DESIGN OF A FINGER PRINT SCAN DOOR USING ARDUINO ATMEGA 328P AT KANO STATE POLYTECHNIC, NIGERIA

Abstract

This article includes a smart and affordable door lock enhanced with a fingerprint interface. For implementing this research, we will be using Arduino atmega328p, a fingerprint sensor, a motor driver, a motor, and other hardware devices. The fingerprint sensor will be integrated with the door panel, facing the outer side of the door, so that people can't have access to the controlling systems from outside. The latches will be fixed inside the door panel so that the thickness of the door can help the latch's strength. The fingerprint sensor will take the fingerprint of the user and forward it to the microcontroller to match its records. If the print matches with one of the fingerprints of the microcontroller's memory, the microcontroller will lock or unlock the latch, based on its current state. If the fingerprint is foreign to the microcontroller, the buzzer will buzz and the user will have to try again, if the wrong fingerprints are tried 5 times at most, the system will text the owner to alert him /her about a break-in. The system will also go into a secure state where it will continue to sound for alerting the neighbors that something is wrong. The system will reset once a known print is entered.