Smart tapestries

Along with my collaborators, our ideas about the use of smart textiles are beginning to find root. We are going to work on a number of tapestry-like objects which react and change. In one, the tapestry will present a kind of physiological portrait of a person, in another, the tapestry will react to being touched in a variety of ways. In a third initiative, we are going to be constructing organic-looking forms that react and change shape over time. All of these are initiatives being developed in support of kids with disabilities, to provide them with environments that are more responsive to their often limited physical abilities than are the environments we usually have around us.

Some of these ideas may also be eventually incorporated into garments. We have now obtained some workable samples of the Nitinol shape-changing wire and we are progressing on the development of some simple examples of the wire in operation. At the same time, we are developing designs for more ambitious pieces. Along with the conducting thread, the Lilypad computer board, devices such as heartbeat monitors, accelerometers, and so on, as well as LEDs and fiber optics, the projects are beginning to take shape. It is all very exciting!

Multiple DIY convergences - a revolution in progress

I have to admit that after poking around in several emerging fields of activity, I am stunned to discover how many environments are becoming available to the average tinkerer. The convergence of electronics and computer programming with textiles and garments is only one among several. Sewing as a hobby requires a modest amount of monetary investment, depending on how one goes about things. If one is given a machine or buys one used, works with inexpensive fabrics or by breaking down second hand clothes and re-making them differently, one can manage with costs of the order of about 100$, what you might call a "stripped down budget". If one buys fabrics, a sewing machine and a serger, one is operating within a budget from closer to 1000$ albeit over a certain amount of time, which I would call a "moderate budget".

So-called "soft electronics", that is, electronic components that can be incorporated into textiles and garments, cost about 100$ to get a minimum of materials, and several hundreds of dollars to be operational in this regard. So this places soft electronics within the range of a moderate DIY sewing budget.

Interestingly, the use of RFID technologies (smart chips that emit an ID signal that can be picked up by an appropriately designed antenna) is in this same price range. Today, one can buy a receiver for about 20-40$ and transmitters at costs of from 3$ to 20$. So for an investment of a hundred dollars, one can create a small environment within which one can sense sensors installed into objects or fixed into the physical environment.

Another interesting technological capability in an only slight higher monetary bracket is amateur robotics. With the emergence of Lego's Mindstorms robotics platform, one can build operational robots for an initial investment of about 400$, with very little additional investment required (unless one wants more than one robot).

Hence for what I am calling a modest budget (say 500$ to about 2000$), one can develop smart garments with RFID scanning capabilities, robots with RFID capabilites, and the beginnings of convergences between these two areas (i.e. garments that provide certain robot-like capabilities). This is amazing.

Technical knowhow for none of these areas requires more than some basic electronics knowledge (I took classes in electronics over 30 years ago, and this is enough to make sense of the technology) and some basic programming capability. There are also tons of online tutorials to help out with detailed step-by-step instructions to get the "newbie" through the hoops.

As a result, I think we are going to see a revolution in creative DIY projects in the next few years, as these different environments cross-fertilize each other and we see new ideas being dreamed up and tested very rapidly.

Diverse news

I've nothing spectacular to report today, just lots of bits and pieces.

I received my LilyPad Arduido Deluxe Kit in the mail late last week. I was really excited when I unpacked it, especially given that it's got a fully programmable computer chip that you can sew into clothes, but the kit came without the USB link which is necessary to program the motherboard. Apparently the LilyPads are selling like hotcakes and they're having problems with keeping supply up. Then, just yesterday, the link arrived. Unfortunately, the uploading doesn't seem to work - it gives me an error message. So I still don't have the thing working yet.

Still, I've got a lot more ideas about what to do with it when I do get it working. Things like displaying "emoticons" that express feelings, or having a light go off when my phone, buried in its pocket rings. I'd really like a "soft phone" but I guess that's still a ways off (perhaps not so long, though), or having an indicator to tell me that I'm slouching.

Also, thinking about displaying lights on clothes got me interested in black outfits. On the weekend, I went down to the fabric stores on Queen St. West (Toronto) and found some really nice black cotton fabrics, one almost velour-like that I plan to turn into my first pair of pants, and another semi-transparent with black vertical stripes (black on black), that I could turn into a shirt. A totally black outfit seems like it would be really cool to make. So even though I started thinking this way as a background for lighting up the clothes, now I'm totally into thinking and making "black".

E-Sewing, First Steps

The other envelopes form Aniomagic arrived, with some additional esewing parts : The round dials are sensors that switch when ambient light or temperature increases above a particular level, the rectangulary boxes in the middle contain LED sequins in two different colors, and the black round items are "velcro switches". I've left a tooney in the photo so one can get an idea of the size of these components ... the sequins are absolutely minute!



Using this in combination with the earlier kit, I finally got around to sewing "my first circuit", shown first as is, and then when the "push switch" is pressed. I was worried that the circuit wouldn't close - I really didn't sew very carefully, but even with my sloppy work, the circuit did work properly!



It's nothing to write home about yet, but now I'm ready to incorporate these components into something wearable...

I have some ideas about that :

- use a magnetic compass sensor (I've seen one of these somewhere) and light up on the N-E-S-W cross the appropriate lights depending on which direction one is facing - could even use a scene that incorporates symbolic elements associated with each direction and light up parts of the relevant scence
- light up different constellations from the zodiac at different times, or maybe when one meets someone
- light up an LED to remind oneself to turn on a light when the ambient light is too low to read be (!)
- light up initials

More another time...

Moving house

I'm rather frantic right now... today is my last day in Quebec City before moving for a three month stay to Toronto, as part of my sabbatical leave. I've almost got everything done, today is for tidying up a whole slew of small loose ends. Over the weekend I packed away my clothes and tried to keep my list of what to take updated. Tonight, I'm going to be packing up my sewing supplies and machines... Of course I'm taking my sewing machine and serger with me, I couldn't survive now without them! I sorted my fabrics on the weekend and picked out a subsample to take with me - things I hope I will make, although I probably have too much. I'm going to need a box to store all my thread and accessories into as well. It is amazing how much space my sewing life takes up, not just in my life, but also in my house!

I spent some time on the weekend constructing a new bodice sloper, using Aldrich's book on metric pattern cutting. I've been using one that I scaled up from another book, but I'm ready to start making garments in standard sizes, and Aldrich's book provides clear instructions to making the pattern "blocks". It is an interesting process following her drafting instructions to come up with the blocks, which aren't really yet a sloper, they are like a precursor to a sloper. So now I have a pattern block for the bodice in a standard size 14, ready for the next stage. I am planning to make up two women's shirts using some very bold fabric I have, as the beginning of a collection. Something for my weekends while in Toronto.

I can't wait to make the rounds of the fabric stores there, too. The last two times I was there this year, I found some fabulous fabrics, unfindable here in Quebec City. I just have to be careful not to go overboard on buying them!

Design Notes : With a view towards making interesting e-textile clothes

I have been thinking about the process of making clothes using smart textiles, and have a number of reflections to share.

First of all, I am overwhelmed and a bit bewildered by the range of sites one can find on the web dealing with different aspects of smart textiles. There seem to be dozens, perhaps even hundreds of new technologies under development or emerging on the market that provide new approaches to clothes. There is definitely a revolution in the making.

I've found a very interesting source of "artificial muscles" that could be integrated into clothes ("http://www.environmental-robots.com/products.htm"). Environmental Robots Inc (ERI) provide a number of kits to work with these materials, ranging from about 100$ to nearly 1000$ - these are really engineering kits, however, not for the faint at heart, I think. Nonetheless, they offer interesting possibilities for the use of shape changing textiles within clothes with a modicum of technical tinkering.

I've also been investigating the use of thermochromatic inks - inks that "change color" as a function of temperature. I've found one UK company that sells these (http://www.chromazone.co.uk/) - I'm sure there are more around, if I went looking. These inks don't exactly change color - they fade to invisibility and back when the temperature changes, but different inks may do so at different temperatures, or if they are connected to a powered heating link, they might be controlled into fading at different moments - this is what allows fabrics to change color. I think color changing fabrics is potentially of greater interest than the use of lights within clothes and as a result I think this is an area of experimentation worth pursuing.

I've also been thinking about the process of selecting fabrics in relation to the introduction of LEDs and fiber optics. Aside from the color-changing fabrics mentionned above, it is likely that one will choose fabrics for clothes differently when one is planning to incorporate LEDs or fiber optics than if one is doing conventional clothes. A lot of sites seem to be dealing with the incorporation of these devices into t-shirts. Personally, I believe the use of lights or color changing textiles is more interesting for more complex garments, but this likewise requires more care in design. Do certain fabrics lend themselves more to incorporating LEDs? As many of these are temperature controlled or may generate a small amount of heat, I imagine that more volatile fabrics such as acetate or triacetate will need to be avoided, but no doubt this should be tested. For that matter, does conductive thread operate equally effectively in different fabrics? Again, a good subject for testing.

E-Sewing Kit

Well, my e-sewing kit arrived in the mail. It looked like a very elegant card from someone, to the point I was wondering who my secret admirer was, when I saw the address in the top left corner, Aniomagic. I guessed that it was my electronic sewing kit, although it turns out to be only a part of what I ordered. It is the item called "Electronic Sewing Kit" on the bill of sale - one among several elements. I imagine the others will come later, but I'm already filled with my first esewing package! It's like an official launching, a ritual departure, into the world of smart textiles.



Although the packaging is delightful, the contents are rather more mysterious, as there is only a rather cryptic instruction sheet that shows how to string the elements together when sewn onto a garment. It's going to have to be deciphered to get this to work. Still, it can't be worse than a sewing pattern, which isn't always the easiest thing in the world to understand either!