We used motion sensors to make a LED light turn on depending on how close and object was in its way. We used this concept for our robot, so that it could sense when there was an object in its way.

We decided to test out the Sparkfun to see if there were things that we could add into our robot. In this circuit you would put your finger on top of the photoresistor, so that all the light would be blocked out. Then you would turn the blue nob and the color would change.