R307 Optical Fingerprint Sensor Module Overview The R307 optical fingerprint sensor module integrates fingerprint input, image processing, feature extraction, template generation, template storage, 1 to 1 matching, and 1 to N fingerprint search in a compact module designed for secondary development and embedding in end products. It offers reliable image capture up to 500 DPI and a small, low power design suitable for access control, attendance tracking, and lock systems. Key benefits - Ready for integration: Built-in fingerprint algorithm and processing reduce host workload and speed up development. - Accurate image capture: Optical sensor and image processing capture high-resolution fingerprint images up to 500 DPI. - Compact and efficient: Small form factor with low operating current makes it suitable for battery powered and space limited devices. - Scalable user capacity: Stores up to 1000 fingerprint templates on the module for standalone identification. - Flexible matching modes: Supports secure 1 to 1 verification and 1 to N fingerprint search for different application needs. Core features and specifications - Model: R307 fingerprint sensor module. - Sensor type: Optical fingerprint sensor with professional optical processing. - Capture area: Fingerprint capture window measures 14 by 18 mm. - Image resolution: Up to 500 DPI. - Power supply: DC 4.2 to 6.0 V. - Current consumption: Typical working current 50 mA; peak current 75 mA. - Matching methods: 1 to 1 comparison and 1 to N search. - Template storage: Each template file size 512 bytes. - Storage capacity: Up to 1000 templates. - Security level: Configurable 1 to 5, where 1 is lowest and 5 is highest. - Host interface: RS232 with TTL logic level and USB. - Communication baud rate: 9600 times N bits per second, where N ranges from 1 to 12; default N equals 6 resulting in 57600 bps. - Data package: Module and cable included. Why this module solves common problems - Reduces development time by handling image processing and template management on the module itself, so the host system requires less processing power. - Minimizes hardware footprint and power requirements for embedded systems where space and energy are limited. - Offers configurable security levels to balance false acceptances and false rejections according to application needs. - Provides multiple communication options for compatibility with microcontrollers and single board computers. Compatibility and integration - Designed for easy integration with Arduino and other microcontroller platforms through TTL RS232 or USB. - Communication settings are adjustable to match host system baud rates. - Template storage on the module enables local verification without continuous host involvement. Practical use scenarios - Door access control system: Use the R307 module to verify authorized users at entrances, storing user templates locally and handling verification on the module to reduce network traffic. - Employee attendance terminal: Integrate the module into a compact attendance reader to log staff presence with fast 1 to N searches and local template storage. - Smart lock for vehicles or cabinets: Embed the module in door lock electronics to provide biometric unlock capability with low power draw and reliable image capture. What is included - 1 x R307 optical fingerprint module. - 1 x connection cable. This module is provided as a development-ready optical fingerprint sensor suitable for embedding in access control, attendance, and locking systems, and for integration with Arduino and similar controller platforms.