Design and implementation of an affordable braille reader for converting PDF text into refreshable braille output

Abstract

This project demonstrates the development and the design process of an Electronic Braille Module Display which is affordable and user friendly. Additionally, it also broadens the accessibility for the visually impaired people. The processing unit, which is Raspberry Pi in our case, controls solenoid for Braille output. It works real time by translating digital texts (PDFs) into braille output. The process of hardware design emphasises on low-cost ensuring reliability and suitable for the education for the visually impaired people. The validation of functionality confirms the fast refreshing, tactile feedback. This project not only addressed the high priced barrier of existing braille modules but also promotes the braille literacy among the visually impaired people across the globe.