yes, we will work on that... :)

This is the coolest thing that I have ever seen.
Neato !!!!

Do people still get beat up for doing stuff like this? I hope so. Regardless, this isn't a christmas tree.. There's no place for ornaments..

hi there, it's a concept idea of a futuristic Christmas tree,
if you have a better idea for a futuristic Christmas tree, bring 'em on!

Yes, it's all very nice, but is it cat-proof?

We are thinking of an see-through plastic enclosure for it so it can hit people, dogs, or cats while in operation...

if it really only shows what I get to see: what a pointless video! and, uh, learn to, uh, learn to, uh, talk!

I was reading the howto and wondered if you really need to seperately wire every one of your green leds. AFAICS, you can just hook all their anods together, just as you did with the cathodes. You can then put a single resistor in series with all the green leds (which are in turn in parallel).

Normally, you would calculate the resistor value as (Vsource - Vled) / ILed, where Vsource is source voltage, Vled is led voltage and Iled is typical led current (last two depending on the type of led).

Now you can just do (Vsource - Vled) / (n * Iled), where n is the amount of leds you connect.

Oh yeah, you can do that for the cathode side, but you still need to connect the anode side to i/o pins if you want to control it. That's a very good idea! Will implement that in our next DIY!

You can also colorwash the Christmas tree with additional mood lights from http://www.a-r-e.nl

> Oh yeah, you can do that for the cathode side, but you still need to connect
> the anode side to i/o pins if you want to control it.
Well, you can really only do this if you don't want to control them seperately (putting the resistor at the anode or cathode won't make a difference...). The calculations I made assume that all leds are turned on. If some are turned off, the others will get more current.

nice thing, ony hold your camera still next time, i almost puked.

hi all. nice blog. its very ineresting article.

This is cool idea!!!!!!!!!!!!! I like this project. You can find something like this from www.lunaraccents.com/technology-programmable-LE...
also but if you want to do some project with them, make sure if you have high budget!

www.bothwinchina.com
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http://www.bothwinchina.com/upload/20074517621.JPG

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