/mavlink/to topic does not publish anything

asked 2018-06-26 13:02:03 -0600

shairubin gravatar image


I'm using px4 + gazebo for SITL simulation

Running as follows:

px4: no_sim=1 make posix_sitl_default gazebo_iris

gazebo: roslaunch gazebo_ros empty_world.launch world_name:=~/catkin_ws/src/gazebo/worlds/iris_fpv_my_cam.world gui:=$1

Actually, my simulation works fine - using an OFFBOARD mode, I can control the drone during simulation.

The problem

  1. When trying to look into communication from MAVROS-node into px4 - i get an empty stream. (using rostopic echo /mavlink/to )
  2. On the other hand, if I look into the communication from px4 to MAVROS, i get a stream full of mavlink messages (using rostopic echo /mavlink/from), which is good.

Any idea why there are no messages from MAVROS to px4 but there are from px4 into MAVROS?

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if it will help, my code is here: https://github.com/shairubin/drone-ex...

shairubin gravatar image shairubin  ( 2018-06-27 12:18:09 -0600 )edit