We built a product to help blind people walk around without having to carry a cane.
What it does
It is an ultrasonic sensor, connected to an Arduino, that notifies the blind user how far objects are through a sound output.
How we built it
We programmed an Arduino Uno with a Shield to compute the input sensor values from the ultrasonic sensor. Based on the distances, the speaker makes a specific pitched noise in order to notify the user.
Challenges we ran into
At first, we were trying to incorporate an accelerometer in order to calculate how long it would take the user to get close to an object. However, we realized that the output values from the accelerometer were not accurate, so we decided to solely use the ultrasonic sensor.
Accomplishments that we're proud of
We are proud to say that our project works and provides a gradient of noises based on the specific distances from the objects.
What we learned
We learned how to utilize an Arduino and code it to work cohesively with sensors.
What's next for Blind View
Our current project was a proof of concept and our next step would be to make it as small as a pendant, so the user can easily wear it without much hinderance and trouble. Also, instead of using noise as the feedback, we would incorporate a vibration, so only the user is effected by it and no one else in the surroundings is disturbed.