Fingerprint Scanner – 5V TTL (GT-511C1R) Interfacing With Arduino-

INTRODUCTION

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.

HARDWARE REQUIRED

Electronics:

PARTS

QUANTITIES

SUPPLIERS

FINGERPRINT SCANNER – GT-511C1R & JST CONNECTOR 1
    SPARKFUN
Serial LCD kit (w/ATmega328) 1       SPARKFUN
ATtiny85 1
BUZZER 1
SPEAKER WIRE 1
LED – BASIC RED 5MM 1
BREADBOARD 1
220 OHM RESISTOR 5
JUMPER WIRES STANDARD 7” M/M as per required
USB CABLE A TO B 1
TRANSISTOR NPN 3
9V BATTERY 1
9V BATTERY CONNECTOR 1
SPDT LIMITER SWITCH 2
COPPER TAPE as per required

ABOUT THE SENSOR

 

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Description:  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 liftings 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 analysed 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 most economical version of the GT-511 which has a decreased memory capacity (compared to the GT-511C3). The module can only store up to 20 different fingerprints but is capable of 360° fingerprint recognition and download and upload templates using the serial interface. If you are on a budget and need only a small number of fingerprints stored, this is the perfect option for you!

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. A compatible JST-SH pigtail can be found in the related items below. Demo software for PC is available in the documents below, simply connect the module to your computer using an FTDI Breakout and start the software to read fingerprints!

Features

  • 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
  • 360° Fingerprint Recognition

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Description: Calling this the “Serial Enabled LCD Kit” doesn’t do justice to how cool it actually is. After you’ve assembled this all-PTH kit, you’ll be left with a fully Arduino-compatible development board that just happens to have a white on black 16×2 display built-in.

Turns out the ATMega328 is pretty far over-spec for just controlling a parallel LCD so there’s a lot of horsepower left over to do whatever else needs to be done. We’ve broken out all of the unused GPIO pins to 0.1″ headers on one side of the board, making this more than just a great kit for beginner soldering but also an awesome development tool for experienced programmers.

In order to upload new code to the LCD Kit via bootloader you’ll need anFTDI Basic Breakout and have the Board setting in Arduino on ‘Arduino Duemilanove w/ ATmega328.’ The uC comes pre-programmed with the SerialLCD firmware on top of the bootloader, so if you just want to use it as a serial-enabled LCD, you won’t need to do any programming.

Documents:

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TUTORIAL ON SERIAL LCD (clickable image)

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DATASHEET AND INFORMATION ABOUT  SERIAL LCD PROGRAMMING AND SIMPLE ASCII CODES(clickable image

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DATASHEET OF FINGERPRINT SCANNER

PIN CONFIGURATION

PIN CONFIG OF fs

SOFTWARE REQUIRED

ARDUINO IDE (for windows)

SCHEMATICS

 

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YOU CAN ALSO ATTACH “UART-TX/RX OF FS TO ARDUINO’S RX/TX PIN” MODIFY THE PIN NUMBER IN THE PROGRAM

 

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ARDUINO SOURCE CODE(clickable image)

YOU CAN VISIT OUR WEBSITE   TECEX   IN ORDER TO FIND A COMPLETE FLEDGED PROJECT ON FINGER PRINT SCANNER DOOR UNLOCKING TECHNIQUE.

HAPPY INTERFACING:)

SHUBHAM GUPTA-TECEX

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