异步LED点阵屏的控制

Control of asynchronous LED lattice Screen

文章讨论了当前几种流行的LED点阵屏屏体原理及输入电信号方法，着重介绍作者自行设计，开发的以8031单片机为显示控制的异步LED点阵屏的控制电路及软件编程方法。

This article discusses several current LED lattice screen body principle and inputting elec-trical signal method. Furthermore, it introduces how the authors design and exploit control circuit of asynchronous LED lattice screen by use of 8O31 monlithic comuter as display con-trol and software programming method. With the method, display screen size can be changed and when many displny screens are unitified into one, it is no necessary to add personal comput-er and LED video card.