Book Image

ROS Robotics By Example, Second Edition - Second Edition

By : Carol Fairchild, Lentin Joseph, Dr. Thomas L. Harman
Book Image

ROS Robotics By Example, Second Edition - Second Edition

By: Carol Fairchild, Lentin Joseph, Dr. Thomas L. Harman

Overview of this book

ROS is a robust robotics framework that works regardless of hardware architecture or hardware origin. It standardizes most layers of robotics functionality from device drivers to process control and message passing to software package management. But apart from just plain functionality, ROS is a great platform to learn about robotics itself and to simulate, as well as actually build, your first robots. This does not mean that ROS is a platform for students and other beginners; on the contrary, ROS is used all over the robotics industry to implement flying, walking and diving robots, yet implementation is always straightforward, and never dependent on the hardware itself. ROS Robotics has been the standard introduction to ROS for potential professionals and hobbyists alike since the original edition came out; the second edition adds a gradual introduction to all the goodness available with the Kinetic Kame release. By providing you with step-by-step examples including manipulator arms and flying robots, the authors introduce you to the new features. The book is intensely practical, with space given to theory only when absolutely necessary. By the end of this book, you will have hands-on experience on controlling robots with the best possible framework.
Table of Contents (18 chapters)
ROS Robotics By Example Second Edition
Credits
About the Authors
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface
Index

Summary


This chapter has described ROS interfaces for a number of external devices used for robot control. The advantages of ROS extend to these types of interfaces, as it is evident in the common method and message structure used across similar devices. For game controllers, a custom interface was created using an Xbox 360 controller for the Turtlesim simulation. The buttons and axes for the Xbox 360 controller were mapped so that we could select a button and axes to use for Turtlesim control. A Python script was shown that caused the turtle to move when a joystick was moved or a certain button was pressed.

Android devices can also provide a common ROS interface for controlling robots. We looked at some instructions for installing the software and tools to set up a ROS-Android development environment. We also looked at the key terminology for Android development.

Embedded systems such as the Arduino and Raspberry Pi are often used for controlling robots and interfacing to sensors. ROS nodes...