Habemus Arduino Fingerprint sensor!
Very easy to use, only to 2 wires.
I buyed from Adafruit, on Github, the Arduino Example and Libraries:
https://github.com/adafruit/Adafruit-Fingerprint-Sensor-Library
Copy examples and libraries into Arduino folder and… Build and Run!
If you have a good idea or a funny project, please share it!
Enjoy security and have fun!