Please describe your creation.
This app uses LeapMotion and Arduino Uno to create a home automation system which controls the intensity of lighting of rooms. A home floor plan is mapped to the LeapMotion coordinates to determine a particular room. While palm position controls a targeting room, raising or lowering the palm controls the intensity of lighting of the room. Visit game page here: http://wesee.itch.io/homebright. Visit hackster.io at https://www.hackster.io/wesee/homebright-f62cfb.

Programming language?
Javascript

Video of your demo? (Strongly recommended for hardware hacks.)
https://youtu.be/khbinVCvL8U