Subscribed and liked! Getting back into ROS development after a short break from academia and found this video helpful. Topic suggestion would be how to use dockers/singularity instances and how to communicate with them. For example running ROS2 on host and wanting to access ROS1 topics running in a container instance
Very helpful video, thank you! Question: Can the travel router be used without internet? I.e. solely for communication between the robot computer and base station?
Yep absolutely. Although for what it's worth I've lately had some troubles that are making me question the travel routers' ability to handle the ROS data rates... Still using them though because they are just SO practical for this!
if your pi is out in the wild using 5g/4g or in general cellular data, you'll need to set up ssh reverse tunneling to gain access to it to minimize the amount of hardware you use.
I'll try this later. I have a small NanoPi that has one ethernet and one USB port. Ethernet will attach to home network while at home or to base station (laptop) if i'm away from home. NanoPi will have a large Realtek 2.4G antenna connected to the USB port and this will be the access point. Don''t know if Netplan is also 'nmcli' but have found 'nmcli' easy to configure..
Great tutorial. I do have a question, though. What happens when you network with ROS2, but communication doesn't happen? How do you troubleshoot it? Does ROS2 create any logs?
This question is a little old but just in case, I was banging my head around this problem, then only much suffering, to find out that ufw (ubuntu's "uncomplicated" firewall) was blocking packets .. even though "ros2 multicast [send][receive]" worked fine .. stopped ufw and everything worked fine.
Humble tester here :) I skipped the travel router setup and used my home office setup which uses pfsense/unifi. I'll reconsider the travel router option if I want to make things more portable.
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
Hey i familiar with ros1 and i use roscore to start the connection between the pc master and the raspberry pi what i need to do to do the same on ros2 ?
That's one of the great things about ROS 2 - there is no roscore! or variables to set, it just works! This may change in future versions as it causes troubles for some people, but there will still not be a roscore, you may need to change a setting to enable comms. (As an aside, if you REALLY want a roscore-style approach you can check out fast-dds.docs.eprosima.com/en/latest/fastdds/ros2/discovery_server/ros2_discovery_server.html )
Amazing! I will go through the videos to learn more about ROS.
is this worth it to try? I am going to do it, should I?
Just found your videos and documentations on your web page. Thank you, I am subscribed. Please keep going :)
thanks a lot just subbed recently. keep up the great work :)
Thanks!
Muito bom seus vídeos. Saudações do Brasil!
Subscribed and liked! Getting back into ROS development after a short break from academia and found this video helpful. Topic suggestion would be how to use dockers/singularity instances and how to communicate with them. For example running ROS2 on host and wanting to access ROS1 topics running in a container instance
Instead of buying a travel router can I use my smartphone hotspot to make the dedicated network? @2:45
Very helpful video, thank you! Question: Can the travel router be used without internet? I.e. solely for communication between the robot computer and base station?
Yep absolutely. Although for what it's worth I've lately had some troubles that are making me question the travel routers' ability to handle the ROS data rates...
Still using them though because they are just SO practical for this!
if your pi is out in the wild using 5g/4g or in general cellular data, you'll need to set up ssh reverse tunneling to gain access to it to minimize the amount of hardware you use.
I'm a beginner in building ROS robot how can I use Mobile hotspot to communicate with raspberry Pi and laptop? Can you explain me pls
I'll try this later. I have a small NanoPi that has one ethernet and one USB port. Ethernet will attach to home network while at home or to base station (laptop) if i'm away from home. NanoPi will have a large Realtek 2.4G antenna connected to the USB port and this will be the access point. Don''t know if Netplan is also 'nmcli' but have found 'nmcli' easy to configure..
Thanks for sharing. I am having an error that 2 ros cannot see each other in the same wifi network. Can you help me
If I only want to simulate with gazebo on VM, should I setting like this video?
Great tutorial. I do have a question, though. What happens when you network with ROS2, but communication doesn't happen? How do you troubleshoot it? Does ROS2 create any logs?
This question is a little old but just in case, I was banging my head around this problem, then only much suffering, to find out that ufw (ubuntu's "uncomplicated" firewall) was blocking packets .. even though "ros2 multicast [send][receive]" worked fine .. stopped ufw and everything worked fine.
Humble tester here :) I skipped the travel router setup and used my home office setup which uses pfsense/unifi. I'll reconsider the travel router option if I want to make things more portable.
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
Did you find any solution?
so, this video is for who wants to use the router?
Hi I'm having a lot of trouble setting up the network with my virtual machine. Can you help me with this?
Is it possible for the development system to be Windows running WSL + Ubuntu, or do you need to have a "native" Linux system?
After I added the dev yaml file, the VM lost the ethernet connection, a little help please
what if I have raspberry pi standard linux as my default os , do i need to uninstall it?
WOW
i don't know too much about networks, but is it possible i do it with my mobile hotspot?
definitely yes with internet on mobile.
@@Shah_Khancould you please tell me the way to do it I'm extremely searching for that solution
Hey i familiar with ros1 and i use roscore to start the connection between the pc master and the raspberry pi what i need to do to do the same on ros2 ?
That's one of the great things about ROS 2 - there is no roscore! or variables to set, it just works!
This may change in future versions as it causes troubles for some people, but there will still not be a roscore, you may need to change a setting to enable comms.
(As an aside, if you REALLY want a roscore-style approach you can check out fast-dds.docs.eprosima.com/en/latest/fastdds/ros2/discovery_server/ros2_discovery_server.html )
or just use a smartphone hotspot w/ hybrid network sharing
1000