Perancangan Prototipe Kunci Pintu Menggunakan Sensor Fingerprint dan Sistem Keypad dengan Peringatan Buzzer Berbasis Arduino Uno

Abstract

Efforts to design and manufacture a door lock prototype that can increase door security. So a door lock prototype was made using a fingerprint sensor and a keypad system with an Arduino Uno-based buzzer alert. The design of this tool utilizes the FPM 10A fingerprint sensor as a sensor to detect fingerprints and also uses other inputs, namely the keypad system which makes it easier for users if their hands are wet or experiencing other disturbances, they can use this keypad system to open the door, and the buzzer function in the prototype this is a warning system if the user enters the wrong keypad password then the buzzer will automatically sound according to the set time. The locking system in this prototype used a solenoid doorlock as the door lock, this component requires relay control and current voltage to be active and can be controlled in the arduino program. One has to put his finger on the fingerprint sensor if he wants to open the door and the door will open and the LCD screen will show "DOOR UNLOCKED" if the fingerprint that is pasted is the same as the fingerprint data added to the arduino program. If you use an unregistered fingerprint, the fingerprint sensor system will not respond because there is no fingerprint data added to the system in the Arduino program. The solenoid doorlock will close again in a 5 second delay. The results of the test show that the fpm 10a fingerprint sensor has a fairly good level of accuracy. The keypad system also has a fairly good accuracy in the process of entering passwords.