perCv

Inspiration

When we were barnstorming ideas, we did an empathy test where we blindfolded ourselves and tried to walk down the stairs and around the building. We then realized how difficult it must be for the blind or visually impaired to travel. So we created perCv.

What it does

perCv is two parts, the first being a bracelet, which will use an ultrasonic sensor to detect obstacles around the user. The bracelet would then alert the user via a vibration or beep. It would also implement 'recognition software,' which can detect and name common objects in the user's environment by comparing things it 'sees' with a database - for example, if the user was nearing a crosswalk, the bracelet would be able to detect the electronic STOP/WALK sign, and alert the user when it is safe to cross. Currently when many blind people cross the street on their own, they rely on the rush of cars on both sides of the road to determine traffic patterns so they know when to cross. However, when there are too many - or too little - cars on the road, it can be difficult and dangerous to cross. The bracelet will connect via bluetooth to an app that controls the bracelet. The app is replete with accessibility functions so that it can be customized to best fit the user's disability, and therefore help a wider audience of people.

How we built it

We used an ultrasonic sensor, an Arduino kit, Arduino coding software, and a computer program that allows us to create a mock up 'prototype' of our app.

Challenges we ran into

There were certainly more than a few challenges we encountered during our 48 hours! As neither of us are experts in coding, we had to spend a lot of the time just figuring out how to use Arduino. Combined with the long process of bugging, de-bugging and de-de-bugging :) , we ran way behind our 'schedule'. It was on the second day, in the late afternoon, when we found ourselves in the 'omg where did the time go I need another latte,' which ran late into the night.

Accomplishments that we're proud of

Figuring out how to code Arduino (and actually getting it to work XD), creating our app UIs, and working hard. That is, if working is defined as: 60% work, 40% dance party! (Shoutout to Taylor Swift =D)

What's next for perCv

A list of features we plan to eventually implement into perCv:

• Wearable as a bracelet with decreased sensor size • Integrated recognition software to identify common obstacles and warn the user against them • Adapted interfaces for blind users • More features to accommodate a wider range of disabilities • Sensor is wireless/Bluetooth compatible with smartphone • Increased ultrasonic range for more accurate detection • Vibration setting for deaf blind users • Low battery sensor

We hope that perCv will continue to develop and change people's lives.

Thanks to:

EnergySavvy (Facilities) Bryn Clothier (Mentor) Brittany Walentin (Specialist) Joe Goldberg (Consultant) Taylor Swift (Musical Genius)

Built With

• arduino
• ios