AS608 is a biometric sensor module that can read fingerprints using optical scanning and perform image capture, feature extraction, templating and matching completely in-house thanks to its internal processor. It can store up to 127 fingerprint templates in its internal flash memory. It communicates with Arduino and ESP series boards via UART protocol; enrollment, deletion and verification processes can be easily managed thanks to the ready-made library developed by Adafruit. It creates a template by scanning the fingerprint twice and supports two different matching modes, 1:1 (verification) and 1:N (search). Operates on 3.3V. It is the most widely used and most community-sourced cost-effective fingerprint solution for access control systems, smart safe locks and personnel attendance trackers.
