Electronic combination lock composed with 4 x 4 0-9 keys and confirmation button. Composed with eight digital tube tooltip show circuit, when the input password, only show "8." when the password digits input finished press ok button, the input password with setting the password, if correct password comparison, the door open, here use LED leds light a second as clew, also issued "mistakes" sound If the password is not correct, banned keystroke 3 seconds, also issued "di, di" alarm sound If in 3 seconds still have keys pressed, bans keystroke 3 seconds to be banned. (this sentence in the following program need to press ENTER key party effective) (1). 4 x 4 determinant keyboard identification technology: on this front has been discussed, content of repeated here no longer. (2). Eight digital display, initialization, shows "P", then input maximum 6 digits, when a password finished, click ok button, password, and then puts forward corresponding compared the information. In the input pa

电子密码锁
..........\33.4×4键盘及8位数码管显示构成的电子密码锁.doc
..........\Keil-C
..........\......\lock
..........\......\lock.c
..........\......\lock.hex
..........\......\lock.lnp
..........\......\lock.LST
..........\......\lock.M51
..........\......\lock.OBJ
..........\......\lock.Opt
..........\......\lock.plg
..........\......\lock.Uv2
..........\......\lock_Opt.Bak
..........\......\lock_Uv2.Bak
..........\......\STARTUP.A51
..........\......\STARTUP.LST
..........\......\STARTUP.OBJ
..........\密码.DSN
..........\密码12345.txt

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