Any one care to help with a design for rgb led room lighting with an arduino?
I had this awesome idea after seeing dan's instructable about his room lighting module. My idea was to do basically the same thing with the Arduino Duemilanove instead. But it turns out that this maybe a little trickier than my initial thought.
What i had in mind was having 10 rgb leds(common cathode) connected in parallel(each red, green, and blue) and connect each to one of the Arduino's pwm pins and using software to control the "fading" of the different colors.
The only problem i could think of with this is that the Arduino could not power more than a few leds in parallel without them either being dim or blowing the atmega on the board. Maybe there's a way to control the leds with an outside power supply, and still be able to pwm the different channels. This is where my few hours of research and not finding anything has led me here to ask help from someone who has some more experience than i.
So if anyone has any way to do this other than using rgb amps, please help me out and share with me your info. Thanks in advance for any help i get.