The system auto-locks after 5 seconds, and just in case, [Andrea] has hard-coded in a few safety codes into the firmware to allow him to forcefully open the door — you know, if it malfunctions ...

Posted in Arduino Hacks, home hacks Tagged arduino, arduino keypad lock, automated door lock, keypad ← Deconstructing Apollo Flight Hardware A Nightmare On CNC Street → ...

The hack is still pretty hardware intensive, but Arduino fans will love this clever hack—especially if you're the type that locks yourself out of your room a lot. It works as you'd expect it to ...