I attached a small piece of copper foil onto a strip of epoxy sheet and cut it out on the vinyl cutter, and then weeded it. We were given a thruhole Mosfet to use while we were using a breadboard and the Uno, but I didn’t want to have such a big item on such a tiny circuit, so I used an SMD one instead, checking the mosfet datasheet before I did (their datasheet link leads to a dead end now). As I’d never hand drawn one ever, I thought I’d try that. I decided to make my own copper circuit for this one. We had another great session with Emma, who got us testing out some piezos and vibration motors. I am very pleased to have begun using the sockets with the Attinys - it will make troubleshooting easier. I think I cooked the pin (I still have to test that), but you can see below, I put some other neopixels on a different pin, and all is working fine. I was having trouble with the circuit I made in the first wearables week, did a little troubleshooting, frankenhacked and had to cut out the trinket. It worked nicely, and you can see it more clearly in the video in the next section. I also tested out the fibre optics - we have two different thicknesses, and I combined them in a little bundle (tried heatshrinking them together but that didn’t work so well) and put them in a 3D printed neopixel diffuser that Bella printed out, but I’m embarrassed to say that I can’t find it on Thingiverse to link to it. A few days later when Cecilia returned, I remembered to ask her about that thread, and she told me where it was, so I got to use it for my wenduino instead. I made a little jig to wind the thread around so that I would be able to solder it to a capacitor, and then cut the middle bit so that it was not longer connected, but as I didn’t find any solderable thread, I don’t know yet whether it is a good idea. I tried all the conductive thread I could find, but to no avail. I also tried to work out if we had any solderable conductive thread, because I was sure that Cecilia had said there was some. I just cut a strip of it with scissors so I didn’t waste any. I haven’t soldered onto copper foil for a while, so I thought I’d warm up by trying that. I’ve always found the Gate name confusing with Mosfets, but I try to remember its function as allowing the current to walk on the fence, not through the gate - if the gate was open it wouldn’t be able to tightrope walk across to the other side of the fence.Īttiny socket, sew onto fabric, pull out attiny whenever you want to program it. VGSĭigitalWrite(pin, LOW) = no difference or GVS = 0 Gate reacts when there is a difference between voltage on pin and GND. Motion shape memory alloy, sma meets smocking workshop, crimp beads jewellery making no solder,Īfroditi Psarra & Dafni Papadopoulou made a Culture Dress,įlip dots, hematite beads, Stitching Worlds & the Embroidered ComputerĪttiny EMF detector Afroditi Psarra, attiny 85 Sound fabric speaker tests on vimeo, useful sciency website,ĭfplayer mini, (watch out for the useless libraries) SFXC supplies for textiles and paper, Laura Devendorf, visual LEDs (neopixels, smd, thruhole etc), no of pixels x 40mA/1000 = amperage needed.įibre optics, pixie led adafruit 3W are good, end or side emitting, documentation for attaching to led.Wearability: feel on the body, weight etc. Another interesting and accessible lecture by Liza Stark, with a good list of considerations when designing soft electronics, or E-textiles.Īpplication: is it for a POC or runway/performance
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