(1) CPU use of 51 series. (2) 4x4 matrix keyboard as an operational information input. (3) LCD1602 or six digital output as information. (Recommended LCD1602) (4) with a buzzer and light-emitting diode displays as false alarms and status.

Lock Key
........\Last Loaded 电子密码锁.DBK
........\电子密码锁.DSN
........\电子密码锁.PWI
........\程序
........\....\STARTUP.A51
........\....\STARTUP.LST
........\....\STARTUP.OBJ
........\....\w
........\....\w.LST
........\....\w.M51
........\....\w.OBJ
........\....\w.c
........\....\w.hex
........\....\w.lnp
........\....\w.plg
........\....\w.uvopt
........\....\w.uvproj
........\....\w_uvopt.bak
........\....\w_uvproj.bak

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