I tried looking for tutorials and examples of LED matrix software for Arduino, but I could not find the answer I was looking for... so hopefully you guys can help this rookie getting started on this :)
I want to create a 12x12 LED Matrix using the the Displayduino & LEDMatrix (http://mondomatrix.com/info/?page_id=317) programmable in Arduino and Processing. To simplify the question, let's assume that each LED in the matrix also contains a simple push button.
What I want to create is when I push one of the buttons on this 12x12 grid, the LED will go on. The surrounding ring of LEDs has to be slightly dimmed, the 2nd ring has to be even more dimmed, and maybe even another ring of LEDs that is almost off to create this gradient light circle effect centered around the button I pushed. I want to create multiple of these light glows simultaneously on the grid, where the size/intensity of the light circle depends on how long you push the button.
So my question is: how can I easily program this? In my opinion I have to program Arduino (or maybe Processing, what's better?) in such way that the LEDs have a sense of the other LEDs surrounding them in order to easily create these kind of patterns. Are there corresponding examples, or can you guys help me to get me started? Much appreciated! :)