A fingerprint sensor that uses the Crowtail interface in order to provide compatibility with Crowtail board. This all-in-one optical fingerprint sensor will make adding fingerprint detection and verification super simple. These modules are typically used in safes - there's a high powered DSP chip AS601 that does the image rendering, calculation, feature-finding and searching. Connect to any microcontroller or system with TTL serial, and send packets of data to take photos, detect prints, hash and search. You can also enroll new fingers directly - up to 120 fingerprints can be stored in the onboard FLASH memory. As the usage, the fingerprint is really easy to use with the serial UART. There are already some libraries to help your using this sensor with Arduino-compatible board , such as the Adafruit fingerprint library. We have also made a Demo: fingerprint lock on the instructables for Arduino to help you as a reference to use this module.
Features
Communication: UART(TTL)
Fingerprint number: 120 on default
Can set the security level and baud rate flexibility