The Biometric Security Box uses the Adafruit Fingerprint Sensor as well as a numeric pass-code and a mechanical key-lock to provide triple-security.  This tutorial is based on a 4x6 card file box, but can be easily adapted to larger lock-boxes – or even a full-size door!

Last updated on 2014-04-14 at 08.56.42 PM Published on 2012-12-29 at 03.55.53 PM