Hej David VanHorn. Tack f=F6r ditt meddelande 23:10 2002-01-02 enligt nedan: >At 03:45 PM 1/2/02 +0600, James Paul wrote: >> Morgan, >> >> I don't know about the other stuff, but the RGB LED's are about >> $6.00 USD per piece. At least the ones I looked at were. This http://www.elfa.se/elfa/produkter/se/20/2019296.htm=20 is a 2 USD SMD RGB LED=20 By Everlight sold in the Nordic by http://www.elfa.se >Red string, Green string, Blue string, each 120 degrees apart. >Put the display data in three bits of a port and clock it all in parallel, >so that there is no sync problem. ...Or six, nine, twelve strings for lower RPM and higher luminance... Well, expensive, but cheaper than a fyll X/Y matrix anyway. I would guess that color combinations (i.e. R+G to make yellow) would look= very flickery at low rpm: R, G, dark, R, G, Dark, etc...) Just delay the data between the strings of the same color X rotation steps= and there is very little extra processig power needed. /Morgan -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics