In this video, I show you how the fingerprint sensor works and how we can program it using the Adafruit fingerprint sensor library.

✅The oldest way of obtaining and comparing fingerprints is with optical fingerprint scanners. As the name implies, this method is based on the capture of an optical image, which is essentially a photograph. It then analyzes the lightest and darkest portions of the image to discover unique patterns on the surface, such as ridges or marks, using algorithms.

✅The principle of Operation Fingerprint processing consists of two parts, fingerprint enrollment, and fingerprint matching.

When enrolling, the user needs to enter the finger two times. The system will process the two-time finger images. then it will create a feature extraction of the finger vein patterns. based on repeated line tracking. Finally, the system will generate a template of the finger based on the results of the processing and store the template.

When matching, the user enters the finger through the optical sensor, and the system will generate a template of the finger, and compare it with the templates of the finger library that already stored with a specific ID.
For 1:1 matching, the system will compare the live finger with a specific template designated in the Module, for 1:N matching, or searching, the system will search the whole finger library for the matching finger. In both circumstances, the system will return the matching result, success or failure.

🔊 Adafruit-Fingerprint-Sensor-Library: https://github.com/adafruit/Adafruit-...

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