Built-in optical fingerprint processing module designed for compact, low-power biometric integration Key benefits Integrated optical path and processing: the module combines the fingerprint sensor optics with an on-board processing unit, reducing external hardware and host CPU requirements. Small size and low power consumption: easy to embed in battery-powered or space-constrained devices. Reliable and fast performance: high detection reliability, quick capture and fast template search speed to minimize user wait time. Robust to finger conditions: good adaptability for both wet and dry fingers, improving real-world recognition rates. Simple integration and compatibility: communicates via USB and UART for straightforward connection to microcontrollers, embedded systems, or PCs. Core functions and performance Capture and processing: the optical sensor captures fingerprint images and the module’s fingerprint algorithm extracts feature templates from those images. Template handling and feedback: the algorithm generates fingerprint information for display and further use. On-board biometric operations: fingerprint storage, template comparison and template search are performed by the module’s internal functions, enabling local authentication without continuous host-side processing. Interfaces: supports USB and UART communication for data transfer, control and configuration. Design focus: compact, low-power architecture with emphasis on stable, high-speed fingerprint detection and search. Compatibility and integration notes Communication: use USB for PC or host-device integration and UART for direct connection to microcontrollers and embedded controllers. Integration advantage: built-in processing simplifies firmware on the host side and reduces data bandwidth needs compared with raw-image solutions. Deployment-ready: suitable for devices where compactness, battery life and reliable biometric performance are priorities. Practical use scenarios Access control and smart locks: integrate into door controllers and standalone locks to enable fast, reliable user authentication with minimal hardware footprint. Time & attendance terminals: embed in workforce management devices to provide quick identification, local template storage and fast search for large user sets. Embedded security and IoT devices: add biometric authentication to vending machines, kiosks or industrial HMI panels where USB or UART connectivity is available and power/space are limited. What it solves Cuts down system complexity by providing a single module that handles imaging, feature extraction and biometric operations. Improves user experience by delivering quick recognition and reliable performance even with wet or dry fingers. Lowers integration effort and power demands for compact or battery-powered applications through on-board processing and standard communication interfaces.