FPGA - Based Braille Code Reader for Visually Impaired Individuals

Student, Department of Electronics and Communication Engineering, KPR Institute of Engineering and Technology, Coimbatore, India.
Student, Department of Electronics and Communication Engineering, KPR Institute of Engineering and Technology, Coimbatore, India.
Student, Department of Electronics and Communication Engineering, KPR Institute of Engineering and Technology, Coimbatore, India.
Student, Department of Electronics Communication Engineering, KPR Institute of Engineering and Technology, Coimbatore, India.
Assistant Professor III, Dept. of Electronics and Communication Engineering, KPR Institute of Engineering and Technology Coimbatore, India

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Abstract

People who have visual impairments can access better resources through assistive technologies which serve as essential tools that fulfill their specific requirements. The research presents a Braille text conversion system which operates through hardware components that use an Artix-7 FPGA. The system establishes a connection to the computer through its use of UART protocol for serial text transmission. The system decodes incoming ASCII characters through synthesizable Verilog logic which creates a mapping to standard six-dot Braille encoding. The system uses servo motor-driven actuators to create Braille output which generates tactile pins. The system clock operates at 50 MHz which enables synchronized processing while the system transmits data at a communication rate of 9600 baud. The system architecture maintains modular design which allows for scalability and enables fast processing times that meet requirements of portable real-time reading assistance devices.