Description: 4* 4 keyboard with the composition of the number keys 0-9 and confirm key. With 8-bit digital tube display circuit message, when the input password, only shows " 8." When the password confirmed by the median enter key when finished, the corresponding password and set password for comparison, if the password is correct, then the door open relay here a " ding dong" sound if the password is not correct to prohibit the importation of key three seconds, at the same time issued a " ticking" sound alarm if there are still three seconds press the button, the button to prohibit the importation of three seconds was to prohibit the
File list (Check if you may need any files):
电子密码锁设计
..............\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
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