SKU: SENS-0579
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GT511C3 Optical Fingerprint Scanner Module with Cable

₹2,046.00 (Inclusive of all taxes)
Out of Stock

The GT511C3 is an optical fingerprint scanner module featuring a 450 DPI sensor and an integrated ARM Cortex-M3 processor for onboard template processing. It communicates via UART (9600 bps) and is compatible with 3.3V to 6V systems, making it suitable for integration into access control, security, and identification projects.

Features

  • High-resolution 450 DPI optical sensor with a 20 x 16 mm scanning area.
  • Integrated 32-bit ARM Cortex-M3 processor for onboard fingerprint template processing and matching.
  • UART serial interface with a default baud rate of 9600 bps for easy microcontroller integration.
  • Stores up to 200 fingerprint templates internally for 1:1 verification or 1:N identification.
  • Wide operating voltage range of 3.3V to 6V DC for flexible system compatibility.

Out of stock

Description

The GT511C3 Optical Fingerprint Scanner Module captures a visual image of a fingerprint using a digital camera sensor and processes it onboard with a dedicated fingerprint algorithm running on a low-power ARM Cortex-M3 microcontroller. This integrated processing converts the captured image into a compact digital template, enabling fast and secure biometric verification.

Designed for reliable performance, the module operates effectively across a temperature range of -20°C to +55°C and is engineered to work with various fingerprint conditions. Its serial UART interface allows for straightforward command-based control, making it a practical solution for embedding biometric security into electronic systems, from prototypes to finished products.

Key Features

  • High-precision optical imaging with 202 x 258 pixel resolution and 450 DPI clarity.
  • Onboard template generation and matching powered by an ARM Cortex-M3 core (Holtek HT32F2755).
  • Robust algorithm performance with a low False Acceptance Rate (FAR) of 0.00001%.
  • Compact and durable module design measuring 37 x 17 x 9.5 mm.
  • Supports one-touch enrollment and efficient 1:N identification across its 200-template database.
  • Wide operating voltage compatibility simplifies power supply design for 3.3V and 5V systems.

Applications

  • Embedded biometric access control systems for doors, safes, and lockers.
  • User authentication in time & attendance terminals and secure login devices.
  • Integration into IoT security projects and smart home automation panels.
  • Prototyping secure identification systems for educational and R&D purposes.
  • Portable and battery-powered devices requiring user verification.

Technical Specifications

Model NumberGT511C3
Sensor TypeOptical
ProcessorARM Cortex M3 Core (Holtek HT32F2755)
Operating Voltage3.3V to 6V DC
InterfaceUART (Default Baud Rate: 9600 bps)
Image Resolution450 DPI
Image Size202 x 258 Pixels
Effective Scanning Area20 x 16 mm
Fingerprint Storage Capacity200 Templates
Template Size496 Bytes + 2 Bytes
False Acceptance Rate (FAR)0.00001%
False Rejection Rate (FRR)< 0.1%
Operating Temperature-20°C to +55°C
Dimensions (L x W x H)37 x 17 x 9.5 mm
Weight6 g

Frequently Asked Questions

What is the operating voltage range for the GT511C3 module?

The GT511C3 module operates from 3.3V to 6V DC. This wide range allows it to be powered directly from common 3.3V or 5V microcontroller boards like Arduino, ESP32, or Raspberry Pi without requiring a level shifter.

How do I communicate with the GT511C3 fingerprint sensor?

Communication is via a simple UART (serial) interface using TX and RX pins. The default baud rate is 9600 bps. You send specific command packets to the module to enroll, verify, or delete fingerprints, and receive response packets with status and data.

How many fingerprints can the GT511C3 store, and what is a template?

The module can store up to 200 fingerprint templates internally. A template is a processed mathematical representation (496 bytes + 2 bytes) of the fingerprint image created by the onboard algorithm, not the full image itself, enabling fast and secure matching.

What is the difference between 1:1 verification and 1:N identification?

In 1:1 verification, you provide a specific ID number, and the module checks if the scanned fingerprint matches the template stored at that ID. In 1:N identification, you scan a fingerprint, and the module searches its entire database to find a match, returning the corresponding ID if found.

What are the physical dimensions of the GT511C3 module?

The module is compact, measuring 37 mm in length, 17 mm in width, and 9.5 mm in height. Its small form factor and low weight (6 grams) make it suitable for integration into space-constrained and portable electronic designs.

Package Includes

  • GT511C3 Optical Fingerprint Scanner Module
  • JST SH Connector Cable

Additional Information

Weight 0.006 kg
Dimensions 3.7 × 1.7 × 0.95 cm