Prototypes
Prototype One
Prototype One
![](https://www.google.com/images/icons/product/drive-32.png)
Initial prototype with audio feedback when within one meter of the wall
Only used materials found in Thayer
Prototype Two
Prototype Two
![](https://www.google.com/images/icons/product/drive-32.png)
Added haptic response rather than audio feedback
Identified that the device buzzes within a specified range rather than a distance from the wall
Prototype Three
Prototype Three
Added waterproof proximity sensor
Added tupperware housing for water proofing sensor testing
New 3D printed housing for final product