Here's how to use Maxim 2 wire stuff over a serial port with labview vis:
http://korea.maxim-ic.com/appnotes.c...te_number/1190
Not sure if the 1845 or 1847 digital potentiometer would work for you but if so this should be cheaper than $400
__________________
Getting paid like a biker with the best crank...
-MF DOOM
|