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 06/28/2017 at 10:38)

Product Description

Fingerprint scanners are amazing. Why use a key when you have one right at the idea of your finger? Regrettably, they’re generally unreliable or challenging to execute. Well not anymore! We’ve discovered this terrific finger print module from ADH-Tech that interacts over TTL Serial so you can quickly embed it into your next project.

The module itself does all of the heavy lifting behind reading and recognizing the fingerprints with an on-board optical sensor and 32-bit CPU. All you need to do is send it simple commands. To obtain started, simply register each finger print that you desire to keep by sending out the corresponding command and pressing your finger versus the reader three times. The finger print scanner can accumulate to 20 various fingerprints and the database of prints can even be downloaded from the unit and distributed to other modules. Along with the finger print “design template,” the analyzed version of the print, you can likewise recover the image of a finger print as well as pull raw images from the optical sensing unit!

This is the upgraded variation of the GT-511 which has actually an increased memory capability. The module can save up to 200 different finger prints (that’s 10x more than the old variation!) and is now capable of 360 ° recognition.

The module is little and simple to install using two mounting tabs on the side of the sensing unit. The on-board JST-SH port has 4 signals: Vcc, GND, Tx, Rx. A suitable JST-SH pigtail can be found in the associated products listed below. Demo software application for PC is readily available in the files below, just connect the module to your computer using an FTDI Breakout and start the software to read fingerprints!

Dimensions: 37 x 17 x 9.5 mm

4-wire cable included


  • High-Speed, High-Accuracy Finger print Recognition using the SmackFinger 3.0 Algorithm
  • Download Finger print Images from the Device
  • Read and Write Finger print Templates and Databases
  • Easy UART procedure (Default 9600 baud)
  • Efficient in 1:1 Confirmation and 1: N Identification

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