[mavros] mavros startup Guide

First Interface for starting simulation , Open the front-end simulation port
stay prometheus Just start next ！

cd prometheus_px4
make amovlab_sitl_default gazebo

Then start roscore

roscore

Start mavros

roslaunch mavros px4.launch fcu_url:="udp://:[email protected]:14557"

And then Start ros Just fine

cd src
rosrun demo demo_node