
93Chapter 5: The Joy of Joysticks
WHAT ARE WE BUILDING?
One of the strangest things about using a joystick to control a robotics
project is that in certain circumstances, its greatest strength can also be its
biggest weakness. In many cases, the spring-loaded nature of the joystick is
helpful, especially in situations like controlling a rolling robot that is driving
around on wheels. As you let go of the joystick, the robot stops moving. When
it comes to robotic arms, however, this relationship can make things more
difficult to control. This is primarily because the position of the robotic arm is
never where you left it: You need to apply const ...