The R307O Optical Fingerprint Sensor is a reliable biometric module designed for secure identification and access control. Featuring an integrated image collection and algorithm chip, it supports both 1:1 and 1:N fingerprint matching modes. With a TTL UART interface, it connects easily to microcontrollers or PCs via MAX232/USB-Serial adapters. The module allows storage and management of fingerprint data directly on the device, enabling standalone use or secondary development. Delivering high-quality image capture at up to 500dpi, it ensures accurate recognition. Compact, low-power, and cost-effective, the R307O is ideal for access control, attendance systems, safes, car locks, and other embedded security solutions.