Hey everyone iam back for my second post...thanks a lot everyone for the replies for my first post,I really appreaciate it. Anyways I hve a new assignment. I have been told to use arduino uno in this project, although I dont think its required. But anyways to keep it simple, there is a conveyor belt, a conveyor belt is a belt which is used to transport material from one place to another, you guys must hve seen it in airports, anyways there is a conveyor belt which can move along both ways forward and backward. Basically I have to sense the movement of conveyor belt, so that when it moves in one direction it should give a HIGH signal or anything that sought and when it moves in reverse direction it should sense LOW signal or anything that sought.
I was thinking of attaching servo motor at the bottom of coveyor belt so that when it moves in one direction it could send HIGH signal to arduino uno and when the conveyor belt is reversed the servo motor wil be also be reversed in that case it can send a LOW signal to arduino uno, or something along that line. Any thoughts on this idea or any other idea would be really helpful. We also need to keep in mind that conveyor belt will be moving with the mains source voltage, and arduino only works in 5V.