A screen shot from solidworks of the prototype of our design
The hardware part of the design

Inspiration

The project’s idea is generated because of the TTC that happened recently, people need something to protect themselves

What it does

It help people launch something small on their arm.

How we built it

It's consisted of an Arduino due and a base shield on the top. A button and a servo motor are attached to the base shield. The servo motor rotates to a certain degree to open the stopper, then the stopper launches the coin using the elastic band attached to our 3D-printed model. The elastic band pulls the stopper back, and as soon as the shield is released, it shoots a coin away.

Challenges we ran into

The 3D printing's speed slow, so we cannot do so many iterations with our design. The prototype's design is not perfect but we don't have enough time to change them.