@dc42 Thanks for the reply - Dotstars have a pleasing non-flickering warm glow that is easy on my eyes . I have wired my printer with these for the last 2 years & they're awesome.
SUPPORT_BITBANG_NEOPIXEL is the only path for
DUET_NG which I'm guessing aliases duet wifi based on other usages. The rest are
SUPPORT_DMA_* (exception being
PCCB_10 which I'm not sure I know what it is). I guess the Wifi only supports bitbang? These preprocessor definitions are dense & I'm not quite sure yet what needs to happen to add neopixel bitbang for