I just spotted that Pololu does a shield version of that motor driver. See http://www.pololu.com/catalog/product/2503. The Resources tab on that page has a link to a user's guide, which includes a sample program.
I just spotted that Pololu does a shield version of that motor driver. See http://www.pololu.com/catalog/product/2503. The Resources tab on that page has a link to a user's guide, which includes a sample program.