Book Image

BeagleBone Robotic Projects - Second Edition

By : Richard Grimmett
Book Image

BeagleBone Robotic Projects - Second Edition

By: Richard Grimmett

Overview of this book

BeagleBone Blue is effectively a small, light, cheap computer in a similar vein to Raspberry Pi and Arduino. It has all of the extensibility of today’s desktop machines, but without the bulk, expense, or noise. This project guide provides step-by-step instructions that enable anyone to use this new, low-cost platform in some fascinating robotics projects. By the time you are finished, your projects will be able to see, speak, listen, detect their surroundings, and move in a variety of amazing ways. The book begins with unpacking and powering up the components. This includes guidance on what to purchase and how to connect it all successfully, and a primer on programming the BeagleBone Blue. You will add additional software functionality available from the open source community, including making the system see using a webcam, hear using a microphone, and speak using a speaker. You will then learn to use the new hardware capability of the BeagleBone Blue to make your robots move, as well as discover how to add sonar sensors to avoid or find objects. Later, you will learn to remotely control your robot through iOS and Android devices. At the end of this book, you will see how to integrate all of these functionalities to work together, before developing the most impressive robotics projects: Drone and Submarine.
Table of Contents (18 chapters)
Title Page
Credits
Foreword
About the Author
About the Reviewers
www.PacktPub.com
Customer Feedback
Preface

Providing the capability to interpret your commands and have your robot initiate action


Now that your system can both hear and speak, you want to provide the capability to respond to your speech and perhaps even execute some commands based on the speech input. I will assume that you've been successful at each step in this chapter and your BeagleBone black can both speak and listen. You're going to configure the system to respond to your simple commands now.

In order to respond, you're going to edit the continuous.c code in the /home/debian/src/programs directory. You could create our own .c file, but this file is already set up in the makefile system and will serve as an excellent starting spot. I like to first make a copy of the current file into continuous.c.old. This way, I can always get back to the starting program if it is required. Then, you will need to edit the continuous.c file. It is very long and a bit complicated, but you are specifically looking for the following section in...