Book Image

ROS Programming: Building Powerful Robots

By : Anil Mahtani, Aaron Martinez, Enrique Fernandez Perdomo, Luis Sánchez, Lentin Joseph
Book Image

ROS Programming: Building Powerful Robots

By: Anil Mahtani, Aaron Martinez, Enrique Fernandez Perdomo, Luis Sánchez, Lentin Joseph

Overview of this book

This learning path is designed to help you program and build your robots using open source ROS libraries and tools. We start with the installation and basic concepts, then continue with the more complex modules available in ROS, such as sensor and actuator integration (drivers), navigation and mapping (so you can create an autonomous mobile robot), manipulation, computer vision, perception in 3D with PCL, and more. We then discuss advanced concepts in robotics and how to program using ROS. You'll get a deep overview of the ROS framework, which will give you a clear idea of how ROS really works. During the course of the book, you will learn how to build models of complex robots, and simulate and interface the robot using the ROS MoveIt motion planning library and ROS navigation stacks. We'll go through great projects such as building a self-driving car, an autonomous mobile robot, and image recognition using deep learning and ROS. You can find beginner, intermediate, and expert ROS robotics applications inside! It includes content from the following Packt products: ? Effective Robotics Programming with ROS - Third Edition ? Mastering ROS for Robotics Programming ? ROS Robotics Projects
Table of Contents (37 chapters)
Title page
Copyright and Credits
Packt Upsell
Preface
Bibliography
Index

Web-based speech-controlled robot


The next project we will discuss is to control a robot from a web browser using speech commands. It enables teleoperation of the robot using a button interface and speech. If we are not interested in moving the robot with voice commands, we can try moving the robot using buttons.

We can assign a set of voice commands in this application, and when a voice command is given, the robot will perform the corresponding task.

In this application, we are using basic commands such as move forward, move backward, turn left, and turn right to move the mobile robot. We will demo this application using the TurtleBot simulation.

Prerequisites

We need a few things installed for the proper working of this application.

We need to install the apache2 webserver to run this application. We can install it using the following command:

$ sudo apt-get install apache2

This project is actually adapted from a project from roswebtools. The current project can send the command velocity to the...