Background/Fair warning - I am new to DIY LED projects. I found this site's info on making simple candle-flicker LED lights and made such a light for my Jack-O'Lantern this year.
I have a failing rainbow pumpkin light that I would like to replace with a DIY. I known there are various circuits on-line to do all kinds of fancy color-changing between RGB LEDs, but all I am interested in is a simple timer fade - something along the lines of 2secs Red, 2secs Red+Green, 2secs Green, 2secs Green+Blue, 2secs Blue, 2secs Blue+Red, repeat.
Is there a simple way to do the above? Or would it require a microcontroller/chip programmer/etc.? The failing light seems to be fairly simple, but there is a small "something" hidden beneath a glue dot that I suspect handles the color changing.