Ros2 topic list does not show the Create3 is publishing topics for turtebot4 lite

[Srimathi-tw]

Please provide the following information:

• OS: Ubuntu 20.04

• ROS Distro: Galactic

  Expected behaviour After following the setup instruction https://turtlebot.github.io/turtlebot4-user-manual/overview/quick_start.html with turtlebot 4 lite on typing ros2 topic list in pc it should show create 3 topics

  Actual behaviour On typing ros2 topic list it runs in an infinite loop(we are not able to see anything in logs)

To Reproduce Follow the setup with turtlebot4 lite in https://turtlebot.github.io/turtlebot4-user-manual/overview/quick_start.html

[roni-kreinin]

Can you try calling killall _ros2_daemon and then run ros2 topic list again?

[Srimathi-tw]

The above mentioned resolution works with our personal hotspot. But we want to try using corporate hotspot, so we tried following this link https://iroboteducation.github.io/create3_docs/setup/xml-config/

We used the below code

<CycloneDDS>
  <Domain>
    <Id>any</Id>
    <General>
      <NetworkInterfaceAddress>auto</NetworkInterfaceAddress>
      <AllowMulticast>false</AllowMulticast>
      <EnableMulticastLoopback>true</EnableMulticastLoopback>
    </General>
    <Discovery>
      <ParticipantIndex>0</ParticipantIndex>
      <Peers>
        <Peer Address="${ROBOT_IP}:7410"/>
      </Peers>
    </Discovery>
  </Domain>
</CycloneDDS>

and changed ${ROBOT_IP} to our custom Robot IP, but on doing ros2 topic list we only see

/parameter_events
/rosout

. Could you please help us with steps for connecting to corporate wifi?

[roni-kreinin]

Did you use the RPi4 IP or Create 3 IP for the ${ROBOT_IP}?

[Srimathi-tw]

We were using raspberry pi IP address

[roni-kreinin]

I believe for the create 3 instructions you should be using the Create 3's WiFi IP.

[Srimathi-tw]

@roni-kreinin tried create 3's ip still didn't work. Any pointers on how we can connect the bot to corporate wifi?

[roni-kreinin]

I would recommend making an issue at https://github.com/eclipse-cyclonedds/cyclonedds. They will be much more familiar with this.

[Srimathi-tw]

Thanks @roni-kreinin will close this issue then.