Fingerprint Scanner - TTL (GT-511C3)

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 usually unreliable or difficult to implement. Well not anymore! We've found this great fingerprint module from ADH-Tech that 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 on-board optical sensor and 32-bit CPU. All you need to do is send it simple commands. 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. As well as the fingerprint "template," the analyzed version of the print, you can also retrieve the image of a fingerprint and even pull raw images from the optical sensor!

This is the updated version of the GT-511 which has an increased memory capacity. The module can store up to 200 different fingerprints (that's 10x more than the old version!) and is now capable of 360° recognition.

The module is small and easy to mount using two mounting tabs on the side of the sensor. The on-board JST-SH connector has four signals: Vcc, GND, Tx, Rx.

Note: The module does not come with a cable. You will need this one.

Dimensions: 37 x 17 x 9.5 mm


  • High-Speed, High-Accuracy Fingerprint Identification using the SmackFinger 3.0 Algorithm
  • Download Fingerprint Images from the Device
  • Read and Write Fingerprint Templates and Databases
  • Simple UART protocol (Default 9600 baud)
  • Capable of 1:1 Verification and 1:N Identification

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

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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