SKU: 69369750537

SparkFun Fingerprint Scanner - TTL (GT-521F52)

Sale price$2517.75 Regular price$2797.50
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Ships within 48 hours · Estimated delivery Aug 28 - Sep 2

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Description

SparkFun Fingerprint Scanner - TTL (GT-521F52)Fingerprint scanners are awesome! Why use a key when you have one right at the tip of your finger? Unfortunately, theyre 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

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 version, will work for this board.

Get Started With the Fingerprint Scanner (GT-521Fxx) Guide

Features:

  • 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

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Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 69369750537

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Luke
New York, US
★★★★★ 4
Replacement for those infamous fastener rivet clips.
Size: 200 PCS
Any one who rides or owns a ATV or UTV knows exactly how temperamental this clips can be, they work great when new but as soon as you take them out they never fit right again. This is why I purchased this kit and the clips are exactly the same as Polaris OEM clips. These clips fit into a 8.5mm or 0.3” hole, I’m not sure what other ATV/UTV these will work on but verify your hole size before purchasing. Kit includes 150 fastener rivet clips and 1 remover tool which is made of decent quality and will get the job done until you can purchaser a better removal tool.
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Reviewed in the United States on February 19, 2023
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Verified Purchase
Tom J St Marie
Birmingham, US
★★★★★ 5
Perfect
Size: 200 PCS
Worked great on a 2024 Honda Rancher 420.
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Reviewed in the United States on April 26, 2026
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Charles Jenkins
Boise, US
★★★★★ 5
They do exactly what they are needed for
Size: 200 PCS
Great for whatever and reasonable price
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Reviewed in the United States on April 12, 2026
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Amazon Customer
West Palm Beach, US
★★★★★ 5
Polaris Ranger Fasteners
Size: 200 PCS
Why try and use old once removed fasteners when you can purchase new for a great price Perfect fit for a Polaris Ranger
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Reviewed in the United States on April 29, 2026
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gregory nance
Draper, US
★★★★★ 3
plastic quality
Size: 200 PCS
plastic rivets size was ok . seams like the plastic used was to hard and several broke when installing them
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Reviewed in the United States on May 19, 2025

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