Visual impairment poses significant and varied challenges in the daily lives of those affected. It is estimated that around 2.2 billion people worldwide have some form of visual impairment, with causes ranging from eye accidents to congenital conditions and acquired diseases. Assistive technologies (AT) therefore play a vital role in improving their quality of life, enabling them to lead active lives and participate fully in society. However, the adoption of these technologies is often hampered by factors such as the lack of public policy and the high costs associated with the development of such technologies. To address these challenges, the following article proposes the development of a low-cost device based on the use of printed circuit boards (PCBs) to assist people with visual impairment (PwVI). The device will incorporate an Ultrasonic Distance Sensor (UDS) that will trigger an audible alert when it detects an obstacle, allowing the PwVI to perceive and avoid potential risks.

The proposal is based on previous studies related to AT and aims to improve the independence and social inclusion of PwVI, especially in contexts where economic resources are limited. The implementation of this device is expected to overcome existing barriers and provide an affordable and effective solution to improve the quality of life of PwVI.