Book Image

BeagleBone: Creative Projects for Hobbyists

By : Rodolfo Giometti, Charles A. Hamilton, Richard Grimmett
Book Image

BeagleBone: Creative Projects for Hobbyists

By: Rodolfo Giometti, Charles A. Hamilton, Richard Grimmett

Overview of this book

BeagleBone is a microboard PC that runs Linux. It can connect to the Internet and run OSes such as Android and Ubuntu. You can transform this tiny device into a brain for an embedded application or an endless variety of electronic inventions and prototypes. This Learning Path starts off by teaching you how to program the BeagleBone. You will create introductory projects to get yourselves acquainted with all the nitty gritty. Then we’ll focus on a series of projects that are aimed at hobbyists like you and encompass the areas of home automation and robotics. With each project, we’ll teach you how to connect several sensors and an actuator to the BeagleBone Black. We’ll also create robots for land, sea, and water. Yes, really! The books used in this Learning Path are: 1. BeagleBone Black Cookbook 2. BeagleBone Home Automation Blueprints 3. Mastering BeagleBone Robotics

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BeagleBone: Creative Projects for Hobbyists
Rodolfo Giometti | Charles A. Hamilton | Richard Grimmett
Jul, 2017 | 17 hours 0 minutes
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Table of Contents (6 chapters)
Preface
Preface
What this learning path covers
What you need for this learning path
Who this learning path is for
Customer support
Free Chapter
1
1. Module 1
1. Module 1
1. Setting Up for the First Time
2. Basic Programming Recipes
3. Physical Computing Recipes Using JavaScript, the BoneScript Library, and Python
4. Exploring GNU/Linux Recipes Using Bash, Autotools, Debugger, and systemd
5. Basic Programming Recipes with the Linux Kernel
6. Run Faster, Run Real Time
7. Applied Recipes – Sound, Picture, and Video
8. The Internet of Things
9. The Black in Outer Space
2
2. Module 2
2. Module 2
1. Dangerous Gas Sensors
2. Ultrasonic Parking Assistant
3. Aquarium Monitor
4. Google Docs Weather Station
5. WhatsApp Laundry Room Monitor
6. Baby Room Sentinel
7. Facebook Plant Monitor
8. Intrusion Detection System
9. Twitter Access Control System with Smart Card and RFID
10. A Lights Manager with a TV Remote Controller
11. A Wireless Home Controller with Z-Wave
3
3. Module 3
3. Module 3
1. Preparing the BeagleBone Black
2. Building a Basic Tracked Vehicle
3. Adding Sensors to Your Tracked Vehicle
4. Vision and Image Processing
5. Building a Robot that Can Walk
6. A Robot that Can Sail
7. Using GPS for Navigation
8. Measuring Wind Speed – Integrating Analog Sensors
9. An Underwater Remotely Operated Vehicle
10. A Quadcopter
11. An Autonomous Quadcopter
4
Bibliography
Bibliography
5
Index
Index

Chapter 4. Vision and Image Processing

Now that your tracked platform can move around, you'll want to add a more complex sensor to provide information to it—the webcam. Using a webcam, you can allow your robot to see its environment. You'll learn how to use a powerful open source software platform called OpenCV to add powerful vision algorithms to your robotic platform.

In this chapter, you will be doing the following:

  • Connecting a webcam
  • Learning image processing using OpenCV
  • Discovering edge detection for barrier finding
  • Adding color and motion detection for targeting

Connecting a webcam to the BeagleBone Black

In order to enable computer vision, you'll need to connect a USB web camera to the USB port. Most standard USB webcams will work. This example uses a Logitech HD 720.

Here are the steps:

  1. Check if your USB webcam is connected. You'll do this using a program called guvcview. Install this by typing sudo apt-get install guvcview.
  2. Connect your USB camera and...
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