I'm currently trying to build an RGB Arduinome[1] using an arduino board, and it's my first interaction with µ-controllers. I am <i>loving</i> it. As simple as it is, seeing an LED blink a pattern you just programmed into it is very rewarding. Reminds me of the first time I drew a few circles with BASIC when I was nine.<p>[1] <a href="http://en.wikipedia.org/wiki/Arduinome" rel="nofollow">http://en.wikipedia.org/wiki/Arduinome</a>