PIC单片机控制的跑马灯，初学者尤其是自学者建议从此开始了解单片的操作-pic controls several leds to turn on or turn off

本文采用PIC 16F877A单片机为主要核心控制元件，设计了一个32×32 LED点阵模块的书写显示屏。它主要由光笔模块和点阵显示模块组成，光笔模块利用光敏电阻的光电特性，实现微亮检测功能。-Control as the main core components, design a 3232 LED dot matrix display module writing this article using PIC 16F877A microcontroller. It mainly consis