SKU: SENS-0577
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R307S Optical Fingerprint Reader Sensor Module with 6-Pin Cable - TTL UART Interface

₹912.00 (Inclusive of all taxes)
Out of Stock

The R307S Optical Fingerprint Reader Sensor Module is a complete biometric sensor with an integrated optical scanner and algorithm chip, offering a TTL UART interface for direct connection to microcontrollers like Arduino, ESP32, or STM32. It operates from 4.2-6V DC and provides high-speed fingerprint verification and enrollment for embedded security applications.

Features

  • Integrated optical fingerprint sensor with onboard algorithm chip for standalone operation.
  • TTL UART serial interface for easy connection to microcontrollers (3.3V/5V logic).
  • High-resolution 500 DPI optical scanning with low false acceptance/rejection rates.
  • Supports 1:1 verification and 1:N identification modes with onboard fingerprint template storage.
  • Compact module design with low power consumption (<75mA), suitable for embedded systems.

Out of stock

Description

The R307S module integrates a high-resolution optical fingerprint sensor with a dedicated processing chip, handling image capture, feature extraction, and matching algorithms internally. This all-in-one design simplifies integration, requiring only a serial UART connection to a host controller for command and data exchange, eliminating the need for external image processing.

Built with professional optical technology, the sensor captures fingerprint images at 500 DPI, ensuring precise biometric identification. The module operates reliably across an industrial temperature range and is designed for low-power, continuous operation in access control systems, secure lockboxes, and attendance terminals.

Key Features

  • All-in-One design with integrated optical sensor and fingerprint algorithm chip.
  • High-performance 500 DPI optical scanning for accurate fingerprint capture.
  • Direct TTL UART interface (3.3V/5V logic compatible) for microcontroller integration.
  • Onboard fingerprint template storage supporting 1:1 and 1:N identification modes.
  • Low power consumption with a typical operating current under 75mA.
  • Fast verification speed of 0.2 seconds and scanning speed of 0.3 seconds.
  • Robust operating temperature range from -20°C to +50°C.
  • Compact and durable module construction optimized for embedded product design.

Applications

  • Embedded access control systems for doors, gates, and secure cabinets.
  • Biometric attendance and time-clock terminals for workforce management.
  • Secure authentication for smart locks, safes, and personal storage devices.
  • User identification in IoT devices, vending machines, and kiosks.
  • Secondary development platforms for custom biometric security projects.

Technical Specifications

ModelR307S Optical Fingerprint Reader Module
InterfaceTTL UART (Tx, Rx, VCC, GND)
Operating Voltage4.2 - 6 V DC
Current Consumption≤ 75 mA
Verification Speed≤ 0.2 seconds
Scanning Speed≤ 0.3 seconds
Resolution500 DPI
False Acceptance Rate (FAR)≤ 0.0001%
False Rejection Rate (FRR)≤ 0.1%
Template Size512 bytes
Character File Size256 bytes
Operating Temperature-20°C to +50°C
Module Dimensions (L x W)46 mm x 21 mm
Module Weight20 g

Frequently Asked Questions

What is the communication interface for the R307S fingerprint module?

The R307S module uses a TTL UART serial interface (Tx and Rx pins) for communication. It operates at 3.3V or 5V logic levels, making it directly compatible with most microcontrollers like Arduino, ESP32, or STM32 without needing a logic level converter. For connection to a PC's RS232 port, an external level converter chip like MAX232 is required.

What is the operating voltage range and current consumption?

The module operates from a 4.2V to 6V DC power supply. Its typical current consumption during operation is less than 75mA. It is crucial to provide a stable power source within this range to ensure reliable sensor performance and image capture quality.

How many fingerprints can be stored, and what are the identification modes?

The module stores fingerprint data as 512-byte templates internally. It supports both 1:1 verification (comparing one scan against one stored template) and 1:N identification (searching a scan against all stored templates) modes. The specific fingerprint capacity depends on the library and configuration used in your firmware.

What is the pinout of the included 6-pin cable?

The standard pinout is: Red wire for VCC (5V), Black wire for GND, Yellow wire for Tx (module transmits data on this pin), and Green wire for Rx (module receives commands on this pin). The two remaining pins are typically unused. Always confirm the pinout with your specific module's documentation before connecting.

Package Includes

  • 1 x R307S Optical Fingerprint Reader Sensor Module
  • 1 x 6-Pin Connecting Cable

Additional Information

Weight 0.02 kg
Dimensions 4.6 × 2.1 cm