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week05.md 45.77 KiB

5. E-Textiles and Wearables I

##Results

#IMAGE IMAGE IMAGE IMAGE

  • I made and documented a digital sensor using a bikini clip
  • I made and documented an analog sensor using Danish Kroner coins
  • I used hard/soft connections with conductive thread and perfboard, pushbuttons and conductive fabric.
  • I integrated the bikiniclip switch into a project: a choker that has an alarm system built-in.

#VIDEO VIDEO VIDEO

  • Document the sensor project as well as the readings got using the AnalogRead of Arduino
  • Upload a small video of the swatches functioning

Basics, research, inspiration

I'm so excited about this week! I have worked with electronics before but have little experience with soft circuitry and e-textiles. So am very happy about the opportunity to learn more this week (by doing!).

During this class I was in Copenhagen so I had to skip this assignment, but I'm catching up now. I had to miss some tutorials, but since I know electronics fundamentals from previous experience and Fabacademy, I mainly studied the (really helpful and clear!) materials provided by Liza Stark on the class page and Kobakant. I've been obsessed with this website for years. It's so good.

Danish Kroner Analog sensor by Plusea

I found these swatches with the Danish Krone slide-switch/softpot by Plusea (Hannah Perner-Wilson) here. Since I was in Denmark this week, I kept a few of my Kroner to try it out!

Some Danish Kroner I kept from my trip this week.

Bikini clip digital switch

I went through my sewing kit looking for some textile related hardware that might be conductive. I found this nice metal bikini clip, checked it with the multimeter and BOOM! Found my switch.

potential switches from my sewing box that didn't make the cut. Loes Bogers, 2019

Other learning yearnings

Atmel ATtiny for programming

I would like to try building and programming the circuit using an Atmel ATtiny85 chip instead of the bulky Arduino UNO. I have all the materials for it and would like to practice being able to solder such a chip onto textile. I've seen the ATtiny chips used in a lot of wearable projects, so even though it's not part of the assignment, I figured it will come in handy to know how to do this later. I have a TinyProgrammer tick i can use: just plug the DIP chip's legs into the programmer. More below.

Home-made and bought lilypad stuff lying around

I previously used some of the open source Lilypad designs by Leah Buechley and recreated them in our lab. It would be nice to reuse some of those, like the TinyLily's I made - using ATtiny chips - with the sewing holes, or the one with the snap-on buttons, or the little LED lights I made with on-board resistors. Oh and I even made some battery clips that I could use now! Let's see. I also have some Lilypad components I bought, like this buzzer. Oooh I want to work with the buzzer as an output.