I'll start off by saying I am very new to all this, but I'm trying to be patient and learn as much as I can!
I've had this idea for a while, and have been gradually researching how I might accomplish it..
Basically, I want to create a poster-size LED array (~500 LEDs I suppose) that can display user-defined patterns and hopefully act as an audio spectrum analyzer as well.
I think the best way to get a nice even spacing would be to use some pegboard from a hardware store that has 5mm holes.
I've also been pondering about ways of controlling the matrix, as I'd like to be able to do something real-time (like an audio spectrum analyzer) as well as 'patterns' that can be just looped and possibly 'random' patterns. I think a convenient way of controlling it for both these purposes would be over a network, and I noticed the Olimex LPC-E2124 in the Ethernet to Color LED Matrix tutorial... but its $100
But if the network-control option is feasible, then the Java program mentioned in the Ethernet LED matrix tutorial would be perfect.
Also, I figured I'd like to have a way of being able to easily replace individual LEDs in case of failure..
Does anyone have any ideas/suggestions on where I start/etc. (I realize this will take quite some time for me) Or am I completely in over my head