One of the things I plan on doing is making a motion activated camera with my raspberry pi. The code doe that part is already out there, however I want to also build a notification system, and a means of deactivating it. I want to put it into my apartment to record video of people if they break in and send me a message in some way telling me so. BUT, I need a way to deactivate it once I'm in the apartment so I'm not recording myself all the time.
This seems VERY cool, I might do it as well. https://www.reddit.com/r/raspberry_pi/comments/681ie1/behold_the_worlds_smallest_raspberry_pi_gaming/dguy2bg/