AutonomyLab/ardrone_autonomy — pull request #2 by younata (2012-08-01 05:50:30+00:00)
Title: Added magnetometer, pressure, temperature, and wind speed information to new message navdata2

Added a new message: ardrone/navdata2
This contains navdata information from sensors available only to the ARDrone 2 (though, not sure about wind speed).

I also added checking for subscribers to some of the publishers. navdata, navdata2, image_raw, front/image_raw, and bottom/image_raw have this optimization added.