Trying to pivot an ATX2/ATMega644P

@iiHex
First, welcome to the forum.
I googled ATX2 from your first post and obtained the bicycle. Probably not a lot of people knows what you mean: ATX2 microcontroller board for sumo robot, right? (TransIP - Reserved domain)
Your question seems to me pretty vague: 6 posts without any clue. I think, you should take a time to provide detailed information and then ask what you want. Just exactly what @BJHenry wrote (K+).

Robot from the link above, looks like ready to use kit.