Fingerprint Scanner - TTL (GT-521F52)

Model : SEN-00051

Brand : Sparkfun,USA

Supplier : SparkFun, USA

TechshopBD, Bangladesh


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High-Accuracy Fingerprint Identifier.

Fingerprint scanners are awesome! Why use a key when you have one right at the tip of your finger? Unfortunately, they’re often unreliable or difficult to implement. Well not anymore! This great GT-521F52 fingerprint module from ADH-Tech communicates over TTL Serial so you can easily embed it into your next project. The module itself does all of the heavy lifting behind reading and identifying the fingerprints with an onboard optical sensor and 32-bit ARM Cortex M3 processor.

To get started, just register each fingerprint that you want to store by sending the corresponding command and pressing your finger against the reader three times. The fingerprint scanner can store different fingerprints, and the database of prints can even be downloaded from the unit and distributed to other modules. In addition to the fingerprint “template,” the analyzed version of the print, you can retrieve the image of a fingerprint and even pull raw images from the optical sensor!

This module is the upgraded version of the GT-521F32 and can store up to an astounding 3,000 different fingerprints! It is capable of 360° fingerprint recognition and download/upload templates using serial interface. Additionally, the GT-521Fxx series features a resolution of 450dpi, with a false acceptance rate of <0.001% and a false rejection rate of <0.1% while only needing <1.5 seconds to identify a unique fingerprint!

The module is small and easy to mount using four mounting holes surrounding the sensor. The onboard JST-SH connector has four signals: Vcc, GND, Tx and Rx. A compatible JST-SH pigtail can be found in the Hookup Accessories section below.

Note: Please be aware that even though this fingerprint scanner is equipped with the same connector we use on all of our Qwiic boards, it is NOT Qwiic or I2C compatible. That being said, all of our Qwiic cables, like our 100mm versionwill work for this board.


To know more about this product,please click this link.

  • Simple UART & USB communication protocol
  • Complies with USB 2.0 full-speed specification
  • Ultra-thin optical sensor
  • Resolution 450 dpi
  • Capable of 360° recognition
  • Storage for 3,000 unique fingerprints
  • Wake up on Finger Function
  • Works well with dry, moist or rough fingerprints
  • Anti-scratch with surface high hardness ≧ 5H
  • 1:1 verification, 1:N identification
  • High-accuracy and high-speed fingerprint identification technology
  • 4x mounting holes
  • 2x JST SH connectors


Login to post comments.
Ashikruet | Feb 13,2015 at 09:13 PM
can you give tutorial on this device to interface with atmega32 (not using Arduino)
Shanjedul | Oct 22,2015 at 12:54 PM
Kobe nagad pabo eita...?
anon | Nov 6,2015 at 12:41 PM
when it will be available?
anon | Nov 7,2015 at 08:00 PM
when it will be available?

Tanvir_ahmed_12014946 | Nov 17,2015 at 11:10 PM
how do u do that i have ordered GT-511C3 you .... u give me GT-511C1R!!!!!
A.R | Nov 18,2015 at 09:48 AM
As far as we know you already had a talk with our men and they told you what to do. Send it back to us with invoice as they told you. Sorry for this inconvenience.
Electrotanvir | May 9,2016 at 08:16 AM
when it will be available again? plz let me know the exact date...
FAHIM_REAZA | May 9,2016 at 11:37 AM
This product will be available within next 7 days. You can select "Notify Me W/A" button from the product link. When this product is available, this will automatically send an email and a SMS to your cell phone.
Musa.cse | Dec 14,2016 at 04:52 PM
ভাই আমি finger print scanner c3 এটা কিনেছি।।কিন্তু এটার সাথে যে কেবল টা কিনতে বলছে ওইটা ও কিনেছি।। কিন্ত কেবল দিয়ে finger print scanner এর সাথে কম্পিউটার এর কানেক্ট করতে পারছি না। কেবল এর না হল jumper 4 wire Assembly 8..এই কেবল দিয়ে কম্পিউটার এর সাথে কানেক্ট করতে পারছি না finger print saccner সাথে।।আমি ভিডিও টা ও দেখেছি
A.R | Dec 15,2016 at 08:34 PM
আপনাকে মেইলে উত্তর দেওয়া হয়েছে।

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