提出了一种基于单片机的智能键盘字符输入及LCD显示系统设计方案。详细阐述了系统硬件设计各模块接口电路和工作原理,介绍了点阵字符型液晶显示模块(LCD)和键盘接口的软件设计,给出相应的程序设计流程图。在Proteus环境下仿真实现了各种字符的输入、字母大小写切换和显示等功能,并成功运用于某门控系统中。
- Abstract:
- In this paper,the design of an intelligent character input keyboard and LCD display system is presented.The modules of the system hardware interface circuit and principle are described in detail.The character dot-matrix liquid crystal display(LCD)module and keyboard interface software design methods are introduced.The design flow chart of the corresponding procedures is given.All kinds of characters enter,switching and display case are realized in Protecus environment.The system has been successfully applied to a gated system.
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