Description: 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. 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. Made of high quality ABS and metal material, it's environmentally friendly, wear-resistant and durable. The fingerprint module length is 5.6cm, width is 2.2cm, height is 2cm. It's very suitable for the development of attendance machines, access control, fingerprint collection and STM32 51 single-chip microcomputer. Item Name: Optical Fingerprint Module Material:Plastic,Metal Interface Type: USB Working Current: