设计的是一个基于32*32模块的点阵LED模块的书写显示屏，采用的是二分算法，以80↑2单片机为主要的控制器件，通过光敏二极管的光笔读取LED点阵信号和键切换功能-Design is a module based on 32* 32 LED dot matrix display modules for writing, using the binary algorithm to 80 ↑ 2 MCU as the main control device through photosensitive diode LED light pen read dot matrix signals and to switch function