1Multifunction: The all in one fingerprint identification secondary development module that can independently complete fingerprint acquisition, fingerprint registration, fingerprint matching and fingerprint search functions has the advantages of small size, low power consumption, universal interface, high reliability, super easy to use, expandable large capacity 1:N identification, etc., which can be easily embedded into the user system. 2Self Learning Function: During fingerprint identification, the latest extracted fingerprint feature value will be fused into the fingerprint database after successful identification, so that the user can use it more and more during the process of use. 3360 Degree Auto Correction Recognition Function: Press the correctly registered finger at any angle on the module, and the comparison can be passed. 4High Performance: The fingerprint recognition rate is low: the maximum can achieve 0.0001%, that is, in 1,000,000 different fingerprints, randomly pick a fingerprint, and use the other fingerprints in 1,000,000 in turn and the selected fingerprint comparison, there will be a recognition through. Fingerprint rejection rate is low: the maximum can be 0.0001%, in the existing 1,000,000 fingerprints, respectively, using 1,000,000 fingerprints in any order to compare 1,000,000 times, there will be one recognition failure. 5Wide Application Areas: It can be used in fingerprint access control machine, fingerprint root finder, fingerprint attendance machine, fingerprint locker, fingerprint car one touch start, fingerprint stamp, fingerprint lock, fingerprint safe, fingerprint POS terminal, hospital case fingerprint management, intelligent control equipment, etc.