本次设计使用AT89C51实现一基于单片机的电子密码锁。本系统由单片机系统、矩阵键盘、LED显示和报警系统组成。系统能完成开锁、超次锁定、修改用户密码基本的密码锁的功能。除上述基本的密码锁功能外，还具有温度显示、时间显示等功能，依据实际的情况还可以添加遥控功能。本系统成本低廉，功能实用。-This design uses the AT89C51 to realize electronic password lock based on mcu. This system consists of SCM system, matrix keyboard, LED display and alarm system. The system can complete the lock, super lock, modify the basic user password lock function. In addition to the above basic password lock function, but also has temperature display, time display function, based on the actual situation can also add a remote control function. This system has the advantages of low cost, practical function.