Idea would be as an exemple
4 RGB led arcade button
when you click a button, that button change his own led color
if you press that button again, it goes to the next color.
My questions is pretty simple:
1- is this possible to do ?
2- if possible, how many button can 1 arduino support ?
If this is truly possible, i'll do a giant board with over 150 buttons (will require multiple arduino i am shure)
Thanks for the help guys !