I´m working on an game project for my pre diploma (in german vordiplom). So my Problem is that i have 9 fields which are illuminated by RGB LEDS (LL-U49 RGB 1C RGB-LED http://cgi.segor.de/user-cgi-bin/sidestep2.pl?foto=1&Q=LL-U49+RGB+1&M=1
) and I need for each LED 3 Pins from my arduino. To Mix the colors I also need PWM. The Main Game idea is to switch randomlyo the color of each field. I need 3 x 9 Pins = 27 to get this to work.
So is there any chance to expand the pins on the Arduino? Or some other Trick?
I hope that my english is not too bad.