Electronic code lock: can be set from 1-8 in the password from the keyboard to type the correct password to change your password or unlock. Enter the wrong password three times to keep the alarm circuit. Lock signal output by said light-emitting diodes. 1. Can set a password, power-down the password can be saved 2. Button is pressed to issue what really tone 3. Need to check before setting a new password the old password

Proteus设计的51单片机电子密码锁\Last Loaded MMS.DBK
...............................\mms
...............................\mms.asm
...............................\MMS.DO
...............................\MMS.DSN
...............................\MMS.EDF
...............................\mms.hex
...............................\mms.LST
...............................\mms.M51
...............................\mms.OBJ
...............................\mms.Opt
...............................\mms.plg
...............................\MMS.PWI
...............................\MMS.SDF
...............................\mms.Uv2
...............................\mms_Opt.Bak
...............................\mms_Uv2.Bak
...............................\~quit
Proteus设计的51单片机电子密码锁

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