Grow R304S Fingerprint Module with USB 2.0 & UART Interface
The Grow R304S Fingerprint Module is a compact biometric sensor offering USB 2.0 and 3.3V TTL UART interfaces for integration into access control, attendance, and embedded security systems. It features a 508 DPI optical sensor with a capacity for 1000 fingerprint templates, operating from a 4.2-6.0V DC supply.
Features
- High-resolution 508 DPI optical fingerprint sensor with 208 x 288 pixel array.
- Dual interface: USB 2.0 for direct PC connection and 3.3V TTL UART for microcontroller integration (Arduino, ESP32, Raspberry Pi).
- Large storage capacity for up to 1000 individual fingerprint templates.
- Low power operation with a working current under 55mA from a 4.2-6.0V DC supply.
- Compact form factor (20.4 x 33.4 mm) with an 11 x 15 mm effective collection window.
Out of stock
The Grow R304S is an integrated fingerprint processing module combining an optical sensor, image processor, and matching algorithm on a single chip. It captures high-definition fingerprint images suitable for reliable 1:1 verification and 1:N identification tasks, even under varying finger conditions.
Communication is facilitated via a standard USB 2.0 port for host computer applications or a 3.3V logic-level UART serial interface for direct embedding into microcontroller-based projects. The module’s low power consumption and robust construction make it suitable for deployment in standalone battery-powered devices and continuous-duty industrial systems.
Additional Information
| Weight | 0.2 kg |
|---|---|
| Dimensions | 10 × 3 × 8 cm |
















