At 11:08 PM 12/19/02 -0600, you wrote: >Absolute encoder gives you position, typically in something like >a Gray code (a binary code which, like the usual, has 2^N states >for N bits, but only one bit changes at a time, which makes >things a lot easier- they can easily be converted back and >forth). > >does this mean there is a unique number/output for each spot >on the encoder? Exactly. So you might have a 10-bit encoder, which would require 10 outputs and would have 1024 unique ranges of position from the POV of the encoder. Best regards, Spehro Pefhany --"it's the network..." "The Journey is the reward" speff@interlog.com Info for manufacturers: http://www.trexon.com Embedded software/hardware/analog Info for designers: http://www.speff.com -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.