Raposa's profile - activity

Hello everyone,

Does anyone know if it is possible in ros2 to directly start from launch file a simple node that publishes a message?

In ROS1 it was easily possible like this:

<node pkg="rostopic" type="rostopic" name="rostopic" args="pub {pub args}"/>

(reference from: https://answers.ros.org/question/230465/publish-to-topic-via-launch-file/)

I made a few tries in ROS2 adding an action for a node with similar parameterization in my launch description, but I don't really understand in this case what is the correct package and what is the executable for ros2 (or if it is not possible at all).

Of course I know it would be possible to define my own node that does that, instead of putting all in the launch file, but if I can avoid the added overhead as it was possible in ros1, it would be preferable.

Would anyone have a simple working example of this?

ros2 topic pub from launch file Hello everyone, Does anyone know if it is possible in ros2 to directly start from launc

Changing default namespace in ROS2 Hi everyone, Does anybody know if there is an easy way to set a namespace for all th