Fingerprint Scanner TTL GT511C3 – 3.3V to 6VFingerprint Scanner TTL GT511C3 – 3.3V to 6VFingerprint Scanner TTL GT511C3 – 3.3V to 6V

Fingerprint Scanner TTL GT511C3 – 3.3V to 6V


(as of 07/20/2017 at 16:26)

Product Description

Finger print scanners are incredible. Why utilize a secret when you have one right at the tip of your finger? Sadly, they’re generally undependable or difficult to implement. Well not anymore! We’ve found this great finger print module from ADH-Tech that communicates over TTL Serial so you can quickly embed it into your next task.

The module itself does all the heavy lifting behind reading and identifying the finger prints with an on-board optical sensing unit and 32-bit CPU. All you have to do is send it easy commands. To obtain started, just sign up each fingerprint that you want to save by sending out the matching command and pushing your finger against the reader 3 times. The finger print scanner can accumulate to 20 various finger prints and the database of prints can even be downloaded from the unit and distributed to other modules. In addition to the finger print “design template,” the analyzed version of the print, you can likewise retrieve the image of a finger print and even pull raw images from the optical sensing unit!

This is the updated variation of the GT-511 which has an increased memory capacity. The module can keep up to 200 various finger prints (that’s 10x more than the old version!) and is now capable of 360 ° acknowledgment.

The module is small and simple to mount utilizing two mounting tabs on the side of the sensing unit. The on-board JST-SH adapter has four signals: Vcc, GND, Tx, Rx. A suitable JST-SH pigtail can be found in the associated items listed below. Demo software application for PC is readily available in the files listed below, just link the module to your computer system using an FTDI Breakout and start the software to check out fingerprints!

Measurements: 37 x 17 x 9.5 mm

4-wire cable consisted of


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

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