> If you use an RGB LED you can sequence and scan color :)

Ah, now that rang a bell

I dug into my pile of mags and found a Silicon Chip project from
June 2005 - "PICAXE Colour Recognition System"

It uses the TCS230 colour sensor IC and an 8-pin PICAXE,
probably a basic one (12F675 ?) given the date

http://www.w-r-e.de/robotik/data/opt/tcs230.pdf

http://www.edaboard.com/thread248427.html

Colour sensing isn't on the immediate agenda, and the IC perhaps
a bit coarse, but I thought I'd pass that on while I remember

Joe
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