Fingerprint Door Unlock System Using Arduino

This simple fingerprint door unlock project using arduino can be very useful for door security forensics crime investigation personal identification attendance system and much more.

Fingerprint door unlock system using arduino.

It uses a keypad and fingerprint scanner to grant a user access by controlling an electric door s. Therefore i installed an optical fingerprint sensor on the outside of the door that can also toggle the locked versus unlocked position of the servo. 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. In this post we will interface a fingerprint sensor module with arduino and will build a fingerprint based biometric security system with door locking.

Therefore unauthorized access can be restricted by designing a lock that stores the fingerprints of one or more authorized users and unlock the system when a match is found. After downloading the sketch enrollto crowduino open the serial monitor and set the baud rate to 38400 you will see the outputs from the serial monitor to. Bio metrics authorization proves to be one of. A fingerprint lock would be help for me and there are plenty of these kinds of locks on the market as the picture above.

Fingerprint recognition is one of the most secure systems because a fingerprint of one person never matches with the others. But it is not only expensive and it is also very troublesome to install. First of all connect the fingerprint sensor to the arduino uno. I hope to find a cheap way and do need not change my locks.

Construction and testing of arduino fingerprint sensor lock the figure 3 and figure 4 reflect the actual size of single side pcb layout for the fingerprint door unlock system and its component layout respectively. To make this circuit more reliable and convenient the design of pcb has been done as an arduino shield. In the future there could be many more applications like fingerprint based driving licences bank accounts operation and so on. 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.

After learning arduino for 2 weeks i decided to diy a fingerprint lock with arduino. Now we have a functioning core of a system. In this video i show you how to use the fingerprint scanner for a door lock using arduino uno. Make sure you get a fingerprint sensor that works with the arduino through the serial communication.

Now i need to store my fingerprint to crowduino to let it open the door as i press the fingerprint. Open the arduino ide open the file sketchbook enroll you will see the enroll code that function as a fingerprint registration. To enhance the system i ve also installed a small oled display on the outside of the door to show the system s status i e.