High Precision Capacitive Fingerprint Reader (B)

WaveshareSKU: WAV-20679
Sale price £50.42
incl. VAT
excl. VAT
Only 13 units left

The Capacitive Fingerprint Reader (B) is a fast and stable capacitive fingerprint module designed for secondary development, ideal for integrating into your own application with the dual-port (UART or USB-C) functionality.

By incorporating a high-performance Cortex core processor, high-security commercial fingerprint algorithm and an advanced semiconductor fingerprint sensor, this module is designed as an intelligent integration module with functions including fingerprint enrolling, image processing, template generating and storing and fingerprint matching/searching.

Online development resources provide examples for the Raspberry Pi and Arduino alongside other useful information.


  • Easy to use with simple commands - no requirement for knowledge of fingerprint technology or module structure/calculation
  • Commercial fingerprinting algorithm, stable performance, fast identification
  • Sensitive detection, just touch the collecting window lightly
  • Input/output fingerprint images, fingerprint feature file and other fingerprinting actions
  • Dual communication - UART or USB-C
  • Online development resources (related command documents, tools, and examples for Raspberry Pi/Arduino)


Sensor Semiconductor (capacitive)
Module dimension 34 × 28.5mm
Sensor dimension 33.4 × 20.4mm
Image DPI 508
Image resolution 208 × 288
Greyscale 256 (8-bit)
Sensing area 14.6 × 10.6mm
Fingerprint capacity 3000
Security level 1-5 configurable, 3 by default
The higher value, the lower FAR (False Acceptance Rate), yet the higher FRR (False Rejection Rate)
Encryption key 64-bit encryption
Image collecting rate 20fps
Matching time 0.5s
Dynamic current <40mA
Operating voltage 3.3-5V
Communication port UART or USB-C
ESD SD IEC 61000-4-2 LEVEL 4 positive/negative 15KV air discharge
Baudrate configurable: 9600, 19200, 38400, 57600, 115200, 230400, 460800, 921600bps
115200bps by default


Package Contents

  • 1x Capacitive Fingerprint Reader (B)
  • 1x PH2.0 5-pin wire

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