Fingerprint Scanner -TTL (GT-511C3). Have you ever wanted to add fingerprint identification to your project? SparkFun offers Fingerprint Scanner -TTL (GT-511C3)models of fingerprint scanner from ADH Tech designed to do just that! Both models include an optical sensor for reading fingerprints and a processing IC with built-in fingerprint algorithms. Here you will find information about connecting to either fingerprint scanner and how to use it with Hawley’s FPS_GT511C3 library.
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