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Has anyone built one of these? I mean actually built one and not bought the kit. I am starting to venture into charlieplexing after I built the direct drive model. I hate to buy the LoL shield if I can just make it as I already have a mass amount of LEDs. Or if there is a tutorial for making a charlieplexed matrix with Arduino code?

[Reply #1 on:]

Judging by the lack of responses, I take it this is not feasible? Would it be easier to just buy the LoL shield? Or if anyone has any LED matrix tutorials for charlieplexing, that would work too.

[Reply #2 on:]

I bought the kit.  if you are going to make a rectangular/square martix kinda proejct, you can't beat it.

i also made my own 72 led Charlieplex network in a linear format.  think a string of 72 white LED, individually controllable.

Unable to find any documentation on how to wire up a charlieplex network in a linear format, everyone had diagrams for squares/rectangles, so I had to devise my own diagram.  I posted it: http://arduino.cc/forum/index.php/topic,99338.msg744912.html#msg744912
The first 16 LEDs are "stacked" to make the diagram shorter. 

ALSO, This doesn;t follow the simpler array pattern  (1,2/2,1;1,3/3,1;1,4/4,1etc)  This diagram's array would be 1,2/2,3/3,4/4,5/5,6...up to 1/3,2/4,3/5,etc.  my bad.

I hope this helps.

[Reply #3 on:]

Thanks for replying. However I am looking for a square/rectangle diagram. Kind of like the LoL shield is. 

[Reply #4 on:]

However I am looking for a square/rectangle diagram. Kind of like the LoL shield is. 

The diagram is the same no matter what the physical layout of the LEDs?

[Reply #5 on:]

Thanks. I was looking for an arduino code/project/tutorial like on instructables or hack a day.

[Reply #6 on:]

like on instructables or hack a day.

No you would be much better off looking for one that actually works and does not destroy components and is written by some one above the cretin level.

[Reply #7 on:]

That Criteria, Mike, Leaves out a LOT of US.... After nearly 50 years I Still "Toss one" once in a while... IMO

Doc

[Reply #8 on:]

I don't understand what that means. Is it some sort of sarcasm?

[Reply #9 on:]

Is it some sort of sarcasm?

Yes if you haven't noticed instructables are very often rubbish and full of mistakes. Try and avoid them if you are looking to learn anything.