IoT-Based Braille Alphabet Input and Translator System

The blind and visually impaired group cannot use most of the cutting-edge technology that usually conveys information visually through different kinds of displays. Different solutions can help overcome this obstacle, such as the usage of sound output and tactile displays that use the Braille alphabet composed of mechanically raised dots. However, there is a considerable amount of visually impaired persons who cannot read Braille and an even larger amount of persons without visual impairment. This paper presents an IoT-based system that uses the Arduino Uno WiFi development board for reading Braille input from a <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$4 \times 4$</tex> push button matrix, two letters at a time. The system uses the <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$32 \times 8$</tex> matrix display to show the translated basic alphabet output that can be read by sighted users or to show the Braille alphabet output. It offers a quick way for the visually impaired to convey information to sighted people by typing Braille input with both hands simultaneously. The proposed system will be used to educate sighted individuals about the Braille alphabet and help reduce their learning time. It can also be used as a quick translator of Braille for sighted individuals who wish to read written Braille documents.