Unit 11 - Ultrasonic Range Finder

Unit Objectives

This unit explains the functionality of an ultrasonic rangefinder.

Lesson 11.1 (240 minutes)

This unit explains how an Ultrasonic Rangefinder works from a physical and programming standpoint.


  • Explain the purpose of an ultrasonic sensor
  • Explain how an ultrasonic sensor operates
  • Given the components of a VEX robotics design system, update your previous program to program the ultrasonic range finder in autonomous mode to have the robot move forward, pick up a ball using the potentiometer, avoid the ball stand, and then drop the ball at the end of the court

Quiz (30-60 minutes)

Quiz on the unit


  • Check for understanding