Challenge: Back Tracker

Our goal was to create a robot that would move three meters forward along a straight line, reverse, and procede three meters back to the starting point.

Programming Concepts We Have Successfully Applied to Challenge.
 

Set C Power 3

Set Direction C : right

On C

Rotation Sensor: -344 to -344 Set Direction C : left

Rotation Sensor: 0 to 0 Add to counter Counter 2 to 2 off C

We have constructed the Backtracker Level 5 Challenge robot. The robot will move forward 3 meters, reverse its direction, and return three meters to its starting point. We had some difficulties in the construction and programming of Backtracker.  Due to the strange ways in which our rotation sensor works, the robot would not stop upon reaching the start point.  This was solved through alterations to the program.  Also, our constrution team had some difficulty powering two wheels and the rotation sensor on one motor, without the robot turning to one side