Lesson: 20L ESR Finding Objects (no Touching)

Printer-friendly version
Objectives: 

In this lesson, students learn how the Ultrasonic Sensors works and how to use a Wait-for-Ultrasonic Block to have Riley respond to objects without touching them.  

1) The videos in this lesson use the PC version of the EV3 programming software.  If you need a refresh on this, the video below explains the difference between what you will see in these videos and how to do the same steps with Riley and your Chromebook EV3 Programming software. If you remember this, you can skip down to Step 2):

2) Watch this video to learn how to create a Wait-for-Ultrasonic Block and have Riley say "Hello" when you wave your hand:

2) Add a forward-facing Ultrasonic Sensor to Riley and use a wire to connect it to Port 4.

3) Start the video again and pause it so you can create the same program for Riley, but using the Chromebook EV3 Programming software instead.

4) Watch this video to learn how to use a Wait-for-Ultrasonic Block to have Riley respond to objects without touching them:

5) Start the video again and pause it so you can create the same program for Riley, but using the Chromebook EV3 Programming software instead.

6) Watch this video animation to learn how to use the Ultrasonic Sensor to exit a Loop block:

6) Start the video again and pause it so you can create the same program for Riley, but using the Chromebook EV3 Programming software instead.

7) Watch this video animation to learn how the Ultrasonic Sensor uses sounds waves to measure distance:

8) Create you own program for Riley using the Ultrasonic Sensor to repsond to an object.

9) Answer these questions:

What does the Ultrasonic Sensor do?
How does it work?

 

 

Scope & Sequence: 
HW Platform: 
SW Platform: 
Interactivity Style: