I’m teaching a Critical Making course and a question came up regarding how to run a DC motor from the Arduino. It was a bit tricky to get figure out how to do this using the parts in the Economic Starter Kit that students were told to purchase from Creatron, our local purveyor of maker stuff. There were a couple of puzzles, how to use the parts we were given and which online tutorial to follow.
I played around a bit and here is my result. I used the tutorial from bildr, which I found via the page for my MOSFET transistor on Sparkfun.