摘 要：双色LED 点阵屏相对于单色LED 点阵屏来说色彩丰富很多，动态显示更加能吸引人眼球。本文深入研究了双色LED 点阵屏的工作原理，以STC12C5A60S2 单片机为控制核心，每种基色都用8 片74HC595 串接进行列控制，2 片74HC138组成4-16 线译码器扫描来控制，设计制作出了16*64 双色LED 点阵屏。双色LED 点阵屏能以三种不同的颜色滚动显示，设计的电路安全可靠，性价比高。
关键词：双色点阵屏；LED；STC12C5A60S2 单片机
中图分类号：TP273.5；TN873 文献标识码：A 文章编号：2096-4706（2019）09-0038-03
Design of Double-color LED Dot Matrix Screen Based on Single Chip Microcomputer
ZHANG Bo，XU Chuanxu，GAO Ju，ZHOU Chang
（College of Electronic Information Engineering，Suzhou Vocational University，Suzhou 215104，China）
Abstract：Compared with monochrome LED dot matrix screen，dual-color LED dot matrix screen has a lot of colors，and dynamic display is more eye-catching. In this paper，the working principle of dual-color LED dot matrix screen is deeply studied. With STC12C5A60S2 as the control core，each basic color is controlled by eight pieces of 74HC595 in series. Two pieces of 74HC138 form a 4-16 line decoder to scan and control. A 16*64 dual-color LED dot screen is designed and manufactured. Dual-color LED dot matrix screen can be displayed in three different colors. The designed circuit is safe and reliable with high cost performance.
Keywords：double-color dot matrix screen；LED；STC12C5A60S2 MCU
参考文献：
[1] 张波，丁乐. 基于单片机的LED 点阵屏的研究与设计 [J].中国市场，2017（15）：290-291.
[2] 温思歆，孙鹏，余晓铭，等. 基于MSP430F5529 的全彩LED 点阵屏设计 [J]. 信息通信，2015（7）：60-61.
[3] 刘成惠. 基于STC12C5A60S2 单片机的LED 点阵屏设计 [J]. 科技经济市场，2016（10）：35-37.
[4] 刘艳朋，郝英俊，万少松. 双色LED 点阵控制器的设计 [J].无线互联科技，2015（6）：84-85.
作者简介：张波（1979-），男，汉族，湖北枣阳人，副教授， 硕士，研究方向：电力电子技术、微处理器技术。