北京理工大学珠海学院 2020 届本科生毕业设计自动电子广告牌-硬件设计自动电子广告牌-硬件设计摘要此次课程设计自动电子广告牌的显示屏采用的是 LED 电子显示屏，由于一个汉字的显示至少需要的点阵规格是 16*16，所以这次课设我们采用了 4 块 8*8 的点阵组成一个16*16 的点阵屏来完成我们的显示功能。本文主要讲述了设计自动电子广告牌的硬件部分以及显示的控制方案，包括控制电路的设计，点阵方案，元器件的选择以及不同方案的优劣对比，对 LED 点阵屏显示的原理进行了阐述。在控制点阵系统显示的方面，我们采用 STC89C52 芯片对点阵进行控制[1]，使用 Keil C 软件将我们设计配合使用的软件代码进行编译和烧写，最后完成自动电子广告牌。在该广告牌的使用当中，我们可以通过指令简单地程序修改，然后修改我们要发布的内容，真正实现了信息发布的无纸化跟方便快捷的信息发布。关键词：LED 电子广告牌，LED 点阵，显示屏，单片机 C52北京理工大学珠海学院 2020 届本科生毕业设计Hardware design of automatic electronic billboardAbstractIn this course, the display screen of the automatic electronic billboard is led electronic display screen. Since the display of a Chinese character requires at least 16 * 16 lattice specifications, we used 4 8 * 8 lattice to form a 16 * 16 lattice screen to complete our display function. This paper mainly describes the hardware part of the design of the automatic electronic billboard and the control scheme of the display, including the design of the control circuit, the selection of the components and the advantages and disadvantages of different schemes, and expounds the principle of LED dot matrix display. In the aspect of controlling the display of dot matrix system, we use STC89C52 chip to control the dot matrix, use keil c software to compile and burn the software code we designed and used together, and finally complete the automatic electronic billboard. In the use of the billboard, we can simply modify the program throug...
