基于C语言STC89C52单片机电子密码锁设计

课程设计

基于C语言STC89C52单片机电子密码锁的设计

摘要：本设计阐述通过Proteus软件成功仿真的电子密码锁的实现过程，

选用STC89C52单片机为核心的系统来实现按键输入、开锁和密码识别。采用具备I2C总线接口的E2PROM芯片来完成密码的存储，通过1602A液晶显示器提示程序运行状态和使用步骤，利用蜂鸣器模拟报警，发光二极管模拟锁的开关。该系统用C语言编写程序，与汇编语言相比具有更好的移植性和可读性，便于修改和增减功能。

关键词：Proteus；密码锁；单片机；C语言

Design of Electronic Code Lock Using STC89C52 MCU Based

on C Language

Abstract: The paper introduces the implementation of the electronic code lock which was successfully simulated by Proteus. It uses STC89C52 single-chip microcomputer to achieve key input, the unlocking and

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identification of the code. It adopts IC bus based EPROM chip to complete the code's storage, using LCD 1602A to prompt the program's running state and working procedures, adopting buzzer to imitate the alarm and LED to imitate the switch. It is convenient to modify and add functicccon by using C language program, which is more transplantable and reliable compared to assembly language.

Keywords: Proteus; code lock; single-chip microcomputer; C language