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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
Author Profile Icon Carol Fairchild
Carol Fairchild
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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

Launching Baxter Simulator in Gazebo


Before launching Baxter Simulator in Gazebo, it is important to check the ROS environment variables. To start up Baxter Simulator, use the following commands to get to your Baxter catkin workspace and run your baxter.sh script with the sim parameter:

$ cd ~/baxter_ws
$ ./baxter.sh sim

The command prompt should return with the following tag appended to the beginning of the prompt:

[baxter - http://localhost:11311]

You are now talking to the simulated Baxter! At this point, check your ROS environment with the following command:

$ env | grep ROS

Within the output screen text, look for the following result:

ROS_MASTER_URI=http://localhost:11311
ROS_IP= <your workstation's IP address>

or

ROS_HOSTNAME=<your workstation's hostname>

The ROS_HOSTNAME field need not be present.

If the ROS_IP or ROS_HOSTNAME environment variables does not match the IP address of your workstation (use ifconfig to check), type exit to stop communication with the simulated...

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