GROW R307 Optical Fingerprint Sensor UART/USB Embedded Module 44.1×20×23.5mm

Description

GROW R307 Fingerprint Sensor UART/USB Embedded Module 44.1×20×23.5mm 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 4.2 V – 6.0 V Typical working current: 50 mA 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: 512 bytes Character file size: 256 bytes 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: −10 °C to +40 °C; RH 20%–85% (non-condensing) Storage environment: Temp: −40 °C to +85 °C; RH < 85% Window dimension / Module outline: Window ≈ 19 mm × 21 mm; Module outline (split type) 44.1 × 20 × 23.5 mm 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 Optical Fingerprint Sensor UART/USB Embedded Module 44.1×20×23.5mm. Documents: Datasheet . Note If you want more informations chick this Link Fingerprint Sensors

From the supplier's page.