单片机电子密码锁(LCD1602) 掉电记忆仿真和程序源文件

上传者: 42591979 | 上传时间: 2022-04-30 16:00:15 | 文件大小: 289KB | 文件类型: ZIP
说明: 电子密码锁默认密码:12345678. 1.输入8位密码,点击开锁按键,完成开锁,LED 点亮,蜂鸣器发出"嘀"。 2.开锁完成后,点击上锁,LED熄灭,完成上锁。 3.更改密码:先开锁,再输入新密码,点击更改 密码完成更改密码。 3.连续输入错误密码3次,蜂鸣器报警发出"嘀嘀 嘀",同时键盘锁定,禁止输入。LCD屏幕进行倒 计时,1分钟后,键盘解锁,可以再次输入密码。 4.长按还原密码按键3s以上,还原密码。 5.密码存放在24c02中,实现掉电记忆。

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