You can invoke the Leap Motion controller manger by executing the following command:
$ sudo LeapControlPanel
If you want to start just the driver, you can use the following command:
$ sudo leapd
Use this command to restart the driver:
$ sudo service leapd stop
If you are running the Leap control panel, you can see an additional menu on the left-hand side of the screen. Select the Diagnostic Visualizer to view the data from Leap Motion:
When you click on this option, a window will pop up in which you can see your hand, and figures get tracked when you put your hand over the device. You can also see the two IR camera views from the device. Here is the screenshot of the Visualizer application.
You can quit the driver from the same drop-down menu, too:
You can interact with the device and visualize the data here. If everything is working well, we can proceed to the next stage: installing ROS driver for the Leap Motion.