This UART fingerprint reader module is an intelligent, modular biometric sensor designed for scientific research and embedded system integration. It combines a speed STM32F205 digital processor, commercial fingerprint algorithms, and precision optical sensing to deliver accurate fingerprint capture, template generation, storage, and fast matching via a UART interface. Key benefits Sensitive sensing and fast recognition: precision optical imaging and optimized processing allow reliable capture and quick recognition with a light fingertip touch. Stable, lowpower processing: powered by an STM32F205 speed digital processor that provides low power consumption and stable operation, designed to be at least 30 percent more stable than comparable domestic chips and other platforms. Modular and replaceable design: split architecture separates fingerprint sensor, processing board, and algorithm platform for flexible upgrades and maintenance. The sensor can be independently swapped between optical and semiconductor types. Researchready interface and protocols: provides a UART interface and clear communication protocols tailored for scientific research units, easing integration and data acquisition. Complete fingerprint pipeline onmodule: supports image capture, image processing, feature extraction, template generation, template storage, fingerprint comparison, and search functions. Technical features Core processor: STM32F205 speed digital processor for onboard computation and control. Algorithms: commercialgrade fingerprint algorithms for fast feature extraction and matching. Sensor options: precision optical sensor by default, with the option to use semiconductor sensors as needed. Structure: split architecture consisting of fingerprint sensor, processing board, and algorithm platform for durability and upgradeability. Interface: standard 16P universal connector and UART communication with documented protocol for easy interfacing to microcontrollers and host systems. Performance: designed for fast recognition, stable operation, and low power consumption to suit continuous or intermittent use. Functions Fingerprint capture and image processing Feature extraction and template generation Template storage and management Fingerprint comparison and speed search UART communication and protocol support for command and data exchange Practical applications Laboratory and research projects needing a reliable biometric data source for algorithm testing, sensor evaluation, or prototype development. Embedded access control and authentication prototypes where modularity and clear UART integration simplify system design. Time and attendance, device authentication, or equipment access systems in controlled environments that require ondevice template management and fast matching. Integration notes Uses a standard 16P interface and UART protocol for straightforward connection to development boards and host processors. Sensor type can be chosen to match environmental, size, or cost constraints without redesigning the processing board. Documentation for communication protocol and integration steps is provided for research and development use. This module delivers a complete, modular biometric solution optimized for research and embedded applications that require precise sensing, full onboard fingerprint processing, and UARTbased integration.