Round-Shaped All-In-One Capacitive Fingerprint Sensor (D), Cortex Processor, 360° Verification

SKU: 20903
Part Number: UART Fingerprint Sensor (D)
Brand: Waveshare


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Round-Shaped All-In-One Capacitive Fingerprint Sensor (D), Cortex processor, 360° verification
UART Fingerprint Sensor (D)

Capacitive 360° Verification

nail plate-sized, UART commands operation

Product Features

Based on a high performance Cortex processor, combined with high-security commercial fingerprinting algorithm, the UART Fingerprint Sensor (D) features functionalities like fingerprint enrolling, image acquisition, feature finding, template generating and storing, fingerprint matching, and so on. Without any knowledge about the complicate fingerprinting algorithm, all you need to do is just sending some UART commands, to quickly integrate it into fingerprint verification applications which require small size and high precision.

  • Easy to use by some simple commands, you don't have to know any fingerprint technology, or the module inter structure
  • Commercial fingerprinting algorithm, supports functions like fingerprint enrolling, fingerprint matching, fingerprint image acquisition, and fingerprint feature uploading, stable performance, fast identification
  • Capacitive sensitive detection, just touch the collecting window lightly for fast verification
  • Highly integrated hardware, processor and sensor in one small chip, suitable for small size applications
  • Narrow stainless steel rim, supports 360° omni-directional verification
  • Embedded human sensor, the processor will enter sleep automatically, and wake up when touching, lower power consumption
  • Onboard UART connector, easy to connect with hardware platforms like STM32 and Raspberry Pi
parameter value
Sensor capacitive touch sensor
Resolution 508 DPI
Image pixels 160×160
Image greyscale 8
Sensor dimension R15.5 mm
Fingerprint capacity 150
Matching time <500ms (1:N, and N≤100)
False acceptance rate < 0.001%
False rejection rate < 0.1%
Operating voltage 2.7~3.3V
Operating current < 50mA
Sleep current < 16uA
ESD contact discharge 8KV / aerial discharge 15KV
Communication port UART
Baudrate 19200 bps
Operating environment Temperature: -20°C~70°C; Humidity: 40%RH~85%RH (no condensation)
Storage environment Temperature: -40°C~85°C; Humidity: <85%RH (no condensation)
Pinout definition
Outline dimensions

Resources & Services

Selection Guide

Pros Durable, excellent anti-electrostatic   Small form factor, low power consumption
High precision, good detection/verification Small collecting area, high precision, good detection/verification High precision, good detection/verification
Cons Large dimension, low precision, interfered by lighting High environmental requirement (temperature, humidity, dust, alkaline air)
Features Separated structure Round-shaped, all-in-one Rectangle-shaped, all-in-one
Fingerprint capacity 4000 3000 500 150 3000
Image pixels 248*296 192*192 208*288 192*192 160*160 192*192
False acceptance rate <0.001% 0.0001% <0.001% <0.001%
False rejection rate <0.1%  0.01% 0.1% <0.1% 
Sensor life time 10 years about 200K times about 5M times about 1M times
Use condition More sensitive for wet fingers More sensitive for dry fingers
Applicable products Used frequently, like access control system Require high precision, like fingerprinting lock
Generally, optical modules are used in low-end products, while capacitive module are suitable for high-end products

Weight: 0.007 kg

Quick Overview

  1. UART Fingerprint Sensor (D) x1
  2. 6PIN squid wire x1