基于 51 单片机的点阵式 LED 电子显示屏Lattice LED electronic display screen based on 51 single chip microcomputer 内容摘要随着高科技技术的发展和 LED 数码管的诞生，巨大型屏幕且画面清晰的 LED 电子广告屏幕在日常生活中常常出现。与传统的单色霓虹灯相比较，它拥有更好可编辑更新性，也满足良好的经济市场条件。为了便于单芯片微型计算机控制 LED 显示系统，本次设计主要应用STC89C51RC 单芯片控制了网格对数字、文字的显示。使用 16*16 点阵式 LED 图像显示屏，此次设计要求 LED 显示器各点的亮度一样，可显示的文字和数字就足够了，并显示的文字和数字足够稳定，设计每个文字的显示完整和滚动显示。所选的 STC89C51RC 单芯片具有低成本的特性，可简化整个系统的维护和检查。此外，该系统只需占用一个处理器上的少量 I/O 端口和内存即可扩展系统的功能。关键词：STC89C51RC；LED 点阵显示；串行通信AbstractWith the development of high technology and the birth of LED digital tube, LED electronic advertising screen with large screen and clear picture often appears in daily life. Compared with the traditional monochromatic neon lights, it has better editable updating and meets good economic and market conditions. In order to facilitate the single chip microcomputer to control the LED display system, this design mainly uses the STC89C51RC single chip to control the grid display of numbers and characters. Using a 16*16 dot matrix LED image display screen, this design requires that the brightness of each point of the LED display is the same, the text and numbers that can be displayed are enough, and the text and numbers are stable enough to design a complete and scrolling display of each text. The selected STC89C51RC single chip has the characteristic of low cost, which can simplify the maintenance and inspection of the whole system. In addition, the system can expand the function of the system by occupying only a small amount...
