ROS2 Tutorial - ROS2 Humble 2H50 [Crash Course]

[@RoboticsBackEnd]

Thank you for watching! 🔥 To go further with ROS2, check out this complete and step-by-step ROS2 course 👉 rbcknd.com/ros2-for-beginners

[@blairan]

Purchased courses

[@simonclark8290]

For creating such a well written and easy to follow crash course.

[@RoboticsBackEnd]

Thank you so much Simon!

[@simonclark8290]

This course is very well structured and laid out in way that probably anyone can follow (as long as you do not skip steps). Even if you've never used Python before but have some experience with programming languages it's very straightforward to follow.

[@n-hexane8271]

You teach better than any teacher I have encounterd

[@sindhusreeanjanreddygari3074]

What you are studying

[@Goldenglow1427]

Thank you so much for providing such a great course! It's already one year since the video but I still find these contents really helpful and work perfectly on my device. I learned so much about ROS2 from this video. Definitely a great introduction course. Thank you again for providing this.

[@NexusWanderer]

It's been a while since I started to look for a good material to start studying ROS2 and this is simply brilliant. Many thanks for the course; I will definitely check the 10-hour version as well. Much appreciated!

[@AsantePE]

Done this course and bought your courses on udemy very straight to the point and great explanation of every component.

[@ginonguegang9232]

Thanks a lot for making such a great tutorial. I went thru it twice and the second time I took some notes from all your easy to follow explanations.

[@jaketmko]

a year in the future and this is still a SUPER helpful tutorial. needed this to get up to speed on a code base im working on and im excited to finally have an idea of what's happening. thanks team!

[@maton2142]

Thank you so much for such a great video. The command `ros2 topic info -v /...` is very useful; with the "-v" argument for "verbose," you can see more detailed information about the subscribers and publishers on the topic.

[@hasankivrak1969]

This is the course I was looking for. It is so intuitive and motivating to learn the fundamentals of ROS2, especially coming from ROS1. Thank you very much👍

[@gabinkundwa7215]

Thank you for a great tutorial, I am new to ROS2 but I was happy to be able to run the turtle sim and see all the changes! Keep the good work!!

[@ginonguegang9232]

Thanks!

[@tarapreethmutyala4455]

This tutorial has been really helpful in understanding the basics of ros2. Great video and amazing explanation!!!!

[@prasadjoshi6060]

My Goodness !!! This is just outstanding stuff !! What a presentation and explanation. Awesome ! Thanks a million !!👍👍👍

[@BennyHawaiiJustice]

Thank you for this course! It's very nicely structured and well explained. Great job :)

[@khyfer8122]

This crash course is amazing! Thank you so much for your time and effort! I''m looking forward to begin with the course on Udemy!

[@PFstoker]

Clear as crystal, thank you very much for this tutorial

[@navigatorpje1874]

Great tutorial! Thank you so much for your effort!

[@mrMamaboy17]

Merci infiniment pour ce cours ! Il est vraiment beginner friendly.

[@AnsaSherminS]

Thanks a lot for this excellent course.

[@controlswithmatlab6986]

This is an excellent tutorial. Thank you so much!

[@amrzakaria5290]

Great Job , Thanks a lot.

[@yousof_e]

Great tutorial. Thanks. Could you please change the blue color on terminator? It is super difficult to see. Thanks.

[@RoboticsBackEnd]

Thanks! Unfortunately I realized it too late (and cannot update an existing video on youtube), but I have changed it for future videos

[@meta_ai]

YOU ARE AMAZING!!!!!!!!!!!!!!!!!!!!!

[@wolaye159]

Thanks for the insightful tutorial, please can I request for the c++ version of the tutorial. Thanks a lot.

[@kokokambire450]

think you for this video👍

[@loadedbylarry]

Great video!

[@Mohammad-fq7iz]

From Bangladesh... ❤

[@TharinduIshan-tj2wr]

Great explaination. Thank you so much

[@Jsjskajaujjwk]

great tutorial ever

[@ehorizon28]

hey man, i love your course, im currently learning about drone programming, can you make a course about drone autopilot programming with ros2? im using px4 and i noticed there's a lack of tutorial from beginners on this topic. I will buy it if u decides to make one.

[@RoboticsBackEnd]

thanks for the feedback! Currently I have no plans to make courses on drones (not my specialty), but I might look into that in the future

[@ahsankabirnuhel4923]

Would you please provide a notes based on the each section e.g: node, tools, topic etc so that it is easy to follow along? as well as for this video also? Thanks

[@RoboticsBackEnd]

I don't have notes with this video, feel free to take your own notes and maybe share them in a comment :)

[@ahsankabirnuhel4923]

@@RoboticsBackEnd would you please give notes on your udemy ROS2 foxy/humble course if you have?

[@ahsankabirnuhel4923]

??

[@AbhishekGarg-e4p]

amazing video

[@SoroushMortazavi]

awesome

[@samynwaisser376]

A extreamly good tutorial. I have followed with the Iron version and hope to make the compleat ros for beginners cours. Up to now every thing works great but now the node dont run. I have controlled line fo line it ist absolutly the same as in your tutorial but if I press enter nothing happens, I always get: ~ros2_ws/src/my_robot_controller/my_robot_controller but nut the answer of the node. Is there any possibility to send you pictures of the screen?

[@windums560]

Could you add subtitles? Auto one is not that good. Thank you very much

[@RoboticsBackEnd]

Thanks for the feedback - I'll consider doing it!

[@sodoobayarsanaa328]

This is great

[@marvetoons1625]

Thanks for this helpful video. I have watched some tutorials and I noticed people use Raspberry pi 4 as the brains for the system but I have an ESP32 chip, can I use the Esp32 instead of the Raspberry pi?

[@RoboticsBackEnd]

It depends on the application you want to do. Sometimes ESP32 (similar as Arduino) could be enough. I answer this question in depth here: kzbin.info/www/bejne/fHeroIyJgs5-apI

[@Key_Capz_]

Nice I like how python auto builds but cmake tools extention in vs code does the same thing with c++ or am I getting ahead of myself? Your next video might cover that just saying because I hear that's why some people choose python over c++.

[@malikmaazmuhammadkhan2732]

Assalamualikum, we are a robotics enthusiast and have no idea about ros, So is this course for absolute beginners ?? Thank you Regard Maaz

[@wisnueepis3593]

are sure after we modify something we don't need to re-build the project??? or there's some trick to do automatically?

[@RoboticsBackEnd]

if you used --symlink-install with colcon build (python packages only) you don't need to rebuild a Python node after you modify it

[@wisnueepis3593]

@@RoboticsBackEnd thanks

[@dreamscometrue2782]

Can you guide how to run the gazebo on ROS2 humble? I use Raspberry pi 4. Nice to hear from you?

[@RoboticsBackEnd]

Unfortunately Gazebo won't run on Raspberry Pi (or with lots of errors). The architecture of the Pi is a bit different and not compatible with the 3D tools from ROS2. You'll have to use Gazebo on your own computer.

[@dreamscometrue2782]

@@RoboticsBackEnd Thank you for giving me the answer. Thank you again for bringing useful knowledge to everyone.

[@venkatswaraj3054]

41:11 Why we need to make the python file executable ?

[@RoboticsBackEnd]

When you build with --symlink-install it's going to use the file in your /src directly. Hence if it's not an executable, you'll get an error

[@destinyobamwonyi8865]

Hi, this course is great but building with "colcon build --symlink-install " keeps throwing easy build discouraged error. I am using ubuntu 24.04

[@kayboku7281]

Thanks for creating the course. Ive played with arduinos etc, built a few things, I just watched 2 hours of the course, is this really whats required to run things in ROS? Seems so overly complicated. I thought ROS was meant to make programming robots simple. (thats not meant to sound like a complaint, more of an an enquiry or question).

[@RoboticsBackEnd]

ROS is kind of a "framework", and basically for any framework you first need to learn quite a lot of things to get started. Then, as you are more comfortable with it, this is where you will see that it makes developing much easier and faster. Then, one thing I can agree with, is that ROS2 is clearly not an easy framework to start with. That's the main problem I try to solve in my courses :)

[@kayboku7281]

@@RoboticsBackEnd thanks for the reply!, I havnt given up! I will keep doing a few tutorial sessions every week and hopefully in a few months I should understand it.

[@abisoyeakinloye]

Hi Ed. Could you update your Udemy ROS2 courses by adding ROS2 action server and client?

[@RoboticsBackEnd]

ROS2 Actions are on my todo list! Not sure when it's going to be released though, probably during 2023

[@exusbuurn905]

Hello, I was actually able to run the python script on visual code but I wasn't able to run my_first_node by using the ./ command in terminal. I am getting some sort of error on rclpy not being recognized. When I checked the import rclpy line, I received this error: "rclpy" is not accessed Pylance What does this mean? How do I fix this error?

[@vasupathak3801]

Can you please tell whether I can use ROS2 with WSL2 instead of a dual boot or virtual machine?

[@RoboticsBackEnd]

This should work, but probably with additional config and bugs to resolve

[@evanlane1690]

It's doable. I use tmux and a windows x server to get it done but it kind of sucks. I'd rather just have a native Linux box and a docker container

[@ЕвгенийРябчунов-е9ъ]

PLEASE HELP ME! With this command "ros 2 run dynamixel_sdk_examples read_write_node" gives the error "Package 'dynamixel_sdk_examples' not found ", but it is downloaded!!! WHAT TO DO, HELP!

[@naitiknakrani]

What is change in launch system in humble compared to foxy? I have heard ros2 launch is not working properly.

[@RoboticsBackEnd]

"ros2 launch " should work fine with both Foxy and Humble. Do you have an example?

[@ekemm]

17:00

[@ganeshgovindarajan8200]

bash: ./: Is a directory , I'm error while running the python code

[@33manishkumar90]

On running the code colcon build my pc freezes completely idk why it's happening can someone help?

[@phanigamerz5199]

if you are using a virtual box,increase the amount of ram allocated

[@33manishkumar90]

@@phanigamerz5199 No i am not using vm i uninstalled ros completely and installed again and everything is fine now idk what happened earlier

[@bqt2774]

I can't install gazebo in ubuntu 22.04

[@karthickkuduva9819]

Does code differs from ros to ros2??

[@RoboticsBackEnd]

yes, you can check out my ROS Noetic crash course, project is almost the same, so you can compare the code

[@karthickkuduva9819]

@@RoboticsBackEnd can I use ros1(ros neotic) on ubuntu jammy jellyfish 22.04?

[@RoboticsBackEnd]

no, Noetic works on Ubuntu 20.04 only

[@ekemm]

40:00

[@muhammadabida7266]

Thanks a lot for providing such an amazing course. You really know how to teach stuff. You earned a subscription and I bought your course on Udemy because I want to develop ROS2 packages in C++ as well. Sir, here's to certify that you are a force for good in the universe 🎖🫡

[@RoboticsBackEnd]

Thank you so much for the kind words! Hope you enjoy the course as well

[@dreamscometrue2782]

I install VMware on my laptop to install Ubuntu. After I installed Ros2 Humble for both virtual machine and Raspberry pi4. I started testing the link between VM and raspberry with the sample node above (ROS2 Humble). I pinged rasp's IP on the VM and got a signal and at the rasp screen I pinged the ip address of the virtual machine and got a response. But when transmitting "Talker" on virtual machine it shows "Hello world 1,...." but on raspberry screen "Listener" does not receive "Hello world...". Looking forward to hearing from you. Sincerely thank you

[@RoboticsBackEnd]

Hard to really know what could be the issue. It could come from the VM, as it's another layer on top of your OS, so it could mess with the network. Also, make sure that you're publishing and subscribing to the exact same topic name.

[@nervewrecker2976]

31:38

[@maa3nmassri739]

Miss action

[@РодионЧаускин]

Lewis Eric Jones Jennifer Robinson Robert

[@EquipteHarry]

Thompson David Clark Amy Clark Gary

[@prathamdesai979]

Thanks!

[@ЕвгенийРябчунов-е9ъ]

PLEASE HELP ME! With this command "ros 2 run dynamixel_sdk_examples read_write_node" gives the error "Package 'dynamixel_sdk_examples' not found ", but it is downloaded!!! WHAT TO DO, HELP!