Smart Blind Stick With Ultrasonic Sensor Using Arduino

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.

Smart blind stick with ultrasonic sensor using arduino.

Blind walking stick using arduino ultrasonic sensor hc sr04. Of course you can use a vibrator motor in place of buzzer and advance a lot more using your creativity. Project tutorial by hadi1234. 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.

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. Ultrasonic sensor 2 buzzer led should be attached to breadboard. 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. The stick also has an rf receiver which connects with an rf transmitter that acts as a remote for finding the stick on missing.

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. This smart stick can help blind people walk on the street safely without any help. Obstacle detection is one of the major concerns for a fully or a partially blind person e g.

I used a mini breadboard to connect the ultrasonic sensor to the arduino using. The smart stick is built on arduino pro mini. The technology can indeed neutralize human disability. This smart stick will have an ultrasonic sensor to sense distance from any obstacle ldr to sense lighting conditions and a rf remote using which the blind man could remotely locate his stick all the feedbacks will be given to the blind man through a buzzer.

Person suffering from night blindness cataracts glaucoma albinism or injury. The stick uses ultrasonic sensors for obstacle detection. These blind people are totally dependent on others as they can t walk alone. Almost 30 million people are blind according to the recent who report.