Yes, the advancedLEDbelt sketch is a total memory hog. Oink oink! If you're using an ATmega168-based Duemilanove, they I could definitely see this failing even on a 64 LED strip.
You might be able to free up juuuust enough memory by reducing the size of the 'fxVars' array -- it's declared a bit larger than is used by the sketch right now. Try changing line 60 to:
- Code: Select all