Hardware design includes a number of aspects, first of all for all kinds of hardware facilities, the most fundamental content is the connection between the 51 microcontroller and related circuits, so that the microcontroller can obtain fingerprint information and send a control signal. Secondly, the design of fingerprint information acquisition system, the main design idea of the process is connected with the fingerprint recognition module, fingerprint recognition module and the relevant ports in the microcontroller, so that the microcontroller can identify the fingerprint information that has been converted into an electrical signal. Finally, the unlock circuit is designed, when the microcontroller finds that the fingerprint information is contained in the storage system, the unlock operation can be performed.
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