Tag Archives: 7 Segment LED Display

Designing our Project

Shapeways Guest Speaker

Hi All! We began class this week with a guest speaker from Shapeways joining us via webcam. She gave us an impromptu tour of the Shapeways facility (really neat to see all of their equipment!), and she spoke to us about the implications of Shapeways in the 3D printing industry. For those who do not know, Shapeways is a “New York-based 3D printing marketplace and service, startup company. Users design and upload 3D printable files, and Shapeways prints the objects for them or others” (shapeways.com).

After hearing our speaker talk, I was curious to learn more about the safety measures and policies that Shapeways has in place in regard to creating weapons. With gun policy currently being a heated topic in the USA, I figured this 3D printing company must have to make many choices pertaining to creating devices that could function as guns. Thus, I asked her to touch on the safety measures and policies in place. She let us know that ballistic manufacturing is regulated by the US government. However, Shapeways would technically be able to gain a license to be able to legally produce weapons for consumers. That being said, Shapeways has taken a stance to not produce weapons so they do not offer such a service to customers. I found this information alarming because it allowed me to understand that a 3D printing company has the potential to legally obtain a license to create weapons. These weapons could then be customized in such creative ways by the consumer in an effort to inflict the most harm upon other individuals. This worries me because it may someday result in new weapons that we have not even seen yet.


Readings & Project Design

On a lighter note, the assigned readings/videos for this week were spot on for what we did in class. They noted that the best first steps to take are to draw out your design, get prototypes as soon as possible, and get feedback from users (which are the exact steps that we plan to follow!). Check out the three pictures below to see some of our drawings and the different gadgets that we played around with. You’ll even notice that we got some lights to light-up on our Arduino!

Picture 1

Picture 2

Picture 3

We feel confident that we have all of the parts (except one) that we will need in order to create our Person-Counter device. The last remaining part we need is a 7-Segment LED Display that will show how many people are currently in the desired area (picture below). This piece will be crucial to our project because our device is meant to be free standing, meaning it will not need to be hooked up to an external computer once it has the code loaded onto it. Thus, it will need to have the 7-Segment LED Display to communicate to the user the data that it is gathering.

Picture 4

I became even more excited for our project today after tinkering around with the parts. Being able to physically touch the Arduino, perfboard, wires, etc. allowed me to grasp a much better understanding as to how this device will actually function (the circuitry became much more clear to me). One of my group members, Aubrey, noted that she has worked with Arduinos before and that she would be more than happy to help teach me what she knows about coding and how the devices work. This is extremely exciting to me because my mind is always wondering how electronics work at their core, so I believe this project experience will help me learn what I’ve been longing to know for so many years :).


Thank you!

Thank you for taking the time to read my post. See you next week!


-Scott Provenzano