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Module 1: ROS 2 Nervous System

Welcome to the ROS 2 Nervous System module. In this module, you'll learn the fundamentals of ROS 2 architecture and communication patterns.

Learning Objectives​

By the end of this module, you will be able to:

  • Understand ROS 2 architecture and core concepts
  • Create and manage nodes, topics, services, and actions
  • Implement publisher/subscriber patterns
  • Work with service calls and action clients
  • Build basic robot communication systems

Overview​

ROS 2 (Robot Operating System 2) provides the communication infrastructure for robotic systems. This module covers the essential components that form the "nervous system" of a robot, enabling different software components to communicate effectively.

Topics Covered​

  • ROS 2 architecture and middleware
  • Nodes and processes
  • Topics and message passing
  • Services and request/response patterns
  • Actions and goal-oriented communication
  • Quality of Service (QoS) settings
  • Launch files and system composition

Prerequisites​

  • Basic Python or C++ programming skills
  • Understanding of Linux command line
  • Familiarity with basic robotics concepts

Let's begin by exploring the ROS 2 architecture and how nodes communicate with each other.