【摘要】 本文介绍了一种易于扩展的通用ＬＥＤ显示模块，该模块以８０３１单片机为核心，通过串行口接收上位机的控制信息进行显示，不占用主系统的地址资源，可以方便地扩展，简化主系统的电路设计。更多还原

【Abstract】 In this paper, a general LED display unit controlled by8031 CPU is introduced, which receives data from other computers through its serial port to display. It can be used easily to extend the main circuit and simplify the design ofthesystem,while theaddress resource of the main circuit is not occupied.更多还原