QBLDX FPM10A Optical Fingerprint Reader Sensor Module Door Lock Fingerprint Scanner Module for Arduino Serial Communication Interface

Working principle: Through the principle of optical imaging, the lines created by the unevenness of the skin on the inner side of the finger will form various fingerprint images. The texture of the skin is different in patterns, breakpoints and intersections. They are called in information processing. "Feature points", each finger's characteristics are different, that is, unique, relying on this uniqueness, we can associate a person with his fingerprint, by pre-storing his fingerprint By comparing the fingerprints, you can verify his true identity. The fingerprint identification system collects, analyzes and compares fingerprints through special photoelectric conversion equipment and image processing technology, and can identify personal identity automatically, quickly and accurately. The system mainly includes processes such as fingerprint image acquisition, fingerprint image processing, feature extraction, and comparison and matching of feature values. Specifications: Supply voltage: DC 3.6 ~ 6.0V / 3.3V Supplying Supply Current: Current: <120mA Peak current: <140mA Fingerprint image time: <1.0 seconds Window size: 14 * 18 mm Matching mode: Match mode (1:1) Search mode (1: N) Signature File: 256 bytes Template files: 512 bytes Storage capacity: 200 Safety level: five (from low to high: 1,2,3,4,5) False Accept Rate (FAR): <0.001% (security level 3) False Reject Rate (FRR): <1.0% (security level 3) Search time: <1.0 seconds (1:500, the mean) PC Interface: UART (TTL logic level) or USB2.0 / USB1.1 Communication baud rate (UART): (9600 * N) bps where N = 1 ~ 12 (def