This booth has an ultrasonic sensor, if you pass in front of it, it will trigger an Arduino to send to 1Sheeld's Camera shield on a smart phone to take a photo of you and uploads it with #makerfaire on Twitter.
All you have to do is jump to trigger the sensor then smile to the camera :)
More photos are uploaded on our Facebook page here:
http://on.fb.me/1IeSUwo
More information on how to build it here:
http://www.instructables.com/id/Autom...