R305 Fingerprint Sensor Module for Arduino & Raspberry Pi | Biometric Access Control

The R305 Fingerprint Sensor is a high-precision biometric module designed for secure and reliable fingerprint recognition. Widely used in access control systems, smart door locks, time attendance systems, and identity verification projects, this module integrates seamlessly with Arduino, Raspberry Pi, and other microcontrollers.

With built-in image processing and storage capability, the R305 can store up to 256 fingerprints, enabling quick 1:1 and 1:N matching. It includes onboard DSP (Digital Signal Processing) for capturing, converting, and storing fingerprint templates. The UART serial interface makes communication simple and efficient, even for beginners.

Whether you’re building a secure door lock or a time-tracking system, the R305 module ensures consistent performance with excellent anti-fake fingerprint ability and fast recognition speed.

✅ Key Features:

• Optical fingerprint sensor with high resolution

• Stores up to 256 fingerprints in internal memory

• UART communication (3.3V/5V logic level compatible)

• Onboard DSP chip handles image processing

• Easy integration with Arduino, Raspberry Pi, STM32, etc.

• Compact and durable for embedded security applications

🛠️ Applications:

• Biometric door lock systems

• Time attendance systems

• Smart safes and lockers

• Personal identification in embedded systems

• Secure access control for IoT devices