77）- 使用Micropython开发ESP32开发板之使用MAX7219驱动控制8x8LED点阵模块（续）

魔都飘雪

已于 2023-02-11 16:48:49 修改

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CC 4.0 BY-SA版权

分类专栏：物联网开发文章标签：物联网

于 2023-02-11 15:30:01 首次发布

本文链接：https://blog.youkuaiyun.com/zhusongziye/article/details/128983159

一、目的

这一节我们继续学习如何使用我们的ESP32开发板控制带MAX7219驱动的8x8LED点阵模。我们使用库来显示，更加方便。

二、环境

ESP32 + MAX7219驱动的8x8LED点阵模块 + Thonny IDE + 几根杜邦线 + Win10

接线方法：

三、max7219 8*8点阵屏驱动：

raspberrypi-pico/max7219.py at main · stechiez/raspberrypi-pico · GitHub

max7219.py

"""
MicroPython max7219 cascadable 8x8 LED matrix driver
https://github.com/mcauser/micropython-max7219
MIT License
Copyright (c) 2017 Mike Causer
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
F