Design and Implementation of Standalone Language Independent Universal Electronic Reader for Blind
T. Sai Gautham, S. Varun Kumar, Muhammad Anwar, Nuskhan Abid, Ali Khan · 2015
Visually impaired people are always deprived of reading the conventional printed text. Available solutions so far suggest the conventional text to be converted into Braille or audio. However this is a very tedious & costly process. Moreover, these solutions are available to limited languages, and not all the conventional books can straightaway be converted into these special forms at the time of release. The proposed design, Universal Reader for Blind is addressing this concern. The OPT101 optical sensor array is used to sense the black text on white paper. TIs C2000 Delfino TMS320F28335 microcontroller will accept the sensed data through the 16 analog channels for further processing. The embedded firmware using CCS IDE is implemented which will retrieve the logic of pattern regeneration using preprogrammed static database mapping with adjustable ambient threshold. The character is regenerated using a solenoid array in combination with ULN2803 producing mechanical motion on corresponding black dot being sensed. This language independent, standalone, portable, low-cost device helps the visually impaired to read printed text directly by feeling the text while moving their hand. This will provide the complete freedom for blind people to read like a normal person does without any special training such as Braille or audio.