R307 Fingerprint Sensor Module for Arduino Door Lock Access Control, Fast Biometric Recognition

R307 fingerprint module combining an optical sensor and onboard algorithm chip for compact, reliable biometric identification. Designed for easy embedding and secondary development, it fits a wide range of end products while keeping power consumption low and performance . Key benefits Integrated design: Image capture and template processing are handled on the module for simpler system integration and faster response. Fast, accurate recognition: Verification in about 0.2 seconds and scanning in about 0.3 seconds with 500 DPI optical resolution for clear fingerprint images. Robust performance: Low power usage with typical current under 75 mA, long sensor life rated to 100 million uses, and builtin finger detection to avoid false captures. Flexible integration: Standard USB2.0 and UART (TTL logical level) interfaces, plus RS232 support with adjustable baud rates, make the module compatible with common microcontrollers and embedded systems. Secure templates and compact storage: Stores up to 1000 fingerprint templates; template size 512 bytes; character file size 256 bytes; 1:N matching supported. Durable and reliable: Professional optical technology, precise manufacturing, and 15 kV static protection for industrial and consumer applications. Technical specifications Model: R307 fingerprint module Sensor type: Optical Resolution: 500 DPI Image capture area: 15 x 11 mm Verification speed: about 0.2 seconds Scanning speed: about 0.3 seconds Finger detection: Yes Template size: 512 bytes Character file size: 256 bytes Storage capacity: 1000 templates Matching method: 1:N Security level: 3 (scale 1 to 5) False Acceptance Rate (FAR): 0.0001 percent or lower False Rejection Rate (FRR): 0.1 percent or lower Interfaces: USB2.0 and UART (TTL logical level); RS232 supported RS232/UART baud rate: configurable from 9600 to 115200 bps Voltage: 4.2 to 6 VDC or 3.3 V option Working current: typical less than or equal to 75 mA Sensor life: 100 million times Static protection: 15 kV Backlight color: Blue Operating temperature: 20 to 50 degrees Integration and development Designed for secondary development and embedding into access control panels, attendance terminals, smart locks, safes, kiosks, and other security or consumer devices. Clear communication options and compact form factor reduce development time and simplify hardware interfaces. Onmodule processing reduces host CPU load and simplifies firmware development for enrollment, verification, and template management. Practical use scenarios Door access control: Integrate the module into standalone or networked door controllers for fast, secure entry without cards or keys. Time and attendance terminals: Use the module in staff attendance systems to store and verify up to 1000 user templates with low false acceptance and rejection rates. Smart locks and secured storage: Embed in lockers, safes, or vehicle entry systems to provide reliable fingerprint access with finger detection to prevent accidental scans. The R307 module delivers compact size, low power consumption, reliable optical imaging, and flexible interfaces for developers and integrators building biometric solutions.