Clap-on lights are so 1980s. Make shows us how to control any table lamp with a seemingly magical wave of your hand, and all you need is an Arduino and some simple electronics.
Not only can you turn the lamp on and off with a wave, but you can even increase and decrease the brightness by holding your hand over it and raising it upwards. All it requires is a simple Arduino circuit, and you can get all the code you need over at Make's project page below. If you're unfamiliar with Arduino, check out our beginner's guide to creating your own Arduino electronics, and see the video above for a demo of how the lamp works.