It’s going to be an exciting year as Twitter hacks such as this one appears. It’s a laser-tripped webcam that actually can tweet the photo taken to Twitter. I think this could serve as a great security device on the cheap.
It requires a bit of hacking though, looks like an Arduino, Linux, and bunch of programming, not for the faint-hearted indeed.
This instructable will show you how to construct a laser tripwire that can twitter and grab an image from a webcam, as well as execute any command you can put in a bash script.
This instructable is actually quite simple and is even suitable as a beginner arduino project. It requires a GNU/linux (or possibly Mac) operating system with the arduino IDE and Processing IDE working properly. This project could also be implemented in Windows if you created a more complex processing application.