I need some help straightening this out. I am going to use a boarduino and this motor driver http://www.sparkfun.com/commerce/product_info.php?products_id=9670
I'd like to power it all with one 9v battery. I see that the motor driver has a regulated 5v output. Can I use that output to power the boarduino? If not, how can I power both things with one battery?