Inspiration: We were inspired by a quora post while searching for unique projects that involved working with Arduino and adding value to healthcare. We analyzed the fact that although most visually-impaired people can use the text to audio applications to interpret text, there are a number of individuals who are medically "deafblind. "
What it does: When the PDF is uploaded in the web application, Legitur Digitos Braille, triggers a request which converts the PDF text into string characters that are mapped to the corresponding braille alphabetical representation (to get an accurate reading). This is represented by the LEDs that light up.
How we built it: We first worked on building the web application, where the PDF is uploaded using Angular.js. Then we made a representation of the "braille system of raised dots" using LED lights. Finally, we built the server in Python flask which connected the Arduino C code to Angular.
Challenges we ran into: The first challenge we ran into was building the braille system of raised dots. This is a set of 6 dots where an alphabet is represented when at least one of the dots is raised. We could not find a component that absolutely mimicked this functionality, and as a result, we had to improvise. We brainstormed and thought of different ways to achieve this, and finally decided to use LED lights for the prototype presentation. This seemed contradictory since we were building a product for visually-impaired people, and they could not see the LED lights, but we thought it best for the presentation.