The system is made up of single-chip microcomputer, display and other parts. It displays relevant information of the password lock using the display. When the system is powered up, it acquiers two groups of digital Ciphers (4 bits or more than 4 bits), sets other other passwords, and the password is input correctly, then it simulates the opening of the password lock.

Filename	Size	Update
新建文本文档.txt	0	2018-03-04
7.rar	9043	2018-03-04

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