电子密码锁



1:用4×4矩阵键盘组成0－9数字键及确认键和删除键。

2:可以自行设定或删除8位密码，能够掉电保存。

3:用5位数码管组成显示电路提示信息，当输入密码时，只显示“8.”，当密码位数输入完毕按下确认键时，对输入的密码与设定的密码进行比较，若密码正确，则门开，此处用绿色led发光二极管亮一秒钟做为提示，若密码不正确，禁止按键输入3秒，同时用红色led发光二极管亮三秒钟做为提示；若在3秒之内仍有按键按下，则禁止按键输入3秒被重新禁止。

4:自由发挥其他功能.-Electronic locks

Design requirements:

1: 4 × 4 matrix keyboard consisting of 0-9 number keys and the Enter key and the Delete key.

2: You can set or remove eight passwords themselves, can power down to save.

3: 5 digital tube display circuit message, when you enter a password, only shows "8." When finished entering the password digit press the OK button to enter the password and set password for comparison, if the password is correct, then the door opened here with a green led light emitting diodes as a prompt for a second, if the password is incorrect, prohibit keystroke three seconds, while the red led light emitting diodes as a prompt for three seconds　If 3 seconds still within the button is pressed, the ban was re-key input 3 seconds prohibited.

4: free to play other functions.