本科毕业设计(外文翻译）题 目 基于单片机的电子密码 锁的设计与制作 姓 名 杜 祥 专 业 电子科学与技术 学 号 202531107 指导老师 李大海 郑州科技学院电气工程学院 二○一四年五月THE DESIGN OF MATRIX KEYBOARD AND LCD DISPLAY BASED ON MCUAbstractThe development of microelectronics technology and industrial measure requirement bring a good opportunity for development and research system,which makes it a broad prospects。 The equipment has the advantages of small size， single power supply and a variety of output voltage leads it has a special module。 Through the analysis of the hardware structure， we can summarizes each module needs。For example，we often go through the keys to realize the control of the electronic device. Small to watch mobile phone, to the TV computer, to a variety of complex instruments, all need to realize various operations through the buttons. This design is an important part of step for the further research,using buttons to control the display ， include some modules like LCD 1602 liquid crystal display,4＊4 matrix keyboard，STC89C52single-chip microcomputer and other chips。Combine with the Proteus software，the simulation results are displayed on the LCD in 1602 type of data。 KEY WORDS： Single-chip; LCD 1602 liquid crystal display; 4*4 Matrix keyboard1 Introduction With the development of economy and the progress of science and technology, Microprocessors and peripheral chips have developed rapidly. The newest development of the integrated technology is the CPU chip and external。 Like the program memory, data memory, parallel, serial ， I/O timing / counter， interrupt controller and other control components are integrated in a chip—single chip 。 SCM has a manufacturing process CMOS ， The smalle...
