ROS2 for Beginners: Build Your First Robot with ESP32 from Udemy

Welcome to "ROS2 Robotics for Beginners: Build Your First Drawing Robot," where creativity meets cutting-edge technology. This hands-on course is designed to introduce you to the exciting world of robotics using ROS2, the industry-standard Robot Operating System while creating your very own drawing robot.

Course Overview:

Are you ready to embark on a journey of innovation, exploration, and fun? This course is your gateway to the fascinating world of robotics, and it's tailored specifically for beginners. No prior robotics experience is required; all you need is enthusiasm, a desire to learn, and a curious mind.

Key Highlights:

Learn ROS2 from Scratch: We'll start from the very beginning, guiding you through the essentials of ROS2. You'll grasp the fundamental concepts, understand ROS2 architecture, and learn how to work with ROS2 topics for seamless communication.
Build a Real Drawing Robot: Imagine having your own robot that can create beautiful drawings on any surface. In this course, you'll build "Lineturtle," a customizable drawing robot capable of bringing your artistic visions to life. You'll learn to assemble the hardware, interface with servos, and mount a marker for drawing.
Joystick Control and Autonomous Movement: Discover the thrill of controlling your robot's movements using a joystick. You'll explore manual control via the joystick interface and delve into autonomous movement using ROS2's "/cmd_vel" topic, enabling your robot to follow commands.
Unleash Your Creativity: Lineturtle is not just a robot; it's a canvas for your imagination. Experiment with different patterns, designs, and colors. Learn to draw lines, and shapes, and even create your own artistic masterpieces.
Battery-Powered and Rechargeable: Lineturtle is desigcned to keep the fun going. It features a long-lasting rechargeable battery, ensuring you have plenty of time to explore, draw, and innovate.
Comprehensive Learning: Along the way, we'll cover essential topics such as motor control, servo operation, LED control, and battery monitoring. You'll gain a deep understanding of how robots work, setting a solid foundation for future robotics projects.
Access to CAD and Circuit Files: We provide you with CAD files for 3D printing and circuit files for electronics. You'll have everything you need to build Lineturtle step by step.
Community and Inspiration: Join the vibrant RoboFuntastic community. Connect with other learners, share your creations, and get inspired by the limitless possibilities of robotics.

Unlock the secrets of robotics with "ROS2 Robotics for Beginners: Build Your First Drawing Robot." Whether you're a hobbyist, a student, or just curious about the world of robotics, this course is your launchpad into a realm of creativity and exploration. Let's build Lineturtle together, draw lines, make memories, and discover the joy of robotics. Enroll now and start your robotic adventure today.

What's inside

Learning objectives

Students will learn to assemble the drawing robot using provided cad and circuit files, gaining hands-on experience in building a functional robotic system.
Command-line control mastery: learners will grasp the fundamentals of ros2 by mastering command-line control of their lineturtle robot.

Microros integration and understanding: through step-by-step guidance, students will comprehend the integration of microros into the lineturtle robot.
Unleash creativity and fun: by the end of the course, learners will have the knowledge and skills to unleash their creativity and have fun with their robots.

Students will learn to assemble the drawing robot using provided cad and circuit files, gaining hands-on experience in building a functional robotic system.
Command-line control mastery: learners will grasp the fundamentals of ros2 by mastering command-line control of their lineturtle robot.
Microros integration and understanding: through step-by-step guidance, students will comprehend the integration of microros into the lineturtle robot.
Unleash creativity and fun: by the end of the course, learners will have the knowledge and skills to unleash their creativity and have fun with their robots.

Syllabus

Basic Introduction

Introduction to Course

What is ROS

Learn to harness the power of ROS2 with hands-on installation and master the command-line tools, unlocking the gateway to robotic innovation.

ROS2 Installation

Envirnoment Setup

turtlesim simulator & rqt

Understanding Nodes

Explore ROS2 Topics

Role of Services in ROS2

What are ROS2 Parameters

Dive into the world of ROS2 with hands-on learning as you create packages and code in Python and C++. Unleash your coding creativity while mastering the language of robots.

Use of Colcon to build packages

Customized Package Creation

Publisher using C++

Subscriber using C++

Publisher using Python

Launch in ROS2

Transformation of Frames using tf2 library

Experience the enchantment of control with 'Joystick Magic,' as you effortlessly guide Lineturtle's every move. Dive into the world of Micro-ROS setup to connect your commands with the robot.

Joystick Ineterface

Setup the Microros

Microros Command Velocity Topic example

Get ready to unleash your inner engineer as we guide you through the mesmerizing process of 3D printing and circuitry. It's time to bring this remarkable robot to life, piece by piece.

Gathering Lineturtle's Essential Components

Electrifying Lineturtle: Crafting the Robot's Nervous System

In this section, we unlock Lineturtle's potential by seamlessly merging sensors and actuators with ROS2, elevating its creative capabilities.

Bringing the Body to Life with 3D Printing

Lighting the Path: A Deep Dive into Controlling LEDs

Wireless Bridge: Linking Your Robot and PC via a common WiFi

Mastering Servo Control for Precise Pen Manipulation

Revealing Power: Visualizing Battery Level

Decoding Motor Motion: Analyzing Encoder Ticks

Robot Maneuvers: Navigating with the Command Velocity Topic

Personalized Control: Customizing Joystick Configuration

Attaining Complete Mastery over Robot Control with Python Node

Perfecting the Robot Package: Launching with a Single Command

Concluding the Lineturtle Experience: What's Next?

Lineturtle Robotics: Course Recap

Lineturtle's Final Remarks

Good to know

Know what's good

, what to watch for

, and possible dealbreakers

Provides hands-on experience with ROS2, which is an industry-standard robot operating system, making it a valuable skill for aspiring roboticists

Teaches the fundamentals of ROS2 from scratch, which allows learners with no prior experience to grasp essential concepts and architecture

Includes CAD files for 3D printing and circuit files for electronics, which gives learners everything they need to build the robot step by step

Requires learners to gather essential components and craft the robot's nervous system, which may require additional purchases

Explores motor control, servo operation, LED control, and battery monitoring, which provides a deep understanding of how robots work

Covers the transformation of frames using the tf2 library, which is essential for advanced robotics applications and simulations

Activities

Be better prepared before your course. Deepen your understanding during and after it. Supplement your coursework and achieve mastery of the topics covered in ROS2 for Beginners: Build Your First Robot with ESP32 with these activities:

Review Basic Electronics Concepts

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Reinforce your understanding of fundamental electronics concepts like circuits, voltage, current, and resistance. This will provide a solid foundation for understanding the robot's hardware and wiring.

Browse courses on Electronics Fundamentals

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Review online resources and tutorials on basic electronics.
Practice solving simple circuit problems.
Familiarize yourself with common electronic components.

Brush Up on Python Programming

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Strengthen your Python programming skills, as Python is used extensively in ROS2 for creating nodes and controlling robot behavior. This will make it easier to understand and modify the provided code.

Browse courses on Python Programming

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Complete a Python tutorial or online course.
Practice writing simple Python scripts.
Review object-oriented programming concepts in Python.

Review 'A Concise Introduction to Robot Programming with ROS2'

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Read this book to gain a deeper understanding of ROS2 concepts and robot programming techniques. This will help you follow along with the course material and build your drawing robot more effectively.

View Putting Knowledge to Work on Amazon

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Read the book chapter by chapter, taking notes on key concepts.
Try out the code examples provided in the book.
Relate the book's content to the course syllabus.

Four other activities

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Experiment with Turtlesim Simulator

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Practice using the Turtlesim simulator to control a virtual turtle using ROS2 commands. This will help you become familiar with ROS2 topics, nodes, and services before working with the physical robot.

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Install and launch the Turtlesim simulator.
Control the turtle's movement using ROS2 topics.
Experiment with different ROS2 commands and parameters.

Document Your Robot Building Process

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Create a blog or video series documenting your experience building the drawing robot. This will reinforce your understanding of the assembly process and help others learn from your experience.

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Take photos or videos of each step of the robot assembly.
Write detailed descriptions of each step.
Share your documentation online.

Contribute to a ROS2 Project

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Contribute to an open-source ROS2 project by reporting bugs, writing documentation, or contributing code. This will deepen your understanding of ROS2 and help you become a more valuable member of the robotics community.

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Find an open-source ROS2 project on GitHub.
Identify a bug or feature that you can contribute to.
Submit a pull request with your changes.

Design a Custom Drawing Pattern

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Create a custom drawing pattern for your robot to execute. This will require you to use your knowledge of ROS2 and robot control to program the robot's movements.

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Design a drawing pattern on paper or using a CAD tool.
Convert the drawing pattern into a series of ROS2 commands.
Test the drawing pattern on your robot.

Career center

Learners who complete ROS2 for Beginners: Build Your First Robot with ESP32 will develop knowledge and skills that may be useful to these careers:

Hobbyist

A Hobbyist engages in an activity for pleasure. This course is specifically designed for those with the desire to build their own robot. The course provides an accessible way to learn how to use ROS2 and build a drawing robot. The course emphasizes hands-on learning and provides all the resources needed to complete the project. A hobbyist with an interest in robotics will find the course valuable and engaging. It enables one to start a personal exploration into the area of robotics.

See salaries and explore the career path for Hobbyist

STEM Student

A STEM student is studying science, technology, engineering, or math. This course can be extremely beneficial for students in these fields, particularly those interested in robotics or embedded systems. The course provides hands-on learning of ROS2, which is an industry standard, and gives a student the experience of controlling a real robot. This experience will help them understand core concepts from their studies and prepare them for more advanced work in these fields. Its beginner-friendly design means that the student can quickly start learning these concepts without any prior background.

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Robotics Engineer

A Robotics Engineer designs, develops, and tests robotic systems. This career often involves integrating hardware and software to create functional robots, which is directly addressed in this course. The course's focus on building a drawing robot using ROS2, including topics like motor control, servo operation, and sensor integration, provides a practical foundation for this kind of work. Furthermore, experience with command-line control, ROS2 topics, and using the tf2 library for transformations are fundamental components of a robotics engineer's skillset. This course gives hands-on experience with these core competencies.

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Embedded Systems Engineer

An Embedded Systems Engineer is responsible for developing the software and hardware that power embedded devices. The course's hands-on approach in creating a drawing robot, including the selection of hardware components, circuit design, and programming the robot with MicroROS, provides valuable preparation for this role. Using ROS2 to control servos, LEDs, and motors as taught in this course, is directly relevant to the work of an embedded systems engineer and helps them understand how software and hardware interplay in robotic systems. The skills in this course provide a practical background for this kind of profession.

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Robotics Software Developer

A Robotics Software Developer creates the software that controls robots. This often involves using ROS2 as explored in this course. This course provides hands-on experience with creating ROS2 nodes in both Python and C++. The curriculum covers essential topics like command-line control, using topics, and services, which are very useful skills for a robotics software developer. This course guides learners through the process of controlling the drawing robot using ROS2, which is directly applicable to the kind of work seen in robotics software development.

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Automation Engineer

An Automation Engineer designs, develops, and maintains automated systems. This course, through practical experience building a drawing robot, helps develop the core skills needed by an automation engineer. The course's coverage of topics like motor control, sensor integration, and command-line control using ROS2 give a practical foundation in automation principles. Furthermore, the experience of controlling devices and orchestrating different elements of a system using the Robot Operating System is useful for an automation engineer, especially one working with robotics.

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Mechatronics Engineer

A Mechatronics Engineer combines mechanical, electronic, and software engineering principles, and this course provides hands-on preparation. The course’s focus on building a drawing robot provides experience with integrating these different disciplines. The course teaches fundamental concepts like motor control, servo operation, sensor integration, ROS2 communication, which are directly applicable to the kind of work done by mechatronics engineers. The comprehensive approach to building a robot from scratch makes this course very relevant to the mechatronics field.

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Control Systems Engineer

A Control Systems Engineer designs and implements control systems, and this course introduces the basics of control system design. The course walks students through motor control, sensor data interpretation and using these components to control a robot. The course's coverage of command velocity topics and joystick control directly applies to the way control systems are designed. Hands-on experience with topics like encoder ticks and servo control are extremely useful in control systems engineering. The course provides a hands-on understanding of controlling a physical system.

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Research Scientist

A Research Scientist in robotics often works to develop new algorithms, systems, and hardware, and this course may be useful as an introduction to these topics. While this course is beginner-focused, it covers essential topics like ROS2, command-line control, and motor control. The practical experience gained through building a real robot may be valuable for research experiments. For instance, the work with ROS2, sensor integration, and MicroROS might help a research scientist in the implementation of new ideas. An advanced degree, like a PhD, is often required for this role.

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Hardware Engineer

A Hardware Engineer designs, tests, and develops computer systems and other physical devices. Although this course does not delve deeply into hardware design, it may be useful for a hardware engineer. It provides hands-on experience with integrating hardware components into a working robotic system. The course's topics like assembling a robot, connecting electrical components, and controlling servos and motors can be useful experience. A hardware engineer may find some value in this course by learning how software interacts with physical systems through ROS2 and MicroROS.

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Software Engineer

A Software Engineer designs, develops, and tests software systems, and while this course is not focused on general software engineering, it may be helpful knowledge. The course provides experience with programming using Python and C++. It also covers topics like command-line control and the development of ROS2 packages. Although the software in the course is embedded and used for controlling robots, the fundamental software development practices, such as using version control and creating packages, may be valuable. A software engineer who has an interest in robotics might find this course useful.

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Product Manager

A Product Manager is responsible for the strategy, roadmap, and feature definition of a product. While a product manager may not usually develop software or design hardware, this course may still be beneficial. This course can help a Product Manager gain insight and understanding about the development of robotic systems. By going through the process of assembling and coding the robot, a Product Manager learns about the complexities of robotics. This foundational understanding may be useful, especially if working with a robotics product.

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Technical Project Manager

A Technical Project Manager oversees technical projects, and this course may be useful to understand the process of completing a technical project in robotics. The course provides a full walkthrough of building a robot. This knowledge, along with an understanding of the different technologies used, may give a technical project manager more context for leading a project. The course provides an overview of topics like ROS2, embedded systems, and sensor integration, which may be useful in the planning and execution of a project.

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Technical Writer

A Technical Writer creates documentation, and while this course isn't directly related to writing, it may provide knowledge useful to a technical writer in the robotics field. Going through the course gives practical knowledge about ROS2 and the building of a robot, which could help a technical writer who documents robotics systems. The hands-on experience of working with motors, sensors, and MicroROS may help in accurately documenting related technologies. This course can serve as a way to build practical expertise.

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Science Educator

A Science Educator helps teach learners about science and technology. Although this course is not directly related to education, it may be useful to educators in robotics. The hands-on nature of the course, and the fact that it is designed for beginners, makes it easy to understand and replicate. The experience of building the robot may equip an educator with the knowledge to teach robotics to their students. The course design and material may provide inspiration for lesson plans.

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ROS2 for Beginners

Build Your First Robot with ESP32

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