Im not sure what this offers over good software design patterns (like composition), a simple message bus and getting the relevant libraries yourself?

Normally I don't write comments but this video was too good to leave it without one

To add to the advantages of passing a pointer to a function rather than a reference to a variable (~27:30): Pointers offer increased flexibility due to the fact that they can be null, essentially allowing for optional parameters. They can also be reassigned to different memory addresses, allowing for increased control over manipulation of data. The disadvantages are that you should make sure the pointer is not null (ptr != nullptr) before dereferencing it, and that you have to explicitly dereference the pointer (or use the "->" operator to access a member of the object pointed to) to read or assign a value. It's important to note that a reference can never be null, so they are safer and simpler to use when you don't need the increased flexibility that pointers provide.

❤

HAHAH

🤌🤌

Seven years later, still no self-driving cars…

I hit the TAB twice but nothing happens, can you please help me with that :((

Good video bro bro .

is everyone using a machine with ubuntu as main OS or will a VM also work fine? Currently I'm using a Docker container to run ubuntu with ROS on top. ROS works fine, but Gazebo is really slow. I'm kina hoping a VM will work better.

did anybody else get the error "only constructors take member initializers 17 | Landmarkmonitor(): landmarks_(){ " ?

I am new to ros , but I have a question : Is it possible that package doesn't have a launch file ? I think the service package here was the case.

Hi there, is there a way to download ROS indigo on a windows 11 system as they are no longer released along with ubuntu 14.04 this is because I need to control an AR10 robotic hand

Thank you for your videos it gives me confident that I can learn Ros easily

Thanks So useful

thank you!

great tutorial man, thanks

to many ads !

Now i think we're ready for the actionlib part ahah

Can u tell the .py code to print letter 'P' in ROS though turtlesim

During configuration setup it shows no such files or Directory...source /opt/ros/melodic/setup.bash ...what I have to do

This is really helpful, but PLEASE stop saying "um" every 1/4 s

nothing is installing it says that unable to locate package

So even if I don't buy the turtlebot, I'm gonna need to spend about 1,000 bucks to use it? Since I must not use a virtual machine 🥺

10

What actually a parameter is?

very good, thanks a lot!

Hmm

Is this still a great resource 5 years later? I don't want to find I can't follow along after the first hour.

Thank you, thank you for redoing this in Python. I was so disheartened when I realised you were doing your code in C++ in Tutorial 2.1 so this was an absolute relief. This is such a good tutorial series!

how did he open a new terminal from the cpp terminal using 'wq' ?

made my day thanks Justin

Hi, my code works when following the video, however when I run this code through VS code, my imports come underlined in blue color, saying "Import "rospy" could not be resolvedPylance" likewise the same message for the msgs import, how can I fix this error? I am using vmware workstation, and have created a workspace through there...

You really make me know where to go next.I really thank you.

Thanks a lot. Such garganguan things are often difficult to conteptualise until you see them in action, so I was struggling to undestand what ROS really was. Thank you so much, things are way more clearer now!

Ahhh so I should learn both Python and C++. Dang it.

Really great tutorial! Love it!

i bet mcakmak is turkish :D there is always a turkish, always

Does anyone know how to apply this to noetic?

Your Videos Are Truly Helpful For Beginners Like Us. Easy To Understand In Short Time With Sufficient Knowledge. Thank You Very Much.

Hi Justin i have same problem with my code I want to join data from 2 callback functions, but i dont now how to do this

Could anyone or Justin , help me find the model states for a given world .Especially Turtlebot3_world ? It would be really kind of you Thanks

how did you link this nodes to the robot, i have 2 drones flying in a gazebo simulator and want to attach the node to that specific drone

Great Video! Do you know how to use AirSim and Cartographer_ROS to builda map? I m struggling and some help will be highly appreciated. Thanks

Hi, I am doing everything that's mentioned in your video but constantly this unmet dependencies error is coming and ros indigo cannot be recognized. I have done everything that's mentioned in google to resolve this issue but still no luck. Kindly help in this regard.

Oh boy I know what I'll be doing this weekend

So helpful. Thanks a lot !

I'm Unable to install turtlebot, and I'm using ROS FOXY, how to install on it?

WILL IT WORK IN WINDOWS

Thanks a lot! These tutorials were my reference when I first started with ROS-:)