Hello,
I wanted to program the LED Cube ( 888 ) using Arduino. Is there any schematic diagram of the LED Cube. I got the LED cube from http://lookingglassfactory.com/product/8x8x8-l3d-cube/
Well, they usually are set up like one of these:
Each column of 8 has a common cathode, so you'd have 64 cathodes to control the pattern of each layer, and each layer has common anode. Provide power to one layer, sink current thru the selected LEDs. Turn the anode off and repeat for the next layer. P-channel MOSFET to provide anode power per layer an 8 TPIC6A595s or TPIC6B595 for the 64 columns.
Alternate method is each column having a common anode, and then a common cathode per layer.
N-channel MOSFET to sink current from each layer to turn it on, and MIC2981 buffering 74HC595 outputs to source current to each column so that more than 8mA can be supplied to a column (to avoid burning up the HC595).
Drive the columns, sink current with N-channel, turn off N-channel and repeat.
Hold each layer on for ~ 4mS (4000 microseconds) max for ~30 Hz refresh rate. (1/(30 frames/sec x 8 layers) = 4.17mS)