A while ago, I built a PICAXE-based Touchless Sensor Controlled Robot that used a hand movement-tracking Leap Motion sensor to drive. Unfortunately, that robot needed to be plugged into a computer to function, which limited its usefulness. To fix this, I decided to go wireless with a Particle Photon-based robot.
This robot also supports keyboard control, so if you don't have a Leap Motion or don't want to shell out $80 USD for it, you can easily use your keyboard instead.
To build this Wi-Fi Leap Motion robot you will need: