On Jeudi 30 Mars 2006 07:56, Frédéric wrote: > It's because I would also try to prototype from a python script... Here is a little python script which simply takes a read from the DTP92 colorimeter and returns raw XYZ values. You need the pyserial python module: http://pyserial.sourceforge.net -- Frédéric http://www.gbiloba.org