ROS2 (Foxy-Humble) For Beginners I: Basics/ Motion & Lasers

About Course

Learn ROS2 (Foxy-Humble) for Beginners: Master the basics of ROS2, from installation to creating workspaces, packages, and writing programs with ROS. This free course from Udemy covers key concepts including motion control, laser scanners, and robot cleaner applications.

Discover the differences between ROS2 and its predecessor ROS1. This course is perfect for experienced ROS users and beginners.

Learn how to use ROS2 effectively for robotics applications including mobile robots, robotics arms, unmanned aerial systems, drones, self-driving cars, and more.

**This free course covers:**

ROS2 Installation
ROS2 Workspaces
ROS2 Packages
ROS2 Programming (C++ and Python)
ROS2 Motion Control (Python and C++)
ROS2 Laser Scanners
ROS2 Robot Cleaner Application
ROS2 Data Distribution Service (DDS)
ROS2 Computation Graph Concepts

**Prerequisites:**

Familiarity with ROS1 concepts
Knowledge of C++ and/or Python programming languages
Basic understanding of Linux Ubuntu Operating System

**Enroll now and start your ROS2 journey!**

Install ROS2 on Ubuntu
Recognize the concepts of ROS2 and its ecosystem
Understand the difference between ROS1 and ROS2
Recognize the features of Data Distribution Service (DDS) used in ROS2
Create ROS2 workspaces and packages
Develop programs with ROS2 (C++ and Python)
Execute applications using ROS2
Practice ROS2 Computation Graph Concepts using Hands-on with Turtlesim

Course Content

Introduction

A Message from the Professor
– ROS2 Course Overview

06:30
Course Material Download Link

00:00

ROS2 Installation

ROS2 Design Concepts

ROS2 Ecosystem and Filesystem

Getting Started ROS2 Computation Graph with Turtlesim

Overview of Topics Publishers and Subscribers Python and C in ROS2

NEW Write a PublisherSubscriber Application from Scratch in ROS2

ROS2 Services Python and C

ROS1 Bridge

New ROS2 Motion

New Build a Robot Cleaning Application using ROS2

New ROS2 Perception with Laser Scanner Theory Drivers and Programming

– Fundamental Concepts of Laser Scanners

15:38
– Basic Concepts of ROS2 Drivers for Laser Scanners Case of Hukoyo Scanner

04:04
– Install and Execute the ROS2 Driver of Hukoyo URG 04LX Laser Scanner

06:45
– Analyse the scan Topic in ROS2 from a Laser Scanner

03:50
– Visualize the scan topic on RVIZ2

04:07
– Record and Play the Laser Scanner Topic with ROSBAG in ROS2

08:45
– Subscriber to the Scan Topic and Extract Statistics of Obstacles

13:55
– Obstacle Avoidance using a Laser Scanner in Python

08:34

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About Course

What Will You Learn?

Course Content

Introduction

A Message from the Professor

– ROS2 Course Overview

Course Material Download Link

ROS2 Installation

– ROS 2 Platforms and Releases

– 2023HUMBLE ROS2 Humble Installation Made Easy A StepbyStep Guide

– 2022FOXY Install Ubuntu 2004 on a Virtual Machine

– 2022FOXY Install ROS2 Foxy on Ubuntu 2004

– Install ros1bridge and ROS Neotic in conjunction with ROS

ROS2 Design Concepts

– History of ROS2

– ROS2 Design Goals

– What is DDS

– ROS2 over DDS

– Differences between ROS1 and ROS2

ROS2 Ecosystem and Filesystem

– Create a ROS2 overlay workspace

– Create a ROS2 package for C

– Build a C Node and Execute it

Getting Started ROS2 Computation Graph with Turtlesim

– Running Turtlesim

– ROS2 Computation Graph in Action

– Showing the content of ROS2 Messages

– ROS2 Node Information For Turtlesim

– ROS2 rqt

Overview of Topics Publishers and Subscribers Python and C in ROS2

– Section Overview

– ROS2 Example Code

– Publisher in ROS2 with Python old school version

– Publisher in ROS2 with Python objectoriented and local function versions

– Publisher in ROS with C oldschool not composable

– Publisher in ROS with C objectoriented and lambda function versions

NEW Write a PublisherSubscriber Application from Scratch in ROS2

– PublisherSubscriber Coding Steps

– Write a Publisher in Python from Scratch

– Write a Subscriber in Python from Scratch

– Write a Publisher and Subscriber in C

ROS2 Services Python and C

– Define a Service File in ROS2

– Get Demos Code from ROS2 GitHub Repository

– Services in ROS2 Python

ROS1 Bridge

– ROS1 Bridge Demo with Turtlesim

New ROS2 Motion

– Going from Talker Node to Velocity Publisher Node

– Moving Forward with no stopping condition

– Move Forward controlling the traveled distance with time

– Analyzing and Testing the Move Forward Method

– Rotate Motion

New Build a Robot Cleaning Application using ROS2

– RoboCleaner App Overview

– Develop a Robot Pose Subscriber

– Move Forward with Distance Control using Pose Callback

– Rotate with Orientation Control using Pose Callback

New ROS2 Perception with Laser Scanner Theory Drivers and Programming

– Fundamental Concepts of Laser Scanners

– Basic Concepts of ROS2 Drivers for Laser Scanners Case of Hukoyo Scanner

– Install and Execute the ROS2 Driver of Hukoyo URG 04LX Laser Scanner

– Analyse the scan Topic in ROS2 from a Laser Scanner

– Visualize the scan topic on RVIZ2

– Record and Play the Laser Scanner Topic with ROSBAG in ROS2

– Subscriber to the Scan Topic and Extract Statistics of Obstacles

– Obstacle Avoidance using a Laser Scanner in Python

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– Publisher in ROS2 with Python   objectoriented and local function versions