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Smart Walking Stick for the Visually Impaired Using NodeMCU ESP32

Author(s):

V. Pugazhenthi , Agnel Institute of Technology & Design, Assagao, Goa; Frank D Souza, Agnel Institute of Technology & Design, Assagao, Goa; Jesus Fernandes, Agnel Institute of Technology & Design, Assagao, Goa; Akash Hattargi, Agnel Institute of Technology & Design, Assagao, Goa; Neel Chari, Agnel Institute of Technology & Design, Assagao, Goa

Keywords:

GPS Technology, Smart Walking Stick, EOA, RFID

Abstract

It is a real challenge when we try to move through an unknown environment and can not rely on our own eyes. Visually impaired people face this problem every day of their lives. They usually rely on a walking stick for navigation. They use the walking stick to detect static obstacles on the ground, stairs, holes and uneven surfaces through simple tactile-force feedback. Though it is light and portable, its range is limited to its own size and is not suitable for dynamic components. This paper focuses on developing a Smart Walking Stick using the NodeMCU ESP32 to help the visually impaired people to walk more confidently by providing information about their environment. Ultrasonic sensors are used to detect obstacles, pits, and stairs that lie ahead and to alert them of the same, thereby reducing the amount of accidents while walking. Water sensing pins are used to detect wet surfaces. The stick is programmed to connect automatically to the Android phone using Wi-Fi for sending sensor data, for giving auditory feedback to the user and also for determining the best route to be taken to reach a new location by integrating GPS technology. If the stick is dropped accidently, the touch sensing pins send a signal to the buzzer which will help the user to locate it easily. SMS alert facility is also provided in case of emergency situations.

Other Details

Paper ID: IJSRDV7I40713
Published in: Volume : 7, Issue : 4
Publication Date: 01/07/2019
Page(s): 667-670

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