electronic password lock design based on preset passwords, use two keys to achieve the importation of password function, When the correct password, it locks open, if the three input the password is not correct, it lock button three seconds, also found sirens and no keys pressed until the three species only after open lock function keys; Otherwise, in three seconds still pressing buttons on the lock button again three seconds and the police.

Packet : 77433611dianzimimasuo.rar filelist
新建 Microsoft Word 文档.doc

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