Not quite robotics, but here are some examples of combining Lego Mindstorms NXT sensors /motor actions, and its I2C capability to trigger a camera shutter.


http://www.flickr.com/photos/24654705@N04/sets/72157625328768986/
http://www.youtube.com/watch?v=hh4RZXVmRNk
http://www.flickr.com/photos/24654705@N04/sets/72157625260840601/