Design and Development of an Arduino-based Smart Braille Learning System
Keywords:
Arduino Uno, Assistive technology, Braille learning device, Embedded systems, Inclusive learning, Visually impaired educationAbstract
The smart Braille learning device using Arduino is developed to assist visually impaired individuals in learning the Braille alphabet and numbers interactively and affordably. Learning Braille using traditional embossed charts and books can be difficult for beginners due to limited feedback and a lack of interactivity. To address this challenge, the proposed system uses an Arduino Uno microcontroller integrated with a keyboard, push button, LED indicators, buzzer, and a 16×2 LCD to visually and functionally represent Braille characters. Each English alphabet and numeral is mapped to its corresponding six-dot Braille pattern, which is displayed using LEDs arranged in a Braille matrix. When a user presses a key, the system identifies the character, activates the appropriate LED combination, and displays the same character on the LCD for verification. A mode-selection button allows switching between alphabet and numeric modes, enhancing usability. The system was designed and tested using the Tinkercad simulation platform, ensuring accurate functionality without physical hardware implementation. Simulation results confirm reliable input detection, correct Braille representation, and real-time display output. The proposed device offers a low-cost, easy-to-use learning solution suitable for educational institutions and training centers for visually impaired learners. The system can be further enhanced with voice output, haptic feedback, and wireless connectivity to improve learning accessibility and user experience.
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