Description
Product Description
The R308 is a comprehensive, standalone biometric solution designed for high-speed fingerprint identification and secure access management. This all-in-one module integrates a high-precision optical sensor, a high-speed specialized DSP (Digital Signal Processor), and an onboard Flash memory chip to manage the entire biometric process—from image acquisition and feature extraction to template storage and matching—without requiring an external computer or complex processing from the host microcontroller.
Its compact, integrated structure makes it an ideal “plug-and-play” component for both hobbyist projects using Arduino and professional industrial applications. The module supports two primary operation modes: 1:1 verification (matching a finger against a specific ID) and 1:N search (identifying a finger from the entire database), providing flexible security options for various scales of deployment.
Key Features
- Integrated All-in-One Design: Combines the optical path, imaging array, and biometric algorithm chip into a single unit, simplifying secondary development.
- Touch Sensing Output: Includes a dedicated finger detection signal that can wake up a host CPU, making it perfect for battery-powered, ultra-low-power standby devices.
- High-Speed Processing: Rapidly captures and verifies fingerprints in under 0.3 seconds, ensuring a smooth user experience for busy access points.
- Industrial-Grade Reliability: Features a 500 DPI high-resolution scanner with an abrasive resistance intensity of up to 1 million scans and 15KV anti-static capacity.
- Flexible Communication: Uses standard UART (TTL) serial communication, allowing direct connection to Arduino, ESP32, STM32, and Raspberry Pi.
- Adjustable Security: Users can customize the security level (1–5) to optimize the balance between the False Acceptance Rate (FAR) and False Rejection Rate (FRR).
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