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Introduction to ROS 2

The "Nervous System" of Robots​

Just as a biological nervous system transmits signals between the brain (AI) and the body (sensors/actuators), ROS 2 serves as the communication backbone for modern robots.

Installation​

Prerequisites​

  • Ubuntu 22.04 LTS (Jammy Jellyfish)

Setup Steps​

  1. Set locale:

    locale  # check for UTF-8
    sudo apt update && sudo apt install locales
    sudo locale-gen en_US en_US.UTF-8
    sudo update-locale LC_ALL=en_US.UTF-8 LANG=en_US.UTF-8
    export LANG=en_US.UTF-8

  2. Add ROS 2 apt repository... (Refer to official docs for up-to-date steps)

  3. Install ROS 2 Humble:

    sudo apt install ros-humble-desktop

Verifying Installation​

Run the classic talker/listener example:

ros2 run demo_nodes_cpp talker