Posted: November 1, 2012 Filed under: Creations, Explorations, That Totally Worked | Tags: arduino, art, blinky, DIY, fastspi, fastspiled, Halloween, LED, LEDs, light, TLT
Over this past summer, I built “The Lightning Tree” — a 13-foot-tall steel and aluminum tree covered in hundreds of programmable LEDs. Normally, The Lightning Tree slowly cycles through animations depicting the different seasons of the year, but for Halloween I reprogrammed it full of wild purples and oranges, and planted it in our front yard!
It attracted and delighted kids and grown-ups throughout Halloween night, but the time the sun rose, it had disappeared, like all things ephemeral and magic. (To be clear: it disappeared in a good way, as Black Rock City does.)
Posted: September 3, 2012 Filed under: Explorations, How-to, Pearls of Folksy Wisdom | Tags: black rock city, burning man, clothes, clothing, default world, exit greeters, fire, money, travel, wall country
So! You’ve decided to take a trip away from Black Rock City! Here are some tips to keep in mind when traveling away from Home:
Clothing: Make sure to bring enough clothes so that everyone in your group can have some. Among other things, will save you all time later since you won’t have to keep switching.
Travel: A note of caution here! Some vehicles that appear to have extra room for more people may not be giving rides! We’re not sure exactly why this is, but we’ve had several reports of this. Always ask for explicit permission before getting into someone else’s vehicle — a friendly “Hi!” and a wave as you climb in may not be enough! Use your judgement. Also note that some vehicles may travel faster than 5 M.P.H.
Money: Do you remember when you were a child, collecting bits of money here and there, slowly saving up for that one thing you really wanted? Well, money here works the same way, except that you may have to break open your piggy bank a little bit more often. If it helps, think of every shop, store, restaurant, gas station, bar, and mall that you see as if they were “Arctica”, and what they’re all selling is basically just ice: cool, and maybe useful, but ultimately fleeting and ephemeral. ‘Nuff said.
Fire: Make sure to establish a safe perimeter around any burn events that you create. This goes double for large-scale burns; many people you meet may be new to this form of expression and will greatly benefit from your love and guidance as they participate in the burning of any large-scale structures. Also, you might want to ask permission from the structure’s owner beforehand, if you can find them easily.
Bacon: BACON IS EXACTLY THE SAME EVERYWHERE, THANK $%!*&@# GOD.
Returning Home After Your Trip: After you’ve had an exciting jaunt out and about, it’s always good to come back Home, to be with your family and your loved ones. Have a wonderful trip, and we’ll see you when you get Home again.
Yours in flame-
Posted: July 3, 2012 Filed under: Creations, DIY, Explorations, That Totally Worked | Tags: arduino, blinky, creations, decor, DIY, glow, glowy, LED, LEDs, light, RGB, sculpture
After months of work, “Five Elements”, my first full light sculpture debuted this weekend at a private event. This quick video shows a short clip of each ‘element’; the actual five-element cycle is 12 minutes long, repeating each of the five elements five times each hour. As with any “version 1.0”, I have a dozen ways I’d like to polish and keep improving it, but I’m happy with it as is, too.
It’s illuminated by 150 RGB LEDs and controlled by an Arduino Uno using the FastSPI_LED library and my own custom code.
The installation at the debut event used a very different diffuser which made the LEDs more visible. While both were good, I think I prefer this diffuser overall.
Posted: May 1, 2012 Filed under: DIY, Explorations, That Totally Worked | Tags: 12V, blinky, DIY, electricity, glow, glowy, light, off-grid, power, repair, solar, solar cell, solar cells, solar panel, solar panels
I gave a “learning lunch” presentation on Small Scale Solar power today. We had a great audience, got great questions, and had fun doing it — despite the definite lack of sunshine to play with today.
The Short Version is this:
- Hook a solar panel to a charge controller to a battery. (There are starter kits with everything.)
- Presto: 12 Volt DC power!
- Use your newfound power as-is, or step down to 5v USB, or up to 120VAC using an inverter.
The slides don’t tell the whole story by themselves; that requires my own personal song and dance routine. Nevertheless, here they are, with “lite” graphics for fast download: PDF.
Posted: April 29, 2012 Filed under: DIY, Explorations, That Totally Worked | Tags: growing up, ice cream, parenting, walk, walking
On the sunny afternoon of Sunday, April 29, 2012, Eleanor, Abby, and a friend, all age 9, walked half a mile to The Chilly Cow for ice cream, and then back again (with a stop at the library, of course) without adult supervision or accompaniment. Total round-trip time was slightly more than an hour, well under the contractually pre-negotiated 90 minutes.
The adventurers’ parents spent the intervening time in various degrees of distraction, ranging from mindful confidence to … less meditative states. Overall the experience was deemed a great success all around, and at least two of the parents in question got a little choked up for a moment over the “our kids are growing up” factor.
The trip itself was a little less than a half-mile each way, as the crow walks. If you’re a grownup, or driving, or both, you might think of this particular half-mile trip something sort of like this:
But if you’re walking, it’s more like this (please do click the image to get the full experience) :
But actually, I think that if you’re 9 years old, and you’re doing this by yourself for the very first time ever, it has nothing to do with time, or space, or distance, or any kind of map at all. It’s just pure, undiluted awesome. And that is exactly how it was reported afterwards.
Posted: April 19, 2012 Filed under: DIY, Explorations, That Totally Worked | Tags: blinky, DIY, fix, garden, glow, glowy, LED, LEDs, light, nail polish, repair, solar, solar cell, solar cells, yard
Solar LED garden lights are everywhere these days, and by ‘everywhere’ I mean ‘in our yard.’ We’ve had some for a few years now, and simply through exposure to the elements, the plastic that covers the solar cells becomes so opaque that only a small amount of light gets to them any more. With the solar cells deprived of even that meager light that we get in Massachusetts in the winter, the solar cells don’t recharge the battery, the battery doesn’t power the LED, the LED doesn’t light up, and our yard has a serious bling deficiency. Eleanor and I took our solar garden lights inside to see if we could make them bright again somehow.
My first thought when confronting the frosted-over plastic was to try to ‘polish’ it with a fine-grit sandpaper. I had 400-grit handy and tried it on one cell, the bottom one in this picture. The top shows how weathered the cells were to start.
The sanding helped a little. Then I rinsed the sanded plastic dust off with water in the sink, and while it was wet it looked great, but as it dried it became frosted and opaque again. Thinking that perhaps we could use a mild plastic solvent to ‘polish’ the rough surface, I dabbed the solar cells with acetone, but again, as soon as it dried, the surface went from clear to cloudy again. “We need some way to keep it ‘looking wet’ even when it’s dry,” I mused. Eleanor got a wide-eyed LIGHTBULB! look in her eyes, and grabbed a bottle of clear nail polish! She applied a few test swatches.
The nail polish made the weathered old solar cells crystal clear again! I held the lights while Eleanor applied an even coat of nail polish to all the solar cells. It really didn’t matter whether the cells had been sanded or not, so we didn’t bother.
A few minutes later, the polish was dry, and we planted the lights outside again. You can see how completely clear the solar cells are. Our only concern was that the nail polish might block the UV light that provides a good portion of the solar energy to the cells.
We waited for twilight to fall, and when we checked the lights: success!
Even though it was mid-February the solar cells were now getting enough light to make the LEDs glow brightly! The solar cell rejuvenation project was a total success, and once we figured out how to make the cells ‘clear’ again, it was a quick and easy.
So what did we learn? We learned that ‘frosted’ plastic reflects precious light away from the solar cells; clean, clear solar cells can capture much more light. Clear nail polish is perfect for rejuvenating plastic-covered solar cells that have become weathered and dull. Some of the solar garden lights they sell have glass covers, and we speculated that they probably (1) are much more resistant to weathering, and (2) probably should be ‘cleaned’ differently from the plastic ones. Sometimes you need to try one thing to find out what you need to try next. Sometimes restating the problem out loud to someone else can give them new ideas. During the dim, dark Massachusetts winter, having bright, cheery little lights in the yard is great.