Enter the correct password, the lock open (green light), the password is incorrect, the lock remains closed (red light), and buzzer alarm. Password input error can be deleted. Four in one monitor two digital tube.

密码锁
......\STARTUP.A51
......\code
......\code.M51
......\code.hex
......\code.lnp
......\code.plg
......\code.uvopt
......\code.uvproj
......\code_uvopt.bak
......\code_uvproj.bak
......\keyboard.LST
......\keyboard.OBJ
......\keyboard.__i
......\keyboard.c
......\keyboard.h
......\main.LST
......\main.OBJ
......\main.c
......\main.h

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