chebe: (Default)
DeepVR is this amazingly beautiful and serene underwater virtual reality that some very talented and extremely dedicated people have been working on for a while now. (It is seriously astounding, check it out if you can.) You are immersed in this other reality with the Rift, or now also the Vive. You navigate the world by controlled breathing. There isn't yet a popular controller to do this, so they have been trying various different configurations and learning from each iteration.

One such type of belt )

Finished belt outside
Photo by chebe

Apologies for the poor photos, I was so focused on finishing them that I forgot to get decent photographs. The rush was because the belts have flown off with the team to Tribeca, where they will surely be put through their paces. I look forward to finding out how they held up and what didn't work so well.
chebe: (Cyberish eyes)
Yesterday (Saturday 20th February) Career Zoo was once again held in the Convention Centre. It had a couple of themes, one of particular interest to myself; women in tech. I wasn't sure what to expect, but the powerhouse that is Coding Grace got in touch, organising a mini wearables hackathon in the middle of the whole thing. Uh, yes!

We spent the day in an indoors white-picket-fenced picnic area next to DAQRI, our generous sponsors. Playing with toys, battling software, sharing resources, talking to curious attendees, and having a great laugh.

Wearables mini hackathon picnic in progress
Photo by CareerZoo, source

Photo journey )

A huge thank you to my fellow subversive hackers; [ profile] whykay, [ profile] micktwomey, [ profile] saoili, [ profile] meaigs, [ profile] taraannosaur, [ profile] norette, [ profile] NaoimiGillis, and everyone I got to talk to during the day/night for keeping me so entertained! And Coding Grace, DAQRI, and Career Zoo, for making it happen.

Hack-ter Party
Photo by CodingGrace, source

chebe: (StepIntoTheLight)
Three *years* ago I started this project. At a Christmas Jumper Make Night for charity. It seemed like a simple idea; sew up some LEDs with some conductive thread. The first year I only got most of the felt snowflake done. The second year I got the SewIO board wired up. It wasn't until the third year that I managed to complete the circuit. And there are problems, but we'll get to that.

Details )

All in all, except for the faintness of the LEDs, I am happy to declare this project finished.

It was pointed out that most light-up jumpers are so bright that it can hurt to look at the person wearing them, so dimmer, softer, LEDs aren't actually a bad thing. Especially as this kind of jumper is typically worn in winter, in dark pubs. That is a very good point. I just wish it was intentional.

Winter Jumper, modeled
Photo by chebe

chebe: (Sewing Machine)
Well, they do say "start as you mean to go on", so I humbly present, that most rare of creatures; a blog post.

I picked up another Gléasta bag making kit at the craft fair a few weeks back. They cut up all the fabric (in cute combinations), so all you need to do is pull it out and sew. Far less preparation. And in the manner of easing myself back into making, I dusted off the sewing machine and opened up the kit. Start to finish only took a couple of hours.

Reversible shopping tote, in sewing/haberdashery print, laying flat Reversible shopping tote, in sewing/haberdashery print, opened to show green inside

Reversible Shopper
Photo by chebe

I have a few long overdue posts on past projects that I hope to get up in the next couple of weeks. Until then, let this past year burn, and welcome the new!
chebe: (AsciiC)
Further experiments with the LCD screen.

Install two libraries;

Uno pins;
- 13/SCLK to SCLK
- 12/MISO to MISO (not needed)
- 11/MOSI to MOSI
- 10/SS to CS
- 9 to DC
- 8 to RST

Arduino Uno breadboarded to 2.2inch LCD

Uno works smoothly
Photo by chebe

LilyPad Maincontroller pins;
- 13/SCLK to SCLK
- 12/MISO to MISO (not needed)
- 11/MOSI to MOSI
- 10 to CS
- 9 to DC
- 8 to RST

Arduino Lilypad Maincontroller breadboarded to 2.2inch LCD

Lilypad Maincontroller works as well!
Photo by chebe

chebe: (Pi)
Take one cute little Adafruit 2.2" LCD(isplay), and make it work with BBB.

Wire up as per this post.
- (DL not connected)
- BBB SCLK pin P9_22 to TFT SCK (yellow)
- (MISO not connected)
- BBB MOSI pin P9_18 to TFT MOSI (blue)
- BBB CE0 pin P9_17 to TFT CS (green)
- (SDCS not connected)
- BBB pin P9_12 to TFT RST (orange)
- BBB pin P9_15 to TFT D/C (purple/white)
- BBB 3.3V power pin P9_3 to TFT Vin (red)
- BBB ground pin P9_2 to TFT GND (black)

Then following the Adafruit tutorial;

Enable SPI(nterface);
- Add this line to /boot/uEnv.txt
- And reboot

Install all the things

Edit the python scripts in the examples directory to comment out the raspi pins and uncomment the BBB pins. Run. See cat. Be happy.

BeagleBone Black (in blue case) breadboarded to 2.2inch LCD

Beagles and cats get along just fine
Photo by chebe

NeoPixel Tiara

2015-Aug-25, Tuesday 08:08 pm
chebe: (BeautyQueen)
I love the Adafruit Learn site, particularly the wearables section, there are some really fun ideas in there. And when I saw the NeoPixel Tiara I knew I needed one. I had almost everything already, except the 3d-printed band.

To TOG! We downloaded the thingiverse file (tiaraHolesClose.stl), converted to gcode, and watched the LulzBot Taz print for 50 minutes. *cue montage music* It was a pretty good print, given how fine some of the detailing is, but our process needs tuning as there are artifacts, and the strands are coming apart as I touch them. Still, usable!

LulzBot Taz 3D Printer part way through printing the tiara

Robot minion making me a crown. Finally.
Photo by chebe

On to the assembly! Process details await )

Tiara on top of my head, looking nicely symmetrical, with centre NeoPixel lit up

Finally, my royal position secured
Photo by chebe

And, because the tutorial code has a nice sparkle effect to it, here's a short video.

I am going to wear this everywhere.
chebe: (Spools of thread)
I am haphazardly working on projects, and have just replaced my soldering iron, so I should have more to show soon. In the meantime I'm occupying myself with little things that I should already know. Like stringing some beads on some string. This is useful knowledge.

The first method to do this is simply wrapping a length of waxed cotton cord around an item (in the middle of the length of cord). Then passing the two tails through a single bead and knotting them so they don't fall back through. It is really simple, and works well. Except that the cord needs to be long enough to go over your head. And the bead needs to have a wide enough hole to fit the two widths of cord.

Rainbow titanium doughnut on black waxed cotton cord, secured with small silver tone bead

Simple single bead necklace fastening
Photo by chebe

To get a shorter necklace the length needs to be adjustable (or to open). Doing this is also really simple, once you've done it once. Take a length of cord in a circle, overlap the ends. Place one of the ends under the cord parallel to it, and then do an overhand (aka regular) knot to itself. Repeat for other tail. (Try it, it makes sense once you see it.) Now it can be long enough to go over your head, and tight enough for a choker style necklace. (And you can use thick nylon cord without having to worry about fitting through any beads.)

Copper medallion on a double-overhand knotted black nylon cord

Adjustable double-overhand necklace fastening
Medallion by Coral Mallow
Photo by chebe

Next I have to acquire some crimp beads, spiral clasps, and other such fun findings. At least now I can wear my pretties.
chebe: (AsciiC)
Okay. Hi. Yes, I'm still here. It's been an eventful err, many months. But more about that another time. Maybe.

Well, either that, or, I only post once in a Blue Moon! (Sorry, couldn't resist.)

Last year at EMF I picked up a BeagleBone Black (rev C). This week I actually unpacked it and powered it up. I was pleasantly surprised to find that the rev C ships with Debian installed, but that means most of the documentation online (and on the BBB) is slightly out of date. No worries; things are actually simpler now!

Even though it shipped with Debian when I tried to apt-get update/upgrade/install I got errors. So there was only one thing for it; flash the onboard memory. When I went about this I found that the source of online documentation was (is?) offline. And the wayback machine was only serving up some too-old files. Luckily I found a chap with a link to the most recent eMMC flasher image! I've said it before, and I'll say it again, yay for bloggers!

One thing that tripped me up; when writing the image to the SD card, on Windows you need to run the program As Administrator for sufficient privileges. Learn from my mistakes friends. Also, only hold down the SD button until the 4-LEDs start to flash, then let go. The rest is smooth sailing.

When you boot up, you ssh in (over the USB cable); as root, with no password. Set one immediately! Then you do all the usual configuration things;
set a nice hostname - vim /etc/hostnames, vim /etc/hosts
add a non-root user - adduser, visudo
setup wireless - vim /etc/network/interfaces (unfortunately it involves hardcoding your password)

(I got a raspberry pi wireless dongle to use with my cubox, and now my BBB. Poor thing has never meet a raspberry pi. ... Speaking of the cubox; arch linux turned out to be just too much effort. Will probably throw Debian on there as well.)

Then reboot, and if ifconfig doesn't show an ip-address try ifup wlan0. Once online apt-get update, apt-get upgrade. And just like that you have a fully functioning Debian server (with broken out physical pins) to bend to your will. I have to say, it is one of the easiest setups I have encountered with microcontrollers/embedded systems. And a good first impression means a lot. I look forward to playing with it more.

*edit 2015-09-16*
Setting up my second BBB was far more troublesome! I finally got it working; using dd in linux, onto an 8gb micro sdcard (my 4gb must have a .1 or .2 too small), and even though the file (from here) is named 2015-03-01 the installation reports 2015-07-17. Curiouser and curiouser.
chebe: (Sewing Machine)
It's okay, my sewing machine and I are friends again. I had been using 'universal' bobbins, but it turns out they don't fit Janome. I bought some generic brand ones that mostly fit, just a millimetre or so off. The problem is less frequent now. But every so often I hear a clatter, as the bobbin thread comes out of the guides and loses all tension control. Now that I know, I can listen attentively, and tend to her when she acts up.

Have you seen Seamwork? I'm enjoying the monthly appearance of quick, casual patterns in my inbox. And while I'll never make all of them, learning about the techniques is interesting. One of the patterns with issue two was Manilia, a pair of leggings. This, I thought, fits in with my sew-knits intention, and is an easy introduction to trousers. So I got out my spotted fabric, and had a go. (You'll be glad to know, dear readers, that this is the last of that spotted fabric! Newer colours and patterns await us both.)

Two legs, front and back pieces each. A covered elastic waistband, and some cute tulip cuffs. Add it all together and you get a garment with no hems! My absolute favourite kind! Very easy to make up (once your machine behaves). Fit-wise; I need to allow more width in the calves, and take out both width and height in the belly. But, regardless, very comfortable. Hope to make again.

Couple of pictures )
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