here is my Arduino based 5x5x5 LED Cube.
it uses 5 3-8 bitdecoder chips to control the LEDs.
the Arduino Board uses a PL2323 For USB to Serial. I recycled it from an old data cable for a mobile phone.
Wow - Taking it a step further if there were 1000 x1000 x1000 and they were RGB LED's then you could make a three dimensional image !
Inside a crystal ball or like looking into a fish tank
april:
Wow - Taking it a step further if there were 1000 x1000 x1000 and they were RGB LED's then you could make a three dimensional image !
Inside a crystal ball or like looking into a fish tank
... ... WHAT??? 
you can get very good results with a size of 16x16x16. 1000 x1000 x1000 (1.000.000.000 LEDs) is a bit too expensive (for me).
there are a few vids on youtube showing some very big LED displays.
thanks for your reply
Very nice and inspiring project. i'm putting a ledcube in my project cue now.
What kind of bit decoder chips did you use? 74HC595?
Do you have a schematic?
Regards
I always struggle soldering these so as to put them all leds symmetrically in the right way.
Can you guide me to the place where i can solder them in the right way?
Make yourself a chart Nishant - flat side of the LED, which is usually the long lead too (I think), is the Cathode.
Your array/cube will have all anodes connected, or all cathodes connected, yes?
So you have a set of shift registers that sink current thru the individual LED cathodes, with each layer having its own P-channel controlled source of current.
Turn on the cathodes, pulse the anode driver to light the LEDs. Next layer.
Or, you a set of shift registers that source current to the individual LED anodes, with each layer having its own N-channel conrolled current sink.
Turn on the anodes, pulse the cathode driver to light the LEDs. Next layer.
Hi Sir Robert , thanks for getting back on this , i have attached the click of my rather UGLY 4x4x4 cube , i drilled holes in a cardboard box to make sure the dimensions are exact but up on the ladder things twisted for bad and on the whole my cube turned A UGLY DUCKLING :.
Will be beautiful when you turn it on and turn off the room lights tho.
ok having your +ve endorsement, i'll now get on further and control it.
i have extended my led cube with an electret mic + an lm386 opamp to have some env response
here are my first results (there are still some noise issues i have to fix)
there is also a tiny description with some project details and ressources on my blog: