Introduction: Fingerprint Sensor With Arduino

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Hello, In this article we will see how to use fingerprint sensor with Arduino. With Fingerprint sensor you can add security and lock to your home, office, garage and many more. Not only about secuity, you can add use this module where you want in time and out time in the access restricted area.
We will be using GT511C3 Fingerprint module interface with arduino.

Step 1: Required Components

You will need Arduino Board. You can select any of the following,

  1. Arduino Nano - https://www.banggood.in/custlink/KKGygoIaOF
  2. Arduino Uno - https://www.banggood.in/custlink/GvmyBlZaOo
  3. Arduino Pro Mini - https://www.banggood.in/custlink/vvGy0Lijj0
  4. Arduino Mega2560 - https://www.banggood.in/custlink/vKGY0lioLA

Again you will need GT511C3 module.


Step 2: Pinout of Fingerprint Sensor

Step 3: Interface

We will interface GT511C3 module with Arduino with UART interface.

Here is connection of the Module

Step 4: Tutorial of the Project

Step 5: Example Code

Code on github:
https://github.com/sparkfun/Fingerprint_Scanner-TTL