ROS Tutorials

You are starting with ROS and are wondering: what is a ROS topic ? To explain what is a ROS topic, I will use here a different approach from what you can already find on the Internet. Instead of giving you a bunch of code to write and run, I will use a real life … Read more

As you start to learn ROS, you’ve quickly discovered that everything in ROS is made with components called nodes. So, what is a ROS node ? In this post I’ll explain you the concept and the “why” behind ROS nodes. It’s important to know why you need them before you actually use them for real. … Read more

So, you have a sensor from which you read data in a ROS node, and you want to publish this data on a ROS topic. The easiest and most straightforward way to do that is simply to setup a ROS rate, and then to read and publish the data. But there is a better way … Read more