- New
Product description: Unit Fingerprint2 - fingerprint reader - M5Stack U203
Unit Fingerprint2 is a high-performance fingerprint recognition module designed for rapid integration into projects requiring user identification and authorization. The module combines an STM32 microcontroller with an integrated A-K323CP fingerprint recognition chip , offering complete support for the biometric process —from image acquisition and feature extraction to data comparison, retrieval, and storage. The capacitive semiconductor sensor ensures high recognition accuracy and reliability, while the built-in algorithm effectively handles both dry and wet fingers. The module supports UART communication, allowing for easy connection to popular control platforms. Additionally, a multicolor LED ring and power LED provide clear information about the device's operating status.
Unit Fingerprint2 - fingerprint reader - M5Stack U203. 
Unit Fingerprint2 is a powerful fingerprint recognition module designed for quick integration in projects requiring user identification and authorization.Special features
- Integrated STM32 microcontroller
- High-resolution capacitive fingerprint sensor
- Built-in fingerprint recognition algorithm
- Supports up to 100 saved fingerprints
- Adaptation to dry and wet fingers
- Data registration, search, comparison and management functions
- UART communication for easy integration with host systems
- Multi-color LED ring (7 colors) to indicate operating status
Practical applications
The Fingerprint2 unit is ideal for projects requiring access control and user identification. It is often used in smart door locks, time and attendance systems, identity authentication devices, payment terminals, and compact systems.
Technical specifications of the module
- Microcontroller (MCU): STM32G031G8U6
- Fingerprint module: A-K323CP
- Fingerprint resolution: 508 dpi
- Image resolution: 80 x 208 px
- Image data size: 8230 bytes (4 bits per pixel)
- Fingerprint memory capacity: up to 100 records
- Data size of one fingerprint: 7262 bytes
- Communication interface: UART 115200 bps, 8N1
- Power consumption:
- operating mode, "breathing light" on: 40 mA
- operating mode, backlight off: 37.25 mA
- sleep mode: 14.11 mA
- Dimensions: 24 x 62 x 8 mm
- Weight: 6.1 g
Contents of the set
- 1x Unit Fingerprint2 module
- 1x Grove HY2.0-4P cable (length 20 cm)
Additionally, a multi-color LED ring and a power LED provide clear information about the device's operating status. Useful links |
