Template: Capacitive Fingerprint Reader B Spec

Overview

The Capacitive Fingerprint Reader (B) is a fast and stable capacitive fingerprint module specialized for secondary development, suits integration applications.
By incorporating a high-performance Cortex core processor, high-security commercial fingerprint algorithm, and advanced semiconductor fingerprint sensor, this module is designed as an intelligent integration module with functions including fingerprint enrolling, image processing, the template generating and storing, fingerprint matching and searching, etc.

Features

• Easy to use by some simple commands, you don't have to know any fingerprint technology, or the module inter structure/calculation
• Commercial fingerprinting algorithm, stable performance, fast identification
• Sensitive detection, just touch the collecting window lightly, without pressing
• Allows to freely input/output fingerprint images, fingerprint feature file and other fingerprinting actions
• Dual communication, UART or USB

Specifications

PARAMETER	VALUE
Sensor	Semiconductor(capacitive)
Module dimension	34 x 28.5mm
Sensor dimension	33.4 x 20.4mm
Image	DPI508
Image resolution	208x288
Greyscale	256(8-bit)
Sensing area	14.6 x 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
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

Pinouts

• VCC: Power input (3.3V/5V)
• GND: Ground
• RX: UART data input
• TX: UART data output
• RST: Reset pin
  • High: Power on fingerprint module
  • Low: Power off fingerprint module