GROW R307 Fingerprint حساس

GROW R307 Fingerprint Sensor

The R307 is a compact, self-contained optical fingerprint identification module that integrates an image sensor, on-board processing and flash storage so fingerprint capture, template generation and matching are handled inside the module. On power up the module initializes its sensor and firmware (≈200 ms) and then waits for commands over its serial or USB interface; when a finger is presented the unit acquires a greyscale image and stores it in the image buffer for processing.

Enrollment and verification workflows are implemented in the module: the host commands the R307 to capture images, convert them to character files, combine files into templates and store templates in the internal fingerprint library. The module supports both 1:1 verification and 1:N search modes and performs template matching internally, returning match results and scores to the host.

Despite its small physical footprint, the R307 exposes a rich instruction set (enroll, search, upload/download image/template, configure parameters, etc.), configurable system parameters (baud, security level, packet length) and a persistent flash library for templates — making it well suited for embedded access control, attendance and biometric projects where the host can be a microcontroller or a PC.

Features:

• Built-in optical sensor plus on-board image processing and template generation.
• Supports enrollment and matching: 1:1 (verify) and 1:N (search) modes.
• Internal fingerprint library with persistent flash storage (template storage by PageID).
• UART (TTL) and USB communication supported; semiduplex asynchronous serial protocol.
• Configurable system parameters (baud rate factor N, security level, data packet length).
• Image buffer and two character-file buffers for processing; supports upload/download of images and templates.
• Hardware RNG available (GetRandomCode instruction).

Specifications:

Parameter

Value / Detail

Sensor type:

Optical

Power / Supply:

DC ZKEEP0Z – ZKEEP1Z

Typical working current:

ZKEEP2Z

Interface / Communication:

UART (TTL logical level) and USB 2.0

Default baud / Baud control:

Default 57600 bps (PDF: baud = 9600 * N, N=1–12, default N=6)

Matching modes:

1:1 (verify) and 1:N (search)

Image acquiring time:

< 0.5 s

Template size:

ZKEEP3Z

Character file size:

ZKEEP4Z

Storage capacity (finger library):

Up to 1000 templates (library size recognized from flash)

Average searching time (1:1000):

< 1 s.

Security level:

5 levels (1..5); level affects FAR/FRR tradeoff

FAR / FRR:

FAR < 0.001% ; FRR < 0.1%

Image buffer format:

256×288 pixels BMP (transferred as 16-grey over UART, 8-bit over USB)

Working environment:

Temp: −ZKEEP5Z to +ZKEEP6Z; RH 20%–85% (non-condensing)

Storage environment:

Temp: −ZKEEP7Z to +ZKEEP8Z; RH < 85%

Window dimension / Module outline:

Window ≈ ZKEEP9Z × ZKEEP10Z; Module outline (split type) 44.1 × 20 × ZKEEP11Z

Dimensions:

Applications:

• Access control and secure entry systems.
• Attendance tracking systems.
• Biometric authentication for embedded / IoT devices.
• Smart locks and safe-locking mechanisms.
• Personalized device unlocking / user verification.

Package Contents:

• 1x GROW R307 FingerPrint Sensor.

Documents:

• Datasheet.