Optical Finger Print SENSOR (R307):

Robo Pixel presents the R307 Fingerprint Sensor — a compact optical biometric module with UART/TTL interface, up to 1000 template capacity, sub-second matching and easy Arduino/MCU integration. Ideal for access control, attendance, and DIY security projects.

Secure, reliable and easy-to-integrate — the R307 is an optical fingerprint sensor module with built-in DSP for on-module enrollment and matching (1:1 and 1:N). With fast capture and search, configurable baud rates and wide compatibility with microcontrollers, the R307 is perfect for access control systems, biometric attendance, smart locks and maker projects.

Key Features

• On-board fingerprint processing: enroll & match on the module (no heavy host processing)

• UART / TTL (and USB variants available) — plug-and-play with Arduino, ESP32, Raspberry Pi (via USB-to-serial)

• High-speed capture and verification — image acquisition and verification in well under 1 second

• Large template storage — stores up to ~1000 fingerprint templates (module variant dependent)

• Compact optical sensor with long service life (rated for millions of scans)

Applications

• Biometric door locks & smart locks

• Employee attendance & time clocks

• Secure access control for offices, shops and labs

• ATM / kiosk / POS authentication (where optical sensors suffice)

• DIY & maker projects requiring secure, user-friendly authentication