8:40 So Gazebo collapses all links connected by fixed joints into a single link. It also deletes the fixed joints. If you specified a non-zero origin in your fixed joint in the URDF, it's effectively going to be ignored, and any and all links connected by fixed joints will appear on top of each other in Rviz2. Was it really worth it to create a special case and collapse these links into one and delete joints for a performance optimization?

Out of stock everywhere.

The quality of your tutorials is so high that I watch your sponsor advertisements with great pleasure and even pay attention to them.

Really looking forward to the updated tutorials for Jazzy or a newer ROS2 version. I am stuck because I did the upgrade halfway through the tutorial series and now I can't go any further haha. I might go back and redo it all in Foxy again.

Hi, I've completed your tutorials on mobile robot and it has really helped me to get the understanding of how things work. But I dont know what should I do next after this. Any recommendations?

I think the Ubuntu link is nolonger working

Using that motor controller. Could I connect it to a relay so it activates the relays and turns the motors. Allowing me to use higher amps rather then the 2 amp setup

Just what i needed, thanks 🙏

New gazebo is far less cooperative and fussy

Still waiting for an articulated one mobile robot Nav2 article

not every hero wear a hat . thank you alot man ❤

Nice video but the editing is annoying as fuck. I know its the new trend but having them not spliced up like that would have been much better.

Can you make an object follow car using huskylens, Arduino uno, and 2 BTS7960 motor drivers, that one use for steering and other one for forward and backward

Well done. I just ordered (back ordered) mine today.

can i get the link for motor he used?

Thank you great video! I just wish we had a list of all the exact parts used.

Hello. I just started the ROS and tried to control AGV conveyor belt. What is the pathway to control hardware of the AGV from my pc? can you eloborate the pathway from start to control hardware such as conveyor belt on the AGV! I tried starting Ros master on the pc and then see i can communicate with the agv ros system. is it correct? Can you simply state here what is the right sequence of task we should do? Thanks

I hate loud keyboards.

I have a ydlidar g4 when I initialise it I get topics like scan and others and is it possible for me to slam only using my lidar topics

hey can u please tell me which code did u use as there are many code in ur repo for the arduino

Hey im using ros2 humble with ignition fortress but im not getting odom frame when i add diff drive plugin but im bale to control robot. can anyone tell me why am i not getting odom frame ?

You do great vids. The LLM speed will increase 10x with an NVMe drive.

Your channel is gold 😊

Your video is great, but I have a question. I'm working on a robot that performs a task, which I assign by calling a service from my host PC. Essentially, there's a node on the host PC acting as the server, and once the service is called, the task is assigned. The task data is then published to a topic, which is subscribed to by a node running on the Raspberry Pi. Now, I want to set up joystick control, and as you mentioned, a node needs to be running for that. However, when the robot is performing the task, manual control is not needed, so running the joystick control node doesn't seem to make sense. How should I structure my software so that a central server node is responsible for handling other tasks? Do I need to keep all nodes running all the time?

Sadly… Cheaper and Nvidia just aren’t ever in the same sentences in the real world. This thing costs more than an entire high end PC in Australia. Nano product and gigantic price.

I am facing issue in ros2 control list_controllers 18:35 , how can I solve, I have ros2 humble version

Do I want to follow this guy to build my own robot but I want my robot to look like a Roomba so I assume I have to change this model a bit but I have no idea how to do that

It would be awesome to get some practical videos with how to get started with Isaac!!

Hey is this code ros2 jazzy compatible?

Love you man, your tutorials are awesome. Thanks.

Hi Josh/community, I have a problem that I'm stuck on for several days. In the Classic Gazebo I had Model Plugins to be able to describe structures in parallel (Chains of closed links) since the urdf files do not support this type of structure due to their tree characteristic. I have searched for information on how to implement Model Plugins in Gazebo Harmonic / ROS2 Jazzy. If you have information on how I can do it or any alternative to implement structures in parallel it would be very helpful.

Thank you so much! Your blog post has cleared up some of the questions I had.

Please do more on the Nvidia board and also (Main thing) how to write custom python code (say OpenCV) to control your ROS2 robot (from your tutorial)

Can you try out VAAMAN by vicharak

Love your stuff! Super interested in a more in depth video on integrating this specific board with ROS2 Isaac

GPU-powered robotics just became more accessible! 🚀 The Jetson Orin Nano price drop is a game-changer for developers and makers. Excited to see what new projects will come out of this!

please continue the jetson nano series

Hi, how to use pgm file for localization, thanks!

I'll believe it when I see it. These things aren't very powerful

Nice video. I especially liked the explanation of what the dev kit really is at the beginning lol.

Yes, definitely create more videos about Jetson Nano and Ros2 especially. I watched major of your videos and they comprehensive structure is really time saving a lot! Basically it shown me correct directions in SLAM, Nav2, teleops etc, which was a ground breaking. Thank you for such a good content :)

Joystick doesn't run and ros2 node list has only twist_stamper and no twist_mux The topic /cmd_vel is also not published, only /cmd_vel_joy shows up on "ros2 topic list" I'm using same setup code as yours, just a different robot, Ubuntu 24.04 Jazzy Harmonic

at 17:31, why did you not share what you fixed in the background, I've reached there and stuck for the whole day. You spotted the ros_gz_bridge params issue and fixed problem with gamepad. Well, what do you mean exactly? what param issue, you didn't show what your ps aux output. Please clarify on this.

definitely want to hear more about Jetson, and its integration with Issac ROS! really looking forward to it!

at 14:20, how did you upload the code and which one? there are many code in the github link... can you please make an elaborate video on uploading the code please?

Seeing Isaac ROS based demos would be definitely interesting! ;)

Obviously series of videos on moveit2 and grasping, but i would also like to request few videos on Multi Agent systems, mainly in a completely autonomous warehouse scenario.

Thanks for your videos, I would love to see you continue with the Jetson Ros2 and Isaac. Your video caught my attention and I will share it with my researcher friends.

Hello from Ecuador, students and researchers are eager for you to continue using the Jetson with Ros Cuda and Isaac. I think you could take advantage of being one of the first and best disseminators of this wave that comes with this cheap and powerful microprocessor from the Jetson family.

Fully up for a course (paid if be) on running this new Orin board within a robot, etc..