SMART OBSTACLE DETECTOR FOR VISUALLY IMPAIRED PERSONS

Published Sep 19, 2022

GPL-3.0-only

5 hours to build

Beginner

arduino

Visually Impaired People Find Difficult to Identify Objects in Front of Them While Walking Down the Street. We Propose a Solution, i.e., Smart Stick with an Ultrasonic Sensors in Order to Detect Any Other Obstacles in Front of the User, Within particular distance. This device helps the visually challenged people to live their life as a normal person.

Components Used
Arduino UNO Arduino UNO	X 1
Ultrasonic Module HC-SR04 Ultrasonic module HC-SR04 is generally used for finding distance value and obstacle detection. It can operate in the range 2cm-400cm.	X 1
9V Battery Consumer Battery & Photo Battery 9V RECTANGLE	X 1
Wire Hook-up Wire 788133 RED 100 FT	X 1
Wire Stripper and Cutter Wire Stripper and Cutter	X 1
USB Type A to B Cable USB Cables / IEEE 1394 Cables USB A-B 28/26 BLACK 1.3 M	X 1

Description

There are about 285 billion visually impaired people worldwide, of whom 39 million are completely blind. Blind people are having difficulty moving or surviving without support. Using Blind Stick is therefore a gift for people with blindness.

For this Arduino UNO, ultrasonic Sensor are the key elements used.
A detector sensor which senses the obstacle then this stick makes buzzer sound.
This smart sensing alarm warns the Visually Impaired persons that there is an obstacle in front of them.

steps:

select a long stick.
connect the jumper wires to the (ultra-sonic).
connect the sensor's GND to GND pin of Arduino.
VCC of ultrasonic sensor is connected to 5v power pin in Arduino.
connect ECHO to Arduino pin 10.
connect Trig to Arduino pin 9.
connect buzzer positive to 11th of Arduino and GND the negative in Arduino GND pin.
9V battery acts as a power supply to the device.