R305 UART Android Optical Biometric Fingerprint Sensor Module with 980 Storage Capacity Overview This optical fingerprint sensor module provides reliable biometric capture, local template storage, and straightforward serial communication for integration into access control, attendance, and device authentication systems. The module stores up to 980 fingerprint templates and communicates over a standard UART interface for easy connection to Android devices and other host controllers that support serial communication. Key benefits Secure, local authentication: Stores up to 980 fingerprint templates on the module, enabling ondevice verification without constant reliance on a host database. Easy integration: Standard UART serial interface simplifies connection to Android devices and embedded controllers, reducing development time. Practical for multiuser systems: template capacity supports small to medium user bases for access control and attendance tracking. Reduces host workload: Onboard template storage and matching offload processing from the host system. Compact and deploymentready: Module form factor fits embedded applications and retrofit installations. Features and attributes Function: Optical fingerprint capture, template storage, and templatebased verification. Interface: UART serial communication compatible with Android devices and other systems that support serial ports. Capacity: Stores up to 980 fingerprint templates for enrollment and verification. Performance: Designed for consistent fingerprint capture and reliable template matching in typical indoor environments. Form factor: Compact module suitable for embedded systems, kiosks, terminals, and retrofit projects. Durability: Built for repeated use in access and authentication workflows. Compatibility Works with Android devices and host controllers that provide UART serial connectivity. Suitable for integration with microcontroller and embedded systems that implement standard serial protocols. Practical applications Employee time and attendance: Enroll staff fingerprints and verify checkins locally for efficient shift tracking and payroll integration. Door access and security: Control door locks and entry points for small offices, labs, or server rooms with biometric verification for authorized users. Kiosks and point terminals: Add biometric login and user identification to selfservice kiosks, service terminals, or field devices running Android or serialcapable hosts. What you get A compact optical fingerprint sensor module implementing the R305 model capabilities with UART interface and 980template storage capacity. A module designed to be embedded in custom hardware or attached to Androidbased devices and serialcapable hosts. Integration tips Use a stable 3.3 V or 5 V power supply per your host requirements and ensure correct UART voltage levels when interfacing. Implement template enrollment and management routines on the host or use the module's onboard functions to minimize data transfer. Provide a protective mounting and placement to keep the optical window clean for consistent capture results. This module is suitable for developers and system integrators building reliable biometric authentication into access control, attendance, and device authentication applications where local template storage and UART connectivity are required.