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Design of fingerprint password lock based on 51 single chip microcomputer

Overview

To realize the software function of low-power fingerprint lock, the fingerprint information needs to be mixed into the HLK-FPM383C module in the form of number + fingerprint. Wake up the MCU by touching the fingerprint module. Then swipe the fingerprint, scan the fingerprint to obtain information, and search, compare and judge with the fingerprint information already programmed in the fingerprint module. Different values are returned for correct and incorrect. The MCU determines whether to wake up and drive the servo module based on this value. You can also enter the correct password through the keyboard module to make the MCU drive the servo. If you need to modify or enter the user password or fingerprint, you need to modify it through the administrator password or administrator fingerprint.

Design Files

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Update:2025-06-04 00:05:07

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