This Kickstarter campaign just launched and has instantly climbed to just under its $35,000 goal. (By the time you read this, it will almost certainly have surpassed it.) Knocki is a small circular device that looks a little bit like a smoke detector that allows users to control everything in their home the same way—by knocking. Placed on a wood table, granite countertop, wall, or basically any other surface, Knocki transforms the surface into a remote control of sorts, activated by specific series of knocks. The possibilities are endless—you can dim the lights, turn up the heat, call your phone, turn on the TV, lower the blinds, and more.