Ryan Walmsley is one of our favourite people. Towards the end of last year he had a successful fundraising effort on Tindie for his RTK-000-001 low-cost motor controller kit. As part of his ongoing campaign of world domination (seriously, how many seventeen-year-olds choose a product namespace with a million possible entries?*), the kit is now available for sale on Adafruit’s website. If you’re in the US, want a low-cost way to drive a couple of DC motors from your Pi, and aren’t afraid of a bit of soldering, this could be the board for you.
* Assuming that number is in decimal. What if it’s hex? Yikes!