Waveshare High Precision Capacitive Fingerprint Reader (B) - UART/USB Dual Ports
Waveshare High Precision Capacitive Fingerprint Reader (B) - UART/USB Dual Ports - Image 2
Waveshare High Precision Capacitive Fingerprint Reader (B) - UART/USB Dual Ports - Image 3
Waveshare High Precision Capacitive Fingerprint Reader (B) - UART/USB Dual Ports - Image 4
SKU: SENS-0568
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Waveshare High Precision Capacitive Fingerprint Reader (B) - UART/USB Dual Ports

₹3,439.00 (Inclusive of all taxes)
Out of Stock

The Waveshare Capacitive Fingerprint Reader (B) is a high-performance biometric module featuring a 208×288 pixel capacitive sensor, supporting UART and USB communication for seamless integration with Raspberry Pi, Arduino, STM32, and other embedded systems. It operates on a 3.3V to 5V supply and provides fast fingerprint enrollment, matching, and secure storage for up to 3000 templates.

Features

  • High-precision 208×288 pixel capacitive fingerprint sensor with 256-level greyscale.
  • Dual communication interfaces: UART serial and USB for flexible system integration.
  • High-performance Cortex processor with commercial-grade fingerprint algorithm for 0.5s matching time.
  • Secure 64-bit encryption and storage for up to 3000 fingerprint templates.
  • Low-power operation with dynamic current under 40mA and a 3.3-5V supply range.

Out of stock

Description

The Waveshare Capacitive Fingerprint Reader (B) utilizes an advanced semiconductor capacitive sensing array to capture high-resolution fingerprint images. The module integrates a dedicated Cortex-M core processor that handles all complex biometric processing, including image acquisition at 20fps, feature extraction, template generation, and secure matching, offloading this computational burden from the host microcontroller.

Designed for secondary development and system integration, the module communicates via simple command sets over either UART serial or USB, making it compatible with a wide range of development platforms and industrial controllers. Its sensitive capacitive touch detection requires only a light touch on the collection window, ensuring user convenience and long-term sensor durability.

Key Features

  • High-resolution capacitive sensor delivers 208 x 288 pixel images with 8-bit (256-level) greyscale for precise feature recognition.
  • Integrated commercial fingerprint algorithm ensures stable performance, fast identification (0.5s matching), and high security with 64-bit encryption.
  • Dual communication protocol support via UART serial and USB interfaces provides maximum integration flexibility.
  • Onboard Cortex processor handles all complex biometric processing (enrollment, matching, search), simplifying host system development.
  • Extensive fingerprint database management with a capacity of 3000 templates and the ability to input/output raw images and feature files.
  • Optimized for low-power embedded applications with a dynamic current under 40mA and a wide 3.3V to 5V operating voltage range.
  • Comprehensive development resources included, with documented command sets, tools, and examples for Raspberry Pi, Arduino, and STM32.
  • Sensitive touch detection eliminates the need for forceful pressing, enhancing user experience and module longevity.

Applications

  • Secure access control systems for doors, safes, and restricted areas.
  • Biometric time and attendance tracking in corporate or industrial environments.
  • User authentication in smart locks, IoT devices, and personal electronics.
  • Integration into point-of-sale (POS) systems or kiosks for secure user verification.
  • Embedded security for DIY projects, robotics, and maker platforms requiring identity management.

Technical Specifications

Model / NameCapacitive Fingerprint Reader (B)
Sensor TypeCapacitive Fingerprint Sensor
Image Resolution208 x 288 pixels
Greyscale256 levels (8-bit)
Image Collecting Rate20 fps
Fingerprint Capacity3000 templates
Matching Time0.5 seconds
Encryption64-bit
Communication InterfaceUART, USB
Operating Voltage3.3V - 5V DC
Dynamic Current< 40 mA
Sensor Dimensions (L x W)33.4 mm x 20.4 mm
Module Dimensions (L x W)34 mm x 28.5 mm
Shipping Weight0.022 kg

Frequently Asked Questions

What is the operating voltage range for this fingerprint module?

The module operates on a wide DC voltage range from 3.3V to 5V, making it directly compatible with common microcontroller logic levels from 3.3V systems like Raspberry Pi and ESP32 to classic 5V Arduino boards without requiring a level shifter.

How do I communicate with the module, and what interfaces are supported?

The module supports dual communication interfaces: UART serial (TTL logic levels) and USB. You can send simple ASCII command packets over either interface to control all functions, including enrollment, matching, and database management. Comprehensive command documentation and example code are provided.

What is the maximum number of fingerprints that can be stored?

The module's internal flash memory can store up to 3000 fingerprint templates. Each enrolled fingerprint generates a unique template file, and the module can perform 1:N matching searches against this entire database with a matching time of approximately 0.5 seconds.

Does the module require any external processing for fingerprint matching?

No, all biometric processing is handled internally by the module's integrated Cortex processor and commercial fingerprint algorithm. The host system only needs to send simple commands for enrollment, search, or management; the complex image processing, feature extraction, and template matching are performed on-board.

What development resources are available for integrating this sensor?

Waveshare provides extensive development resources, including a detailed command manual, PC configuration tools, and ready-to-use example code for popular platforms such as Raspberry Pi (Python/C), Arduino (C++), and STM32 (HAL libraries). This accelerates integration into your access control or authentication project.

Package Includes

  • 1 x Capacitive Fingerprint Reader (B) Module
  • 1 x PH2.0 5-Pin Wire

Additional Information

Weight 0.022 kg
Dimensions 3.4 × 2.85 cm

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