Abstract
Nowadays, blind or impaired people are facing a lot of problems in their daily life since it is not easy for them to move, which is very dangerous. There are about 37 million visually impaired people across the globe according to the World Health Organization. People with these problems mostly depend on others, for example, a friend, or their trained dog while movıng outside. Thus, we were motivated to develop a smart stick to solve this problem. The smart stick, integrated with an ultrasonic sensor, buzzer and vibrator, can detect obstacles in the path of the blind people. The buzzer and vibration motor are activated when any obstacle is detected to alert the blind person. This work proposes a low-cost ultrasonic smart blind stick for blind people so that they can move from one place to another in an easy, safe and independent manner. The system was designed and programmed using C language.
 Keywords: Arduino Uno, Arduino IDE, ultrasonic sensor, buzzer, motor.
Highlights
People with visual impairment are the individuals who find it hard with healthy eyes to acknowledge the smallest detail
This study proposes a new technique for designing a smart stick to help visually impaired people to navigate safely
Smart sticks are devices that give off a warning by buzzer or/and vibrator when an obstacle is in the way and allow the user to avoid the obstacles
Summary
People with visual impairment are the individuals who find it hard with healthy eyes to acknowledge the smallest detail. This study proposes a new technique for designing a smart stick to help visually impaired people to navigate safely. Much research effort has been focused on the design of Electronic Travel Aids to aid successful and free navigation and high-end technological solutions have been introduced to help blind people navigate independently. Walking sticks with adjustable length, e.g., elbow canes, were developed and sold in the market to guide the visually challenged These attempts were not completely successful in assisting the user. To alleviate these issues, the smart electronic aid is designed in such a way that it includes an ultrasonic sensor for obstacle detection, supported with. The traditional and oldest mobility aids for persons with visual impairments are the walking cane ( called Smart Stick) and guide dogs. Smart sticks are devices that give off a warning by buzzer or/and vibrator when an obstacle is in the way and allow the user to avoid the obstacles
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