R307 Optical Fingerprint Sensor Module

The R307 Optical Fingerprint Reader makes fingerprint scanning straightforward. It connects easily to microcontrollers or PCs using a TTL UART interface or through a MAX232/USB-Serial adapter. You can store fingerprints on the device and set it to recognize individuals in different ways.

This fingerprint sensor module includes an optical sensor, a fast processor, and smart algorithms for capturing and matching fingerprints. It works with 3.3V or 5V microcontrollers and is great for projects like access control systems, attendance tracking, or secure locks. Its small, uses little power, and captures clear fingerprint images with a resolution of up to 500 dpi.

check out: FM220U Finger Print Scanner

Features

• All-in-one design integrating image capture and algorithm processing chip.
• Supports secondary development and easy integration into various end-use products.
• Compact, cost-effective, and energy-efficient with reliable performance.
• Utilizes advanced optical technology and precision manufacturing for high-quality output.
• Capable of capturing high-resolution images up to 500 dpi with strong image processing performance.

R307 Optical Fingerprint Sensor Module Pinout:

Also, check out: Mantra MFS-100 Biometric Finger Print C-Type Scanner

Applications

• Secure access control for doors, cabinets, and lockers.
• Attendance systems for schools, offices, and events.
• Embedded security in IoT devices and smart home systems.
• Biometric authentication for microcontroller projects (Arduino, ESP32).
• User recognition for robotics and interactive installations.
• Time-logging and user-tracking in small business workflows.
• Safe storage solutions (e.g., safes, toolboxes) with biometric keyless entry.