ANDROID BASED SMART BLIND STICK USING ULTRASONIC SENSOR IOT

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  It is the working product of blind stick

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  Working in the mobile app

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  Working on mobile phone

Inspiration

The main reason of this project is to help blind people to walk with ease and to be warned whenever their walking path is obstructed with other objects, people or other similar odds.

What it does

As a warning signal, a buzzer is connected in the circuit, whose frequency of beep changes according to the distance of object. The closer the distance of obstruction, the more will be the buzzer beep frequency. We can say that the beep frequency is inversely proportional to the distance.

How we built it

The main component used for this device is the ultrasonic sensor.  The ultrasonic sensor transmits a high frequency sound pulse and then calculates the time to receive the signal of the sound echo to reflect back. The sensor has 2 circles. One of them acts as the transmitter and transmits the ultrasonic waves. The other one acts as a receiver (mostly a small microphone) and receives the echoed sound signal. The sensor is calibrated according to the speed of the sound in air. 

Challenges we ran into

Sensors are getting heated because of more battery usage.

Accomplishments that we're proud of

To enable the visually impaired to navigate around independently. To provide real time voice assistance with better accuracy and making navigation safer. To provide a low cost solution for giving a blind person a sense of vision work easily.

What we learned

I have learned about iot technology and how to serve the community

What's next for ANDROID BASED SMART BLIND STICK USING ULTRASONIC SENSOR IOT

Testing with blind people whether our product is working or not.

Built With

• arduino