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本文针对某项目中工厂的实际需求,研究基于AVR单片机的LED显示屏控制技术,提出了一种基于RS-485总线的双向主从分布式远程多机LED显示屏控制系统。本文研制的LED显示屏系统使只有上位机向下位机发送与显示内容相关信息的传统LED显示系统发展成为上位机和下位机可以进行双向通信的通信系统,弥补了国内市场的空白,拓展了LED的发展空间。
In this paper, a project of the actual needs of the plant, research based on the AVR microcontroller LED display control technology, based on the RS-485 bus bidirectional master-slave distributed remote multi-machine LED display control system. The LED display system developed in this paper has led to the development of a traditional LED display system that sends information related to the display content to the host computer and to the lower computer to make a bi-directional communication system that complements the gap in the domestic market and expands the LED The development of space.