Setting up Voxl2 MicroDDS Communication with PX4

James KDH

Hello, I tried following this guide to set up Voxl2 MicroDDS Communication with PX4. After running the two commands given in the documentation:

apt install -y voxl-microdds-agent
voxl-configure-microdds

I don't see any uORB topics published in ROS2. I have tried using voxl-inspect-services and the micro-dds-agent is indeed running in the voxl2. Am I missing something here? Thanks!

James KDH

I am running SDK version 1.35 on starling 2.

Zachary Lowell 0

Hi @James-KDH - just to confirm have you installed ros2 foxy and the mpa-to-ros2 deb's on there as well? Those packages contain all the prebuilt ros2 messages that allow you to see the topics.

apt-get install voxl-ros2-foxy && apt-get install voxl-mpa-to-ros2

followed by voxl-configure-mpa-to-ros2 - then please do a reboot o nthe entire system and then check the output of the dds via ros2 topic list and if nothing is there please paste the following:

systemctl status voxl-microdds-agent and paste the output here.

Thanks!

James KDH

@Zachary-Lowell-0 Yes I have installed ros2 foxy and the mpa-to-ros2 deb. Running the command:

systemctl status voxl-microdds-agent

Gives this output:

Meanwhile running :

ros2 topic list

Still gives nothing: