So I was looking around for some info and came across some vague warnings of limitations that my idea might be flat out impossible, so I'm hoping to clarify that. I do pixel art paintings, and I was planning on adding LEDs to a large one I'm planning, and as many projects do, it sort of evolved over time into something much more complex. I don't have any specific boards or lights in mind, but my limited experience is with using an Arduino Nano and one of the standard LED strips to do some custom things for another painting:
I ran into some issues with this one after this video was taken that may be explained by some of the warnings I got from others earlier today - basically suggesting that throwing too much at these boards will make them not function, etc. I always thought this was strange, because I see cosplayers using hundreds of LEDs like nothing. But, anyway, here is what my plan is:
I want to make a "playable" painting. It will be a scene from a game, but there will be LEDs behind the canvas in key areas, and they will light up either by being just part of the ambiance or specifically by direct input (a SNES controller). Ideally there would be a single music track playing with sound effects playing when needed.
I was told that basically parallel processing is impossible, but I guess I had being using techniques learned in "blink without delay" to do what I did in the video above, so the question was why wouldn't it work?
If I need to use multiple boards/other hardware to achieve this, that doesn't matter to me, just as long as I can find the resources on how to assemble everything and what I should use.
The original question I was asking today was about the LEDs themselves. Parts of the painting are going to be, effectively, lasers. So strips will work as is, cut to length and put in series I suppose. Some sections are more like glowing orbs, so I was originally thinking of cutting a bunch of tiny strips and soldering them together in basically a grid pattern. My question was, can I just buy some sort of 10x10 LED grid and put that somewhere in the chain with the others? If yes, what sort of item should I be looking for? I have a grid of this sort laying around from a grab bag purchase, but it doesn't have the 3 wires of my LED strips, but rather like 14 pins, similar to a shield. So I have absolutely no idea how to interact with that in the manner I'm talking about.
So, how much of this is impossible? Thanks in advance!