Fingerprint Door Lock Using Arduino

Using pwm the master can send different voltages to the slave.

Fingerprint door lock using arduino.

After that turn on the bluetooth of your phone and then pair the bluetooth module with your phone. The project arduino fingerprint sensor lock is simply fabricated around arduino board. 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. How to make fingerprint door lock at home from this tutorial you can make awesome fingerprint sensored locking system for your door.

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. Therefore there is one master arduino which controls the servo oled and fingerprint sensor while a slave arduino controls the leds. I am using fingerprint module r307 and lcd together. 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.

Not only to ensure door security this project also make certain to assist in fields like forensics crime investigation personal identification attendance system and there is a lot more. Testing the fingerprint door lock using arduino project. Arduino fingerprint door lock with keypad and lcd. You need adafruit finge.

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. December 11 2018 alexa f. Arduino fingerprint sensor door lock. 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. 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.