Understanding Communication Protocols in ROS2

ROS2 (Robot Operating System 2) is a powerful and flexible framework for building robot applications. One of its key features is the variety of communication protocols it offers to facilitate interaction between different parts of a robotic system. In this blog, we'll explore three primary communication protocols in ROS2: Topics, Services, and Actions. We'll also provide some ROS CLI commands and examples to help you get started.

1. Introduction to ROS2 Communication Protocols

• Overview and Importance
  • Brief introduction to ROS2 communication mechanisms.
  • Importance of understanding communication protocols in robotics applications.

2. ROS2 Topics

• Concept and Functionality
  • What are ROS2 Topics?
  • How do they enable communication between nodes?
• Practical Example
  • Walkthrough of a simple publisher-subscriber example.
• ROS CLI Commands
  • Using ros2 topic commands to list, echo, and publish topics.