I have my Arduino set up with two 1 to 8 demultiplexers on six of the fourteen available pins. The output of these two demux's then go into four RS latches to keep power on the LED's. I have my Arduino cycle fast enough that it's barely noticeable when the LED's change or turn on (since I have to tu…

8x8x8 Cube of RGB LED's

system April 22, 2014, 6:46am 3

Sorry, should have been more specific. The problem was solved by connecting the external power supply's positive lead to the VIN pin on the Arduino UNO.

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8x8x8 Cube of RGB LED's

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