Lesson: 20L ESR Turning with the Gyro Sensor

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In this lesson, students learn how the Gyro Sensor works and how to use a Wait-for-Gyro Block to have Riley reliable, repeatable turns.  

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 use a Wait-for-Gyro Block to attempt to have Riley turn 90 degrees:

3) Add a top-mounted Gyro Sensor to Riley (with the arrows visible when looking down on Riley) and use a wire to connect it to Port 2.  You can simplying add it to the side of the brick as show in these photos.

4) Start the video again and pause it so you can create the same program for Riley. 
NOTE: The video uses a PC version of the EV3 programming software, so you will need to use your knowledge of the Chromebook version to create the same blocks and have Riley turn. 

5) Watch this video to learn how to adjust values in a Wait-for-Gyro Block to have Riley turn 90 degrees reliably:

6) Watch this video animation to learn how the Gyro Sensor uses an electro-mechanical system to sense when it is turning:

7) Answer these questions:

What does the Gyro Sensor do?
Why is turning with the Gyro Sensor more reliable than turning with time or rotations?


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