Gear Ratios and the Rotation Sensor

To measure a distance that is exact enough to meet the specifications of this challenge, we will have to use gear ratios. Increasing the gear ratio of the wheels will both give the wheels more torque and allow the rotation sensor to measure more accurately. This is because the number of divisions per wheel goes up with the gear ratio. To do this, I will have to connect the wheels to a gear with more teeth than the gears the wheels are resting on.