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[ROS in 5 mins] 018 – What is a ROS message? Part#1

by Bayode Aderinola | Jul 8, 2018 | ROS Q&A

In this post, we will see what a ROS message is all about! We'll see how it relates to ROS nodes and topics. Let's go! Step 1: Create a Project (ROSject) on ROSDS Head to http://rosds.online and create a project named "ros_message" or whatever you like. Please ensure...

[ROS Projects] OpenAI with Moving Cube Robot in Gazebo Step-by-Step #Part4

by Miguel Angel | Jul 8, 2018 | Robotics with ROS

In this new ROS Project you are going to learn Step-by-Step how to create a robot cube that moves and that it learns to move using OpenAI environment. In this fourth video we continue we talk about the first script we need to do reinforcement learning with OpenAI....

[ROS in 5 mins] 017 – How to include a launch file inside a launch file

by Ruben Alves | Jul 7, 2018 | ROS Tutorials

Hello ROS Developers! In today's video we are going to see how to include a ROS launch file inside of another one, which is really useful specially if you are working with big projects. But before we start, if you are new to ROS and want to Learn ROS Fast, I recommend...

[ROS Projects] – My Robotic Manipulator #6 – STL Mesh file for URDF Link

by Marco Arruda | Jul 6, 2018 | Robotics with ROS

In this video we are going to set a .STL mesh file to one of the links of our robot using its URDF code. From the URDF model used in the previous videos, we are going to define a new XML MACRO to use mesh files for a given link. Up to the end of the video, we...

[ROS Q&A] 135 – How to rotate a robot to a desired heading using feedback from odometry?

by Arif Rahman | Jul 4, 2018 | ROS Q&A

In this video we are going to see how to rotate our robot based on data from odometry. We will subscribe to /odom topic to get the heading of our robot, process it, and then send a command over the /cmd_vel topic. This is a video based on the following post on...