Twitter Hack – How to Make a Laser-Trip Webcam Security System!

Here’s a great Twitter Hack that involves Arduino, Linux, webcam, and a laser pointer to make it a complete Twitter Security System!  Awesome, this is the best use of Twitter I have seen so far, simple yet effective webcam security system!

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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.

via instructables

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