Maybe I’m making a mistake but I’m trying to use the sitl of arducopter via mavros. The sitl works fine, I’m using 4.1.3 version, there is not problem here. I installed ros2(foxy) with this tutorial and mavros via ros-foxy-mavros debian package.
I run mavros by this line /opt/ros/foxy/lib/mavros/mavros_node --ros-args -p fcu_url:=tcp://10.172.156.1:5762 and in the console of ardupilot you can see that create the connection. The problem is if I run this command ros2 topic echo /mavros/battery to cath the info from the battery, I cannot receive anything. It’s the same with some others topics of the telemetry.