Are you fascinated by time-lapse movies, but don't want to spend your money on expensive gadgets?
To shoot time-lapse series with a photo camera, you need a device called an intervalometer. It tells your camera to take pictures at specific intervals.
I've built an intervalometer for Canon SLR cameras (e.g. EOS 300-400, DigitalRebel) based on Arduino. I call it the Intervaluino. If you want to build one yourself, I've posted circuit schematics, component list, code, photos, and an explanation on my blog:
The description assumes basic electronic and soldering skills.
Let me know what you think! LordYo
PS: fyi, I cross-posted this on the MAKE forum (http://forums.makezine.com/comments.php?DiscussionID=3081)