This tutorial is for the GT-521Fxx models. If you are using any of the previous models (i.e. GT-511C1R and GT-511C3), please refer to the older Fingerprint Scanner Hookup Guide
Have you ever wanted to add fingerprint identification to your project? SparkFun offers a fingerprint scanner from ADH Tech designed to do just that! The GT-521F32 and GT-521F52 includes an optical sensor for reading fingerprints and a processing IC with built-in fingerprint algorithms. Here you will find information about connecting the fingerprint scanner and how to use it with Hawley's FPS_GT511C3 library.
Depending on how you are connecting to the fingerprint scanner, you may need to know the following concepts before working with one of these boards:
Asynchronous serial communication concepts: packets, signal levels, baud rates, UARTs and more!
Installing an Arduino Library
How do I install a custom Arduino library? It's easy! This tutorial will go over how to install an Arduino library using the Arduino Library Manager. For libraries not linked with the Arduino IDE, we will also go over manually installing an Arduino library.
Learn the difference between 3.3V and 5V devices and logic levels.
Serial Terminal Basics
This tutorial will show you how to communicate with your serial devices using a variety of terminal emulator applications.