Sensor characterization: pick from the following two assignments:
A. Calibrate an IR sensor to have your pegbot stop 6 inches from an obstacle. The robot should either stop until the obstacle is removed (or back up and turn away from the obstacle). When stopped, the robot should indicate it is in front of an obstacle on the bot client.
B. Calibrate an IR sensor to find corners/gaps in a wall (such as mousehole or entrance into another part of the playing field). When it finds a corner/gap, the robot should pause and indicate this information on the bot client.