Visually impaired and blind individuals often struggle to identify banknote values, making it hard for them to pay quickly and independently, especially at cash counters. Current tools are mostly voice-based, which are not helpful for deaf-blind users. Devices like the iBill can only read banknotes from the corners, which makes them hard to use in real situations. There is a need for a faster, easier, and more inclusive solution that helps both blind and deaf-blind people recognise banknotes without relying on sound or exact positioning.

The solution is a compact, portable banknote reader designed to fit easily into a wallet or handbag, allowing visually impaired individuals to carry and use it alongside their banknotes. Instead of using sound, the device uses a vibration-based alert system, making it suitable for use in noisy environments and by individuals who are both visually and hearing impaired. It features three colour sensors placed to read from three strategic areas of the banknote, allowing accurate identification from close contact with up to 99% detection accuracy. The device is powered by a rechargeable battery, which can be charged through a wall plug or directly from a power bank via a micro-USB port, offering greater convenience and flexibility for users.

This project introduces several key innovations that improve on current banknote readers for the visually impaired. Unlike existing devices that use a fixed slot design, this invention features an open space sensing region, making it easier to insert and position the banknote in any direction. Current devices only allow corner reading, but this solution supports all-rounded reading, allowing any part of the banknote to be scanned for accurate identification. This improves usability and speed during real-life transactions. Additionally, instead of relying on disposable batteries, the device uses a rechargeable battery that can be powered by a wall plug or power bank via micro-USB offering a more sustainable and convenient power solution. Together, these features make the device more accessible, flexible, and user-friendly for both blind and deaf-blind users.