Book Image

Mastering ROS for Robotics Programming - Second Edition

By : Jonathan Cacace, Lentin Joseph
Book Image

Mastering ROS for Robotics Programming - Second Edition

By: Jonathan Cacace, Lentin Joseph

Overview of this book

In this day and age, robotics has been gaining a lot of traction in various industries where consistency and perfection matter. Automation is achieved via robotic applications and various platforms that support robotics. The Robot Operating System (ROS) is a modular software platform to develop generic robotic applications. This book focuses on the most stable release of ROS (Kinetic Kame), discusses advanced concepts, and effectively teaches you programming using ROS. We begin with aninformative overview of the ROS framework, which will give you a clear idea of how ROS works. During the course of this book, you’ll learn to build models of complex robots, and simulate and interface the robot using the ROS MoveIt! motion planning library and ROS navigation stacks. Learn to leverage several ROS packages to embrace your robot models. After covering robot manipulation and navigation, you’ll get to grips with the interfacing I/O boards, sensors, and actuators of ROS. Vision sensors are a key component of robots, and an entire chapter is dedicated to the vision sensor and image elaboration, its interface in ROS and programming. You’ll also understand the hardware interface and simulation of complex robots to ROS and ROS Industrial. At the end of this book, you’ll discover the best practices to follow when programming using ROS.
Table of Contents (22 chapters)
Title Page
Copyright and Credits
www.PacktPub.com
Contributors
Preface
Index

Summary


In this chapter, we mainly covered interfacing a DIY autonomous mobile robot to ROS and the Navigation package. We looked at an introduction to this robot and the necessary components and connection diagrams. We looked at the robot firmware and saw how to flash it into the real robot. After flashing the firmware, we learned how to interface it to the ROS and saw the Python nodes for interfacing the LaunchPad controller in the robot and the nodes for converting twist messages to motor velocities and encoder ticks to odom and tf.

After discussing the interconnection of the Chefbot nodes, we covered the C++ port of some important nodes for odometry calculation and the base controller node. After discussing these nodes, we looked at detailed configurations of the ROS Navigation stack. We also did gmapping and AMCL and looked at a detailed description of each option in RViz for working with the Navigation stack. We also covered obstacle avoidance using the Navigation stack and worked with...