Arduino powered door unlocker and secret knock detector

For our first Arduino project, we hacked together a wifi-enabled door lock with some nifty features. We used an Arduino and a WiFly shield, a modified servo motor, and a few other things.

The end product is pretty cool and has these features: - Unlock / Lock your door with your voice using Siri, an iPhone app, SMS, or a mobile web page (iphone app requires iOS developer account) - Monitor whether the door is locked or unlocked from far away - Get SMS messages when someone knocks on your door - Unlock your door with a secret knock (hard-coded for now)