Adaptive/Assistive 3.5mm Button

## What

This is a low cost, printable AT button. It interfaces with any standard 3.5mm mono jack system, commonly found in support situations for people living with physical disabilities.

AT buttons are a way for someone with a limited range of motion to control his or her environment at the same level as anyone else. These buttons can be used to adapt toys and home appliances such that they can be actuated with ease. Most AT buttons available are quite expensive, and are engineered to be used in serious -- 100% reliability -- situations. As a result there are a lot of [DIY projects](http://www.instructables.com/id/CD-Switch/) to make buttons meant for more relaxed use cases. We wanted to make a button that can be used for toy adapting and similar functions, while also providing a clean and durable design.

## Why

This button was created as part of a team-based senior design course. We worked with a local organization, [UCP and TASC of Huntsville](http://ucphuntsville.org/wh