How'd u use a light sensor?
I built Mine with touch sensors that would let it know when It's going up against the wall. When then it will know if it strays away from the wall or it hits a corner.

BTW, does anyone know what the writing supplement of the homework is this time? Is it a drawing, translation, or problem list?

My real question does the robots have to go only one way following the wall or must it turn 180 degress if the wall ends. Basically does it just have to go one way in a closed room or will it have to go mutiple ways if the door is open.

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I hav no idea what you're talking about, honestly, but I would think the wall follower would only go in one direction if it never let go of the wall it was following. There for, It would go in a humongous circle.

I'm having some problems with my robot and I need help...
my robot can't turn because its too heavy. I've taken off everything I can to make it lighter, didn't work, I tried changing motor speeds, didn't work... I need HELP!!!

who tried the light sensor, i tried it and decided to make sure the light doesnt change i used a container and it is yet to work the robot does respond to the difference of being close to or away from the wall its just that the changing of light at all times makes it go nuts i also tried attaching a lamp and that just messed things up