Computer scientists at the University of Washington are devising a way for you to control your lights, your music, even your thermostat, with nothing but your Wi-Fi router, and a wave of your hand.The technology is called “WiSee,” and at first blush looks a lot like X-Box Kinect. However, because wifi flies through walls with ease, WiSee doesn’t need you gesturing in a clear line of sight to see you. The researchers built a special receiver that works with all the WiFi enabled devices in your home to detect the slight frequency changes that your movements create in the WiFi signal.“This is the first whole-home gesture recognition system that works without either requiring instrumentation of the user with sensors or deploying cameras in every room,” said Qifan Pu, a collaborator and visiting student at the UW, in the press release.Taking advantage of the Doppler effect and amplifying the ripples in the signal that your movements create, WiSee can already recognize nine different gestures. Consumers may someday use one sequence of movements as a password to get WiSee’s attention before they then command it to do their bidding.If you’re worried about looking like a great ape when you go to slyly dim the lights, take faith that WiSee already boasts a 94 percent success rate with five people in a two-bedroom apartment.