Advanced SMS System for Blind People Using Braille Pad

The ability to communicate through text messages is a fundamental aspect of modern life. However, for visually impaired individuals, interacting with text-based mobile services such as Short Message Service (SMS) can be a significant challenge. This research proposes an advanced SMS system that utilizes a Braille pad interface to enable blind users to send and receive text messages independently and efficiently. The system is designed with a refreshable Braille display that dynamically converts incoming SMS messages into tactile Braille characters. Users can read these messages through touch, offering an intuitive and accessible method for message consumption. For outgoing messages, the system provides multiple input options including a Braille keypad and speech-to-text functionality, catering to users with varying levels of Braille literacy and comfort with technology. The system is powered by a micro controller and incorporates a GSM module for SMS transmission and reception. The design emphasizes low cost, portability, and ease of use to ensure widespread applicability in both urban and rural contexts.