SKU: SENS-0566
📋 GST Invoice Available

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

₹2,039.00 (Inclusive of all taxes)
Out of Stock

The Waveshare Round-Shaped All-In-One Capacitive Fingerprint Sensor (D) integrates a high-performance Cortex processor and a commercial-grade fingerprint algorithm into a compact, 15.5mm diameter module. It communicates via UART (TTL) and is designed for easy integration with microcontrollers like STM32 and Raspberry Pi for secure biometric verification applications.

Features

  • High-performance Cortex processor with commercial-grade fingerprint algorithm for secure, reliable verification.
  • Capacitive touch sensor with 508 DPI resolution and 160×160 pixel, 8-bit grayscale image capture.
  • Simple UART command interface for fingerprint enrollment, matching, and image acquisition without deep algorithm knowledge.
  • Low-power design with automatic sleep/wake function (<16µA sleep current) triggered by finger touch.
  • Compact, round-shaped design with a stainless steel rim supporting 360° omnidirectional fingerprint placement.

Out of stock

Description

This all-in-one fingerprint sensor module combines a capacitive sensing element, a Cortex-based processor, and onboard firmware implementing a high-security commercial fingerprint algorithm. It handles the complete biometric workflow—from image acquisition and feature extraction to template generation, storage, and matching—internally, requiring only simple serial commands from a host controller.

The module operates on 3.3V logic and features robust ESD protection (contact discharge 8KV, aerial discharge 15KV), making it suitable for integration into end-user products. Its low-power sleep mode, activated automatically and woken via the WAKE pin or capacitive touch, optimizes energy consumption for battery-powered or always-on applications.

Key Features

  • Integrated Cortex processor and capacitive sensor in a single, compact R15.5mm package.
  • Commercial-grade fingerprint algorithm supports 1:1 and 1:N matching (N ≤ 100) with a matching time under 500ms.
  • UART TTL serial interface with a default baud rate of 19200 bps for straightforward host communication.
  • Comprehensive power management with RST (sleep control) and WAKE (touch-activated wake-up) pins.
  • High ESD immunity (8KV contact, 15KV air discharge) ensures durability in handling and field use.
  • Stainless steel rim provides mechanical protection and guides 360° finger placement for user convenience.
  • Optimized for low operating current (<50mA) and ultra-low sleep current (<16µA).

Applications

  • Secure access control systems for doors, safes, and lockers.
  • Biometric user authentication in IoT devices, smart home hubs, and personal electronics.
  • Attendance and time-clock systems for office or industrial environments.
  • Integration into portable, battery-powered medical or data-logging equipment requiring user verification.
  • Embedded security for maker projects, robotics, or custom microcontroller platforms (Arduino, ESP32, Raspberry Pi).

Technical Specifications

Sensor TypeCapacitive touch sensor
Resolution508 DPI
Image Pixels160 x 160
Image Greyscale8-bit
Sensor DimensionR15.5mm (Diameter)
Matching Time<500ms (1:N, N ≤100)
Operating Current<50mA
Sleep Current<16µA
ESD ProtectionContact discharge 8KV / Aerial discharge 15KV
Communication InterfaceUART (TTL)
Baud Rate19200 bps (default)
Operating Voltage3.3V DC
Pin FunctionsVIN, GND, TX, RX, RST (Sleep Control), WAKE (Wake-up)

Frequently Asked Questions

What is the operating voltage and communication interface for this fingerprint sensor?

The module operates on a 3.3V DC supply and communicates via a UART TTL serial interface. The default baud rate is 19200 bps. It uses standard TX, RX, GND, and VIN pins, along with dedicated RST (sleep control) and WAKE (touch-activated wake-up) pins for power management.

How do I enroll and match fingerprints with this module?

You interact with the module by sending simple UART commands from your host microcontroller (e.g., STM32, Raspberry Pi). The embedded Cortex processor and commercial algorithm handle all complex tasks internally. Commands are available for fingerprint enrollment, image capture, template generation/storage, and 1:1 or 1:N matching (up to 100 templates).

What are the power consumption characteristics?

During active operation, the module draws less than 50mA. It features an automatic sleep mode where current drops below 16µA. The module can be woken from sleep by pulling the RST pin high or by a finger touching the sensor surface, which triggers the WAKE pin.

Is this sensor suitable for outdoor or harsh environments?

While the sensor features a protective stainless steel rim and robust ESD protection (8KV contact/15KV air discharge), it is primarily designed for indoor use. The capacitive sensing surface requires direct finger contact and is not rated for waterproof or extreme environmental conditions.

Package Includes

  • 1 x Waveshare Round-Shaped All-In-One Capacitive Fingerprint Sensor (D) Module

Additional Information

Weight 0.005 kg
Dimensions 6 × 8 × 3 cm