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

What is the Arduino-ROS interface?


Most of the communication between PC and I/O boards in robots will be through UART protocol. When both the devices communicate with each other, there should be some program in both the sides which can translate the serial commands from each of these devices. We can implement our own logic to receive and transmit the data from board to PC and vice versa. The interfacing code can be different in each I/O board because there are no standard libraries to do this communication.

The Arduino-ROS interface is a standard way of communication between the Arduino boards and PC. Currently, this interface is exclusive for Arduino.

We may need to write custom nodes to interface other I/O boards.

We can use the similar C++ APIs of ROS used in PC in Arduino IDE also, for programming the Arduino board. Detailed information about the interfacing package follows.

Understanding the rosserial package in ROS

The rosserialpackage is a set of standardized communication protocols implemented...