基于单片机的密码锁设计与实现I基于单片机的密码锁设计与实现摘 要如今科技越来越发达，电子技术的应用随处可见，因此电子产品也充斥着人们的生活中。对于如何实现家庭安全的问题，传统的机械锁因其结构简单而备受推崇，但问题是传统机械锁容易被撬开，也因此被人诟病；然而，电子锁就不会有这样的问题，首先电子锁不能被外力强行破坏，其次，需要输入密码来开门，而密码可以根据用户需要进行修改，降低了安全风险。本设计采用 STC89C52 作为密码锁监控装置的检测控制核心，有手动输入密码解锁，和指纹密码解锁两种解锁方式可供选择。系统采用 LCD12864 LCD 实时更新显示信息，并具有密码修改功能。如果在解锁或修改密码时发现按错了键，则可以退回或重新输入。如果您发现有人在监视或不想输入密码，您可以退出并重新输入，这将在一定程度上确保安全。测试结果表明，系统各项功能均达到了设计要求。关键词：指纹密码锁；STC89C52 单片机；矩阵键盘Design and Implementation of Password Lock Based on one Chip ComputerABSTRACTNowadays, technology is more and more developed, and the application of electronic technology can be seen everywhere.People's living standards gradually improve, so electronic products are also full of people's lives.For the problem of how to achieve family safety, the traditional mechanical lock is highly praised because of its simple structure, but the problem is that the traditional mechanical lock is easy to be pried off, so it is criticized; however, the electronic lock will not have such a problem, first of all, the electronic lock can not be forcibly damaged by external forces, second, it needs to enter a password to open the door, and the password can be modified according to the needs of users, and the password can be reduced Low safety risk. STC89C52 is used as the detection and control core of the password lock monitoring device in this design. There are two unlocking modes, manual input password unlocking and fingerprint password unloc...
