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. Features * 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) Specifications 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 Resources * Product Wiki (see Wiki tabs for dev board guides) Package Contents * 1x Capacitive Fingerprint Reader (B) * 1x PH2.0 5-pin wire https://elecena.pl/product/22725105/high-precision-capacitive-fingerprint-reader-b 2023-03-07 https://elecena.pl/product/22725105/high-precision-capacitive-fingerprint-reader-b 2023-12-27 https://elecena.pl/product/22725105/high-precision-capacitive-fingerprint-reader-b 2024-04-30 https://elecena.pl/product/22725105/high-precision-capacitive-fingerprint-reader-b 2024-09-19 https://elecena.pl/product/22725105/high-precision-capacitive-fingerprint-reader-b 2024-11-29 https://elecena.pl/product/22725105/high-precision-capacitive-fingerprint-reader-b 2024-11-30 https://elecena.pl/product/22725105/high-precision-capacitive-fingerprint-reader-b 2025-08-05 https://elecena.pl/product/22725105/high-precision-capacitive-fingerprint-reader-b 2025-11-28 https://elecena.pl/product/22725105/high-precision-capacitive-fingerprint-reader-b 2025-11-29