基于AT89S52的32×32 LED点阵书写显示屏的设计

Design of 32×32 Dot-Matrix LED Writing Display Screen Based on Chip Microcomputer AT89S52

本设计为设计、制作一个基于32×32点阵LED模块的书写显示屏,该书写显示屏在光笔和控制器的作用下,能在屏上实现点亮、划亮、反显、整屏擦除、笔画擦除、连写多字、对象拖移等书写显示功能。文章给出了以AT89S52为核心的软硬件设计方案,并完成了系统中各模块的设计,使LED点阵从单一的输出显示设备,变成了可书写可显示的多功能设备。

This paper discusses the design of 32 × 32 Dot - Matrix LED writing display screen based on Chip Microcomputer AT89S52. Under the effect of a lightpen and the controller, this writing display screen can show lots of writing functions, such as LED dots, zoned light, anti - displaying the data, entire screen erasure, stroke erasure, multi characters written continuously, object dragging and so on.