Fingerprint Door Lock Using Arduino

Arduino fingerprint sensor door lock.

Fingerprint door lock using arduino.

Introductionthe fingerprint door lock as the name suggests is an electronic door lock that can be installed on almost any access point in your house. December 11 2018 alexa f. I am using fingerprint module r307 and lcd together. Testing the fingerprint door lock using arduino project.

The default pins for serial communication on the arduino uno are pin 0 rxd and pin 1 txd of the board but we are going to use other pins for serial communication. They are connected through a single wire that goes from a pwm pulse width modulation enabled pin on the master to an analog pin on the slave. Conclusion in this tutorial post we learned how to set up a fingerprint sensor and how to use it with our arduino you can use this knowledge to control a. Using pwm the master can send different voltages to the slave.

It uses a keypad and fingerprint scanner to grant a user access by controlling an electric door s. How to make fingerprint door lock at home from this tutorial you can make awesome fingerprint sensored locking system for your door. After installing the apk and connecting the hardware as per the circuit diagram connect the arduino to the laptop and upload the code remove the tx rx pins before uploading the code. Make sure you get a fingerprint sensor that works with the arduino through the serial communication.

The project arduino fingerprint sensor lock is simply fabricated around arduino board. You need adafruit finge. Therefore there is one master arduino which controls the servo oled and fingerprint sensor while a slave arduino controls the leds. You can add a solenoid instead of this led and make a fingerprint door lock which could be a brief tutorial for the future but for this tutorial led indication is our eureka.

After that turn on the bluetooth of your phone and then pair the bluetooth module with your phone. In that i am using 2 3 digital pins of arduino for data transfer to the fingerprint i tried other pin configurations for this but it didn t work but as i am connecting lcd it also requires same 2 3 digital pins of arduino and it is not possible for me to use 2 and 3 pins of arduino for both lcd and fingerprint sensor for data transfer.