Prototype A is inspired in the setup of the braille Keyboards.

The Braille Matrix is represented by 6 Dots. Those dots are projected under 6 different buttons. Additionally are 3 more buttons, one for spacing/confirmation and two for the devices navigation. Generating a Prototype with the same setup of a braille Keyboard, allow the person to learn how to write the word as well as to memorize using a multiple selection option.