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、报警、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，还具有掉电存储、声光提示等功能。-By the single-chip system, matrix keyboard, LED display and alarm system. System can complete the lock, super lock, alarm, modify the user password basic password lock function. In addition to the above basic password lock function, but also has a power down storage, sound and light tips and other functions.