Kickstarter-shunned startup Lockitron recently announced its system for networking its deadbolt attachment for use with smartphones, and it’s quite clever. The device is connected to the internet via an Electric Imp wi-fi chip, but without a screen or input interface, selecting connection preferences poses an issue. A smartphone app allows users to input their network information which is then translated into flashes of light played back to a sensor on the Lockitron itself. This computer-readable data transmission could be applied across many industries including as a part of customer loyalty programs or out of home installations, giving the slightest bit of tactile interaction back in an otherwise wireless world.