R307 Optical Fingerprint Scanner Module – Biometric Sensor with TTL Serial Interface

Secure Biometric Authentication with R307 Optical Fingerprint Sensor

The R307 Fingerprint Scanner Module is a high-performance biometric identification sensor that captures, stores, and matches fingerprints with great accuracy. It uses an optical sensing technology to scan fingerprints and supports fingerprint enrollment, searching, and matching with onboard storage capability.

It communicates using a TTL serial interface, making it easy to connect with Arduino, Raspberry Pi, STM32, AVR, and other microcontrollers. Ideal for access control systems, time attendance machines, biometric safes, and secure locks.

This module also includes a standard flat cable and can store up to 1000 fingerprints internally. It supports both 1:1 and 1:N fingerprint matching.

📦 Specifications:

• Model: R307

• Sensor Type: Optical

• Interface: UART (TTL Serial)

• Working Voltage: DC 3.6V – 6V

• Current Consumption: <100mA

• Image Size: 256×288 pixels

• Fingerprint Capacity: Up to 1000 templates

• False Acceptance Rate (FAR): <0.001%

• False Rejection Rate (FRR): <0.1%

• Matching Mode: 1:1 and 1:N

• Baud Rate: Default 57600 bps (adjustable)

• Cable Length: ~20 cm with connector

• Package Includes: 1x R307 Fingerprint Module, 1x Wired Connector