Robotics+Assignment-4.+Edge+Finder

__**Activity 4-**__ **Edge Finder** - know how to attach a light sensor. - know how to use the robot to measure the difference between the reflected light in the middle of the table and at the edges. - know how to set the light sensor properties correctly, using the signs to get the robot to respond to the differences in light that we measure. - know how to get the robot to reverse away from the edge of the table before turning around.
 * 4.a** In order to complete this task we need to:

The direction that the table faces will create a shadow on one or more of its' sides. Therefore we must measure the amount of light on all the edges of the table otherwise we could set the level too high/low and the robot won't react to the change in light, driving straight off the table. Also the positioning of the light sensor will affect the robots' ability to detect a change in light. We have to make sure the sensor is directed in front of the robot, so it can detect a change in light before it is too late for the robot to turn around.
 * 4.b** Here are some of the factors that will affect the success of our robot.

media type="file" key="audio reflection four.wav" width="300" height="50"
 * 4.c** Screen Shot taken on Thursday, 19th August
 * 4.d media type="youtube" key="kL5YGBeAvGU" height="344" width="425"**
 * 4.e** Audio Reflection