Building Robots With Lego Mindstorms

Hand-to-Hand Combat • Chapter 27 535

to your navigation, attack, or defense subsystems.The simplest detecting system is a

sort of large bumper that covers a whole side of the robot. If you have enough

touch sensors, you can connect them in parallel so as to monitor three sides with a

single port. In this case, you’ll know you’re under attack but won’t be able to tell

what side it’s on.

When you detect you’ve been tackled, you have the option of either escaping

or facing your enemy.The first choice is best when fighting a slow, strong oppo-

nent, while the second works well when it’s your robot that has a strong push

(though it’s not always easy to tur ...