Cerebral palsy patient develops TiX - a support panel for computer use

TiX is an iconographic combinatorial keyboard that allows the typing of any letter, number, symbol or command on a conventional keyboard using only nine buttons, which are activated in double sequences. Thus, every two different buttons pressed produce one character typing. In this way, the keyboard can have large keys and greater spacing between them, allowing its use by people with little motor coordination, or even with their feet or stumps. It has touch-sensitive keys instead of mechanical buttons, which allows the user to activate them without force, with just a light touch. Despite this characteristic, it is equally robust in terms of rougher touches.
The device also includes the possibility to control the mouse pointer.
It can be optionally controlled through any external assistive trigger, meeting the demand for the use of the device by people with more severe functional limitations, such as quadriplegics. In this operating mode, the lights on each key turn on alternately, scanning, and the user clicks the trigger to activate the desired key when it is lit, rather than physically touching the panel.
These characteristics have made TiX an innovative and unique assistive product in the world, as it serves a wide range of people with different disabilities and allows unrestricted use of the computer, including internet browsing, access to social networks, use of text editors and even games, all this without the need to install any specific software.

Adapted from: https://tix.life/historia/
https://www.youtube.com/watch?v=gpcIgboBIls