利用8051单片机的控制程序结合LCD和键盘,设计一个LCD密码锁,可以用在需要密码输入的应用场合。
其基本功能为:
(1)使用LCD显示器来显示密码输入的相关信息;
(2)可以新设置4位数字(0~9)密码;
(3)内定另一组4位数字超级用户密码为‘1234’;
(4)密码输入正确则显示亮绿灯,密码输入错误则亮红灯。
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