R307 Optical Fingerprint Scanner Module for Arduino

The R307 fingerprint module is an advanced optical fingerprint sensor module designed for seamless integration with Arduino and other microcontrollers. This fingerprint optical scanner features a TTL UART interface for direct connection to microcontrollers or PC through MAX232 / USB-Serial adapters. Users can store fingerprint data directly on the module and configure it in 1:1 or 1:N mode for efficient user identification.

Compatibility of Fingerprint R307

The R307 fingerprint module with Arduino is compatible with 3.3V or 5V microcontrollers such as Arduino and NodeMCU. For connecting to a PC serial port, a level converter like MAX232 is required. This makes it versatile for various embedded system applications.

Key Features of Fingerprint Optical Scanner

• Integrated image collecting and algorithm chip for all-in-one operation
• Supports secondary development and customization
• Can be embedded into access control, attendance systems, safety deposit boxes, car door locks, and more
• Low power consumption, compact size, and excellent performance
• Professional optical technology with precise manufacturing
• High-quality image processing, capturing images up to 500 dpi resolution
• Finger detection functionality for accurate scanning

Specifications of R307 Fingerprint Module

• Supply Voltage: DC 4.2 ~ 6.0V
• Supply Current: Working: 50mA (typical), Peak: 80mA
• Fingerprint Image Input Time: <0.3 seconds
• Window Area: 14×18 mm
• Matching Method: 1:1 comparison or 1:N search
• Characteristic File: 256 bytes, Template File: 512 bytes
• Storage Capacity: 1000 fingerprints
• Security Level: 1 to 5 (low to high)
• Fake Rate (FAR): <0.001%, Refusal Rate (FRR): <1.0%
• Search Time: <1 second (1:1000 average)
• Host Interface: UART / USB1.1
• Communication Baud Rate (UART): (9600×N) bps, N = 1~12 (default N = 6 → 57600bps)
• Operating Environment: Temperature: -20℃ – +40℃, Humidity: 40% – 85% RH (no condensation)
• Storage Environment: Temperature: -40℃ – +85℃, Humidity: <85% RH (no condensation)

Applications of Fingerprint R307 Module

• Arduino-based biometric authentication and access control
• Attendance management systems
• Security systems and smart locks
• Embedded projects requiring fingerprint optical scanner integration
• DIY and robotics projects using R307 fingerprint module with Arduino