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RoboticsMarch 15, 2026

Getting Started with ROS 2: A Beginner's Guide

# Getting Started with ROS 2 author?: string; ROS 2 (Robot Operating System 2) is the industry-standard framework for building robot software. Unlike its predecessor, ROS 2 is built on DDS middleware, offering real-time capabilities and improved security. ## Installationgit status First, install ROS 2 Humble on Ubuntu 22.04: ```bash sudo apt install ros-humble-desktop ``` ## Your First Node Create a simple publisher node in Python: ```python import rclpy from rclpy.node import Node from std_msgs.msg import String class MinimalPublisher(Node): def __init__(self): super().__init__('minimal_publisher') self.publisher_ = self.create_publisher(String, 'topic', 10) timer_period = 0.5 self.timer = self.create_timer(timer_period, self.timer_callback) def timer_callback(self): msg = String() msg.data = 'Hello, ROS 2!' self.publisher_.publish(msg) ``` This is just the beginning — ROS 2 has a rich ecosystem of packages for navigation, perception, and manipulation.