Scientists use the mouth as a signaling tool

Mouse and keyboards are classic examples of so-called input devices (eng. input devices), that is, tools that make it possible to control a computer. A not entirely uncommon common denominator, especially for pointing devices, is that hands and fingers are required to use them optimally. Hand pressure is something researchers at the University of Chicago want to treat with what they call Lip IO.

As the name implies, Lip IO involves the mouth, more specifically the lips and tongue. The device can be used for both output and input and consists of a special nozzle with electrodes. They can detect movements from both the tongue and lips and convert them into control signals, instead providing tactile feedback.

The project is shown in a variety of ways, including interacting with a smart door lock, controlling an electric bike’s GPS, tuning an electric guitar and playing Whac-A-Mole. For some areas of use, such as tuning a guitar or using a smart door lock, a laptop is connected as an intermediary. An Android phone was used for the bike’s GPS, Arduino boards and 5V relays were enough for the game. The report shows that most users have mastered Lip IO without prior practice, except for some calibration.

Everything from virtual reality gaming accessories to aids for people with physical disabilities are listed as future areas of use. The next step is to shrink the product to make it more discreet and more comfortable to wear and use. In addition, the researchers want to find alternatives in which the user does not have to lick the tongue of the mouth, to avoid the inappropriate sport of fellatio in public.