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ROS Robotics By Example, Second Edition

You're reading from   ROS Robotics By Example, Second Edition Learning to control wheeled, limbed, and flying robots using ROS Kinetic Kame

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Product type Paperback
Published in Nov 2017
Publisher Packt
ISBN-13 9781788479592
Length 484 pages
Edition 2nd Edition
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Authors (3):
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Dr. Thomas L. Harman Dr. Thomas L. Harman
Author Profile Icon Dr. Thomas L. Harman
Dr. Thomas L. Harman
Lentin Joseph Lentin Joseph
Author Profile Icon Lentin Joseph
Lentin Joseph
Carol Fairchild Carol Fairchild
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Carol Fairchild
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Toc

Table of Contents (12) Chapters Close

Preface 1. Getting Started with ROS 2. Creating Your First Two-Wheeled ROS Robot (in Simulation) FREE CHAPTER 3. Driving Around with TurtleBot 4. Navigating the World with TurtleBot 5. Creating Your First Robot Arm (in Simulation) 6. Wobbling Robot Arms Using Joint Control 7. Making a Robot Fly 8. Controlling Your Robots with External Devices 9. Flying a Mission with Crazyflie 10. Controlling Baxter with MATLAB© Index

Creating ROS nodes on Arduino or Raspberry Pi


Arduino and Raspberry Pi are two of the most popular embedded systems on the market today. Sometimes, their names and capabilities are discussed interchangeably, but each platform has its own unique capabilities and usage. In robotics, it is important to know the merits of each of these powerful devices and how each one can be used with ROS to inherit the advantages of ROS.

Rosserial defines the protocol for ROS communication over serial transmission lines to ROS nodes running on microcontrollers or single-board computers. Standard ROS messages are serialized/deserialized in a prescribed format, and topics and services are multiplexed for serial ports or network sockets. For low-level details of this protocol, refer to http://wiki.ros.org/rosserial/Overview/Protocol.

In the following section, the capability of rosserial is demonstrated in an example program using Arduino and an ultrasonic sensor.

Using Arduino

The Arduino board contains a microcontroller...

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