SKU: SENS-0547
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Grow R303 Fingerprint Module - USB 2.0 & UART Interface

₹3,119.00 (Inclusive of all taxes)
Out of Stock

The Grow R303 Fingerprint Module is a high-resolution biometric sensor offering USB 2.0 and 3.3V TTL UART interfaces for integration into access control systems, attendance terminals, and embedded security projects. It features a 508 DPI optical sensor with a storage capacity for up to 1000 fingerprints.

Features

  • 508 DPI optical fingerprint sensor with 208 x 288 pixel array
  • Dual interface: USB 2.0 and 3.3V TTL UART for flexible connectivity
  • Storage capacity for up to 1000 fingerprint templates
  • Low power operation with a working current under 55mA
  • Compact module dimensions of 20.4 x 33.4 mm

Out of stock

Description

The Grow R303 Fingerprint Module integrates a high-resolution optical sensor and a dedicated processing chip for reliable biometric authentication. It captures fingerprint images with a resolution of 508 DPI across an effective acquisition area of 11 x 15 mm, ensuring detailed feature extraction for accurate matching.

Designed for low-power embedded applications, the module operates from a 4.2V to 6.0V DC supply and communicates via USB 2.0 or a 3.3V logic-level UART serial interface, making it compatible with a wide range of microcontrollers (Arduino, ESP32, STM32) and single-board computers. Its onboard algorithm chip handles image processing and template matching, offloading computational tasks from the host system.

Key Features

  • High-precision 508 DPI optical fingerprint imaging sensor
  • Integrated fingerprint algorithm chip for onboard processing and matching
  • Robust performance adapted to various finger conditions, including dry, wet, or aged skin
  • Dual communication interfaces: USB 2.0 for direct PC connection and 3.3V TTL UART for microcontroller integration
  • High-capacity storage for up to 1000 fingerprint templates
  • Low power consumption with a typical working current below 55mA
  • Compact and durable module construction suitable for integration into finished products

Applications

  • Standalone and networked electronic door lock and access control systems
  • Employee time and attendance tracking terminals for offices and factories
  • Biometric security for safes, lockers, and personal storage devices
  • Embedded authentication in IoT devices, laptops, and point-of-sale systems
  • Educational and prototyping projects for biometrics and security

Technical Specifications

ModelR303 Fingerprint Module
BrandGrow
InterfaceUSB 2.0, UART (3.3V TTL logic)
Supply VoltageDC 4.2 - 6.0V
Working Current< 55 mA
Sensor Resolution508 DPI
Image Pixels208 x 288
Acquisition Window Area11 x 15 mm
Fingerprint Storage Capacity1000 templates
Module Dimensions20.4 x 33.4 mm (approx.)

Frequently Asked Questions

What are the power requirements for the R303 Fingerprint Module?

The module requires a DC supply voltage between 4.2V and 6.0V. Its typical working current is under 55mA, making it suitable for battery-powered or low-power embedded applications.

How do I communicate with this fingerprint module?

The R303 offers two interfaces: a standard USB 2.0 port for direct connection to a PC or host computer, and a 3.3V TTL-level UART serial interface (TX, RX) for integration with microcontrollers like Arduino, ESP32, or STM32. You must use a logic-level converter if your MCU operates at 5V.

What is the fingerprint storage capacity?

This module can store up to 1000 individual fingerprint templates in its onboard memory. This capacity is suitable for small to medium-sized access control systems or attendance tracking applications.

What is the resolution and sensing area of the optical sensor?

The optical sensor has a resolution of 508 dots per inch (DPI) with an imaging array of 208 x 288 pixels. The effective fingerprint acquisition window is 11 mm by 15 mm, which is sufficient for capturing a full fingerprint image for accurate matching.

Package Includes

  • 1 x R303 Fingerprint Module
  • 1 x 15cm 4-Pin Serial Cable

Additional Information

Weight 0.2 kg
Dimensions 10 × 8 × 3 cm