These smart LEDs seem like a good place to start.
You 're right - they make the construction somewhat
easier (mind you, you are running power busses to every LED, but with RGB LEDs, you have four wires to every LED anyway). The software is complex in one way given that you need the time-critical code to access the pixels, but you just use a library to do that.
I suppose I could create 4x4 layers, all wired in sequence, therefore only requiring 4 pins to drive the whole cube. Does that sound feasible?
Just wire all LEDs and planes in sequence. One wire to feed them all (why does that sound familiar?). Splitting them into groups and feeding via separate wires would make the code quite
You do however need to feed the power to all planes in parallel and it will not hurt to have redundancy in the power - feeding from more than one strut. Just ensure that the power at least
feeds directly from each LED to its successor in the chain.