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Amandine
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RGB LED tester
Amandine   10/19/2015 2:22:18 AM
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Hi. Can you post the sketch for the RGB LED tester? Thank you for the article.

pcam82
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arduino sketch for the rgb led tester
pcam82   1/26/2015 10:34:46 PM
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Hi Steve:


Can you post the sketch for the RGB LED tester?

Thanks.

 

David

Max The Magnificent
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Re: Trying an easier way
Max The Magnificent   8/7/2014 2:29:40 PM
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@TomBurgmann: Unfortunately my wife has other more pressing projects to while away my hours.

It's sad to see a good man brought down so low in this way LOL

TomBurgmann
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Trying an easier way
TomBurgmann   8/7/2014 10:44:54 AM
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"Progress isn't made by early risers. It's made by lazy men trying to find easier ways to do something."― Robert A. Heinlein


I have to admit that your Eager Beaver ways of building these NxNxN cubes appeals to the engineer nerd in me - BUT - I try to remember the RAH quote above and think it through before I start building.  If I had Protean Pete to help I might launch into the same project. Unfortunately my wife has other more pressing projects to while away my hours.

I will leave you with this thought. Prove a^n + b^n = c^n, solve for n>2.

Meanwhile I'll ponder my elegant solution and publish it before I retire. If there had been more room in this post I could have scribbled it down here ;-)


Steve Manley
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Re: Very cool idea
Steve Manley   8/7/2014 2:12:08 AM
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@kevinwongs: Very cool idea. With so many solder points. how to you plan to solder those. With any of these soldering irons it will take a lot of time... 

By my calculation and when the cube finally rests on its PCB there will have been 2384 solder joints made. I use a fairly cheap solder station like this one.

I'm building the cube in 8 flat 8x8 panels. The blog for the construction of these panels will be posted in the next few days, here is a link to the video in the meantime. The 8 panels will then be assembled into the cube. It has taken me a couple of months doing a bit as and when time allows to get this far.   


kevinwongs
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Very cool idea
kevinwongs   8/7/2014 12:11:16 AM
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Very cool idea. With so many solder points. how to you plan to solder those. With any of these soldering irons it will take a lot of time... 

Steve Manley
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Re: I shouldn't show you these...
Steve Manley   8/6/2014 1:57:11 AM
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@Mike Field: Imagine a set of 512 of these: http://www.adafruit.com/products/1734 coupled with 

http://hamsterworks.co.nz/mediawiki/index.php/Intelligent_LEDs

You could drive your whole LED cube in 24 bit colour, with a 30Hz refresh rate, using one pin of a FPGA. Each LED buffers the signal, tidies it up and hands it off to the next LED.

All you need is a 5V @ 30A as each LED is 0.3W,

What can I say, if only the Neo-Pixels were available before I started this project. I am where I am and it's to late to change. I already have experience with the Neo-Pixel strips as well so quite used to coding them. Maybe the next cube.

Max has bought enough Neo-Pixels and intends on building an 8x8x8 cube with them. Lets see how he gets on. I was looking to see if I could adapt my PCB design for him to use.

Mike Field
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I shouldn't show you these...
Mike Field   8/5/2014 6:01:48 PM
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Imagine a set of 512 of these: http://www.adafruit.com/products/1734 coupled with 

http://hamsterworks.co.nz/mediawiki/index.php/Intelligent_LEDs

You could drive your whole LED cube in 24 bit colour, with a 30Hz refresh rate, using one pin of a FPGA. Each LED buffers the signal, tidies it up and hands it off to the next LED.

All you need is a 5V @ 30A as each LED is 0.3W, 

You could free-wire it like https://learn.adafruit.com/free-wire-3x3x3-neopixel-cube

alex_m1
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Re: Brilliant!
alex_m1   8/5/2014 4:10:48 PM
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LOL

Max The Magnificent
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Re: Brilliant!
Max The Magnificent   8/5/2014 4:09:18 PM
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@alex: That will start that way, and next thing you know you'll adopt a german accent and plan to take over the world?

Vot? LOL

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