Smart Blind Stick With Ultrasonic Sensor Using Arduino

The stick uses ultrasonic sensors for obstacle detection.

Smart blind stick with ultrasonic sensor using arduino.

An ultrasonic sensor will be installed in a stick which will sense the distance of a person from any obstacle an ldr to. Blind walking stick using arduino ultrasonic sensor hc sr04. Almost 30 million people are blind according to the recent who report. The technology can indeed neutralize human disability.

The smart stick is built on arduino pro mini. Project tutorial by hadi1234. Person suffering from night blindness cataracts glaucoma albinism or injury. Obstacle detection is one of the major concerns for a fully or a partially blind person e g.

Ultrasonic sensor sends high frequency pulses these pulses reflects from object and takes as echo time between echo and trig is measured by the microcontroller or arduino which is. Using this smart blind stick a visually impaired person can walk without anyone s help. Ultrasonic sensor 2 buzzer led should be attached to breadboard. This arduino board is small enough to install on a regular stick and has buzzer ldr sensor ultrasonic sensor and a water detector sensor interfaced to it.

In this project we will learn how to design blind walking stick using arduino ultrasonic sensor hc sr04. I used a mini breadboard to connect the ultrasonic sensor to the arduino using. With this in mind let us use the power of arduino and simple sensors to build a blind man s stick that could be a lifesaver for visually impaired persons. This smart stick can help blind people walk on the street safely without any help.

Of course you can use a vibrator motor in place of buzzer and advance a lot more using your creativity. The stick also has an rf receiver which connects with an rf transmitter that acts as a remote for finding the stick on missing. The smart blind stick automatically detects the obstacle in front of the person and give him a response to the person by vibrating the stick and also with a warning sound. Ultrasonic blind walking stick as shown in diagrams there are two openings in ultrasonic sensor first is transmitter or trigger and second is receiver or echo.