Multi-Functional Blind Stick for Visually Impaired People

One of the biggest problems faced by the visually impaired is navigating from place to place, be it indoors or outdoors. Further, the adverse conditions of the roads make it even more difficult for them to walk outdoors. They have to be alert at all times to avoid consequences like colliding with stable or moving obstacles, ascending or descending staircases, slipping down wet terrain. Also, At times they may be in distress and might want to send an alert to the android to track the location. These problems of blind people can be addressed with the intervention of technology. Several sensors can be used to detect anomalies like obstacles, staircases and wet terrains respectively. The prototype discussed here is a simple, sophisticated and affordable smart blind stick equipped with various sensors and modules. Also, this solution provides a way to send alerts about the whereabouts of the user to the concerned people.

Keywords: Arduino Mega, Ultrasonic sensors, GPS, Bluetooth