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The Capacitive Fingerprint Reader (B) is a fast and stable capacitive fingerprint module designed for secondary development, ideal for integrating into your own application with the dual-port (UART or USB-C) functionality.
By incorporating a high-performance Cortex core processor, high-security commercial fingerprint algorithm and an advanced semiconductor fingerprint sensor, this module is designed as an intelligent integration module with functions including fingerprint enrolling, image processing, template generating and storing and fingerprint matching/searching.
Online development resources provide examples for the Raspberry Pi and Arduino alongside other useful information.
| Sensor | Semiconductor (capacitive) |
| Module dimension | 34 × 28.5mm |
| Sensor dimension | 33.4 × 20.4mm |
| Image | DPI 508 |
| Image resolution | 208 × 288 |
| Greyscale | 256 (8-bit) |
| Sensing area | 14.6 × 10.6mm |
| Fingerprint capacity | 3000 |
| Security level | 1-5 configurable, 3 by default The higher value, the lower FAR (False Acceptance Rate), yet the higher FRR (False Rejection Rate) |
| Encryption key | 64-bit encryption |
| Image collecting rate | 20fps |
| Matching time | 0.5s |
| Dynamic current | <40mA |
| Operating voltage | 3.3-5V |
| Communication port | UART or USB-C |
| ESD | SD IEC 61000-4-2 LEVEL 4 positive/negative 15KV air discharge |
| Baudrate | configurable: 9600, 19200, 38400, 57600, 115200, 230400, 460800, 921600bps 115200bps by default |
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