I got bored the other night and took a first run at an LED 3x3x3 Cube. Here it is.
The software side is still rather rough so I'm not going to post it yet.
As for how it's put together, the cathodes (Negatives) on each level are soldered together, the anodes (Positive) are soldered together vertically. Each column and each level is on a separate digital pin on my Arduino Uno. The way to turn a LED on or off is by setting the level low and the column high. To turn more than one off I just turn them on and off really fast. The eye can't see that it's only one LED at a time. I think I may switch to using a transistor switch to turn the various columns and levels on or off as that way I can better regulate the amount of power going out to the cube. Look for updates in the future along with code snippets.
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