Objective: In this activity, you will add a rotational sensor to your mobile robot and have it move a precise distance.

Design Specifications • Your robot must move a distance of precisely 1.20 meters. • You must do this for two different sized wheels. • You will store two separate programs in the RCX.

What You Should Know Circumference Gears and Accuracy Programming: Rotation Sensor Rotation Sensor

Helpful Hints • Use gears to both move your robot at a reasonable speed and increase the resolution of the rotation sensor.

Student Worksheet