1,goto catkin workshop dir and compiler astra_camera
$ catkin_make --pkg astra_camera

note: astra driver provide two work method, normal and
 filter. with filter driver, get better quality depth 
data but need high-performance platform , like pc.
 if you work in the ARM, suggest to use normal method. 
 you can use -DFILTER=ON / OFF to change the method.

$ catkin_make --pkg astra_camera -DFILTER=OFF

2,create astra udev rule
$ roscd astra_camera && ./scripts/create_udev_rules

3,run astra_camera
use astra 
$ roslaunch astra_launch astra.launch
use astra pro (uvc rgb )
$ roslaunch astra_launch astrapro.launch

4,you can use rviz or image_view to verify driver