Based on AT89S52 single chip microcomputer infrared trick lock, the realization of infrared receiving password checking and LCD display. Through its simulation I2C bus and AT24C02 communications, achieved after power off password protection function and interface protection function. The system initial password 000000 combination lock, the user can customize the password. After the lock, the user can modify the original password. When the input three times wrong password will be issued a warning, and then be locked. The user can only be unlocked enabled super password

红外密码锁\delay.c
..........\delay.h
..........\delay.LST
..........\delay.OBJ
..........\E24c02.c
..........\E24c02.h
..........\E24c02.LST
..........\E24c02.OBJ
..........\hongwai.c
..........\hongwai.h
..........\hongwai.LST
..........\hongwai.OBJ
..........\LCD_display.c
..........\LCD_display.h
..........\LCD_display.LST
..........\LCD_display.OBJ
..........\main.c
..........\main.LST
..........\main.OBJ
..........\红外密码锁
..........\红外密码锁.c
..........\红外密码锁.hex
..........\红外密码锁.lnp
..........\红外密码锁.LST
..........\红外密码锁.M51
..........\红外密码锁.OBJ
..........\红外密码锁.plg
..........\红外密码锁.uvopt
..........\红外密码锁.uvproj
..........\红外密码锁_uvopt.bak
..........\红外密码锁_uvproj.bak
红外密码锁

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