User:Jantjewag

Hi.

Hi there. I'm Jan, from Product Design. Currently doing Digital Crafts as a practiceproject to get a little taste oof how it is to work more with technology. Exactly I love it, altough I've got a lot to learn still. Luckely enough we can achieve already a lot through knowledge avaiable in the workshops and on the internet.

Project concept

A group of expatriates distribute face masks to pedestrians to raise awareness of air pollution

I took my inspiration from the fact that the human nose can't smell a lot of hazardous gasses. Some of these gasses, like nitrogen dioxide, are becoming more and more evident in our (urban) enviroment. The emissions of thousands of cars and companies let to a hazy fog, which covers cities as Shanghai and London.

This fog is a quite recent development. It was not until the Industrial Revolution (in the 18th century) that the emmissions of industries became a serious problem. Those 200 years might sound like much, but if you look it from the perspective of the entire human history it's not like much. Over time, the human was able to survive to a lot of potential dangers (Getting ate by dinosaurs etc.) but now evolution seems not to be able to keep up the pace.

Project Development

Nostalgic electronics 11-6

Today I received my Arduino Pro Micro, exciting! Finally I can put my gasmeter to work and read some data from it. So I dived into the electronica archive (which turned out to contain a lot nostalgia stuff) and looked for the parts I needed. After some time I was able to find a bunch of jumpers and the right resistor I needed. I even found a breadboard that still works after 6 years of dusty silence. So I installed the arduino drivers (which turned out to be harder than I thought) and builded the circuit I need with some help of the Internet. Then it was time for the most exciting moment! Running the code and trying the circuit. It worked, but there was something strange with the values. They seems to fluctuated from almost the lowest to the maximum value, while it was supposed to give a stable output after some minutes. Turned out I used the wrong battery (9V instead of 5V). Noob fail haha. So I'll have to try this later at school. At least the sensing part of my circuit is almost working.

Snif snif 16-6

So, my smelling-part is finally ready! It turned out that I not only used the wrong code, but also the wrong powersupply. When I hooked the sensor up to the powersource in the Interaction Station, my arduino was still reading strange numbers. Then I saw on the internet that people used just the arduino as a powersource. After trying that it worked totally fine. So now I can focus on the smell-producing part, which is probably the hardest. I figured out that are several ways to that. Like:

• Using a sprayer, using probably something like a servo motor to trigger it. Super easing, but produces a huge cloud of smell, whereas I need just a small portion.
• Heating a container to vaporize the scents. Kinda easy too, but slow.
• Using a ultrasonic transducer to vaporize a scent liquid