Design and Implementation of an Efficient and Portable Refreshable Braille Display
Abstract
This capstone project addresses a significant accessibility barrier: the prohibitive cost of providing braille in public spaces. Because traditional embossed paper is expensive to produce and requires complete reprinting whenever information changes, it imposes continuous financial burdens on organizations. To resolve this, we engineered a portable, battery-operated refreshable braille display featuring 20 custom-fabricated cells driven by an STM32 microcontroller. The integrated electronic, software, and mechanical systems successfully achieved 100% accuracy across data encoding, transmission, and tactile output. Ultimately, this prototype demonstrates that cost-effective, dynamic braille technology is a viable reality for businesses and public institutions.
Design and Implementation of an Efficient and Portable Refreshable Braille Display
This capstone project addresses a significant accessibility barrier: the prohibitive cost of providing braille in public spaces. Because traditional embossed paper is expensive to produce and requires complete reprinting whenever information changes, it imposes continuous financial burdens on organizations. To resolve this, we engineered a portable, battery-operated refreshable braille display featuring 20 custom-fabricated cells driven by an STM32 microcontroller. The integrated electronic, software, and mechanical systems successfully achieved 100% accuracy across data encoding, transmission, and tactile output. Ultimately, this prototype demonstrates that cost-effective, dynamic braille technology is a viable reality for businesses and public institutions.