ROS Resources: Documentation | Support | Discussion Forum | Index | Service Status | ros @ Robotics Stack Exchange
Ask Your Question
0

ROS 2 Dashing Topics Not Received on Remote PC

asked 2020-09-03 16:34:00 -0500

jbot2020 gravatar image

Hi there, I have installed ROS2 Dashing on a Ubuntu 18.04 laptop (remote pc), and ROS2 Dashing on a Turtlebot3 Waffle Pi with Ubuntu Server 18.04. When running the bringup instructions (https://emanual.robotis.com/docs/en/p...) there are no errors, and the all needed functionality of ROS2 works on the Waffle Pi. However, it appears that messages / topics / data are not being transmitted to the remote pc.

When I run ros2 topic list I see all the topics on the waffle pi, but only the default two on the remote pc. the ROS_DOMAIN_ID is set to 30 on both devices. I am successfully connected via ssh on a static ip.

If anyone has any insight on why messages / topics are not coming through, I would really appreciate it.

edit retag flag offensive close merge delete

Comments

Any Solutions found ?.... I am having the same issue with the ROSBOT.

Jarvis19 gravatar image Jarvis19  ( 2020-10-02 05:35:41 -0500 )edit

Hi any solution found?? Also did you try ROS1 Kinetic on waffle pi with Ubuntu server 18.04 on PC? I am having connection lost between both after few seconds. Any recommendations on the combination of selection of OS on waffle pi and PC. Many thanks

syed yunas gravatar image syed yunas  ( 2021-04-25 23:01:21 -0500 )edit

1 Answer

Sort by ยป oldest newest most voted
0

answered 2021-04-26 09:40:32 -0500

jbot2020 gravatar image

Hey again, sorry for the nonresponse but I did actually find the issue.

The issue was a firewall issue. Unfortunately I do not know the exact rule that was causing the issue but to test I temporarily disabled the firewall on the robot and on the laptop and it started working.

This can be done with the command sudo ufw disable But of course this isn't a great long term solution for obvious reasons, if you have time to add rules back in until you hit the one that breaks it that would be best.

Goodluck!

edit flag offensive delete link more

Question Tools

1 follower

Stats

Asked: 2020-09-03 16:34:00 -0500

Seen: 978 times

Last updated: Sep 03 '20