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ROS101 Tutorial

ROS101_Clearpath

By Martin Cote

After working in the terminal, gazebo and RViz, it’s time for a change of pace. For this ROS101 tutorial we’ll be detailing the basics of creating your own rqt dashboard! A dashboard is a single rqt window with one or more plugins displayed in movable, re-sizable frames. Dashboards generally consist of a number of plugins that, in combination, provide a suite of UI capabilities for working with robots and robot data.

by   -   January 21, 2015

udev_blog

By Paul Bovbel

Udev is a device manager for Linux that dynamically creates and removes nodes for hardware devices. In short, it helps your computer find your robot easily. By default, hardware devices attached to your Linux (Ubuntu) PC will belong to the root user. This means that any programs (e.g. ROS nodes) running as an unpriveleged (i.e. not root) user will not be able to access them. On top of that, devices will receive names such as ttyACMx and ttyUSBx arbitrarily based on the order in which they were plugged in. Luckily, you can solve this, and more, with udev rules.

by   -   December 12, 2014

We previously learned how to write a publisher node to move Husky randomly. BUT: what good is publishing all these messages if no one is there to read it? In this tutorial we’ll write a subscriber that reads Husky’s position from the odom topic, and graph its movements. Instead of just copy-pasting code into a text file, we’ll pull the required packages from GitHub, a very common practice among developers.

by   -   September 23, 2014

In our previous tutorial, we graduated from driving a Husky to taking on a Grizzly! Now it’s time to get down and dirty with what ROS is really made of: nodes! We will first be creating a workspace to work from, then we will write a simple publisher that will make our virtual Husky drive around randomly.

ROS101_logo

So you have had a taste of driving a virtual Husky in our previous tutorial, but now want to try something a little bigger? How about 2000 lbs bigger?

ROS101_Clearpath

In the previous ROS 101 post, we showed how easy it is to get ROS going inside a virtual machine, publish topics and subscribe to them. If you haven’t had a chance to check the out all the previous ROS 101 tutorials, you may want to do so before we go on. In this post, we’re going to drive a Husky in a virtual environment, and examine how ROS passes topics around.

ROS101_Clearpath

In the previous ROS 101 post, we provided a quick introduction to ROS to answer questions like What is ROS? and How do I get started? Now that you understand the basics, here’s how they can apply to a practical example. Follow along to see how we actually ‘do’ all of these things …

by   -   January 29, 2014

ROS101_Clearpath

Clearpath Robotics brings us a new tutorial series on ROS!

Since we practically live in the Robot Operating System (ROS), we thought it was time to share some tips on how to get started with ROS. We’ll answer questions like where do I begin? How do I get started? What terminology should I brush up on? Keep an eye out for this ongoing ROS 101 blog series that will provide you with a top to bottom view of ROS that will focus on introducing basic concepts simply, cleanly and at a reasonable pace. This guide is meant as a groundwork for new users, which can then be used to jump into in-depth data at wiki.ros.org. If you are totally unfamiliar with ROS, Linux, or both, this is the place for you!



High-Performance Autonomous Vehicles
October 14, 2017


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