A Python program pulls data from a Leap Motion using their Python API. The program communicates with a Raspberry Pi controlled robot over a WiFi network. The Raspberry Pi communicates with an Arduino via serial to control motor speeds.
https://www.youtube.com/watch?v=DTOahaXQjcM
Notes:
Fix for Leap Motion on Windows: https://community.leapmotion.com/t/leapmotion-device-not-detected-after-windows-10-update/6576
V2 Leap Motion API for Python: https://developer.leapmotion.com/documentation/v2/python/index.html