AT89C51 microprocessor used as a control components designed an electronic code lock. It has to set multiple passwords, password repeatedly rewritten and preserve the advantages of the need to overcome the general lock-key and easy to carry the loss, the confidentiality of the shortcomings of the poor, in hotels, office buildings, warehouses, safe and family universally applicable.

Packet : 77433632at89c51.rar filelist
一种基于单片机的电子密码锁的设计.pdf

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