the challenge was to make a robot that runs a course and get back to the black square
we first used a ultra sonic sensor to detect when it is close to the middle it didn’t work so we decided upon using a color sensor to detect the edge of the table and turn accordingly
we spent quite a while trying to get the turn right because it kept over turning and just flying of the edge
if we had to do it again we would use a second ev3 as a remote control
