A Smart Blind Stick

Abstract

This paper aims at providing assistance to visually impaired individuals to overcome their difficulties in navigation. The proposed system is called a Smart Blind Stick which consists of in-built ultrasonic sensors for sensing obstacles at particular distances and water sensors to detect the presence of water accumulation. On sensing obstacles the sensor signals the microcontroller which in turn calculates the distance and outputs appropriate alerts to the user.

The user is alerted through vibrations of a motor and a buzzer. In addition to this, we have implemented the voice assist feature which will guide the user to take the appropriate direction in case of an obstacle detection. Also, this system proposes a module that tracks the location of the user and sends an e-SOS to his friends or relatives in case of an emergency situation.

Keywords:ADC, android mobile application, buzzers, e-SOS, GPS module, Raspberry Pi, sensors.