How the GTS works?

[SoD]

Yes we got 2 sencors... why do we need both?

And where do we find the Gear Tooth and where should we place it? =/

[Alan Anderson]

You would use two gear tooth sensors if you wanted to sense and control the speed of two different gears. Think of the left and right side of the robot, for example.

You will find gear teeth at the periphery of any gear. You know the little pointy-shaped metal things that jut out from the gear and mesh with each other when two gears are placed together? Those are called teeth. That's what the gear tooth sensor senses.

[KTorak]

Originally Posted by SoD

Yes we got 2 sencors... why do we need both?

And where do we find the Gear Tooth and where should we place it? =/

Using two helps track your robot in a straight path because if one side spins faster than the other, the GTS will be off and you can make them correct the amount of gears to be equal by adjusting motor speed.