[Chris] sent us this great tutorial, introducing novices to H-bridge motor drivers. While lots of of you will consider this stuff basic, those who are trying to expand from building only things the arduino board can handle to bigger a lot more expansive (and powerful) jobs will find this rather helpful. [Chris’s] tutorial is extremely in depth, not only going with the construction of the basic circuit but also showing you how to make your own PCB. Pop on over there and discover some theory and some practice. then you can build that battle bot you’ve always been dreaming of!