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BeagleBone Robotic Projects

You're reading from   BeagleBone Robotic Projects Developer or hobbyist, you'll love the way this book helps you turn the BeagleBone Black into a working robot. From listening and speaking to seeing and moving, we'll show you how ‚Äì step by step.

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Product type Paperback
Published in Dec 2013
Publisher Packt
ISBN-13 9781783559329
Length 244 pages
Edition 1st Edition
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Author (1):
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Richard Grimmett Richard Grimmett
Author Profile Icon Richard Grimmett
Richard Grimmett
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Table of Contents (18) Chapters Close

BeagleBone Robotic Projects
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
1. Getting Started with the BeagleBone Black FREE CHAPTER 2. Programming the BeagleBone Black 3. Providing Speech Input and Output 4. Allowing the BeagleBone Black to See 5. Making the Unit Mobile – Controlling Wheeled Movement 6. Making the Unit Very Mobile – Controlling Legged Movement 7. Avoiding Obstacles Using Sensors 8. Going Truly Mobile – Remote Control of Your Robot 9. Using a GPS Receiver to Locate Your Robot 10. System Dynamics 11. By Land, Sea, and Air Index

Connecting the USB camera to the BeagleBone Black and viewing the images


Our first step in enabling computer vision is connecting the USB camera to the USB port. I have a new Logitech HD 720 camera as my example.

Prepare for lift off

To access the USB webcam, I like to use a program called guvcview. Install this by typing sudo apt-get install guvcview.

Engage thrusters

Connect your USB camera and make sure your LAN cable is plugged in. Then apply power to the BeagleBone Black. After the system is booted, you can check to see if the BeagleBone Black has found your USB camera. Go to the /dev directory and type ls. You should see the output as shown in the following screenshot:

Look for the video0 device, the webcam. If you see it, the system knows your camera is there.

Now let's use guvcview to see the output of the camera. Since this will need to output some graphics, you either need to use a monitor connected to the board as well as a keyboard and a mouse, or you can use vncserver. If you are...

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