Hi Greg, I was in a similar boat as you are in...
Check out this link: http://exchange.ni.com/servlet/ProcessRequest?RHIVEID=101&RPAGEID=135&HOID=506500000008000000E1A40000&UCATEGORY_0=_31_%24_12_&UCATEGORY_S=0 I did find a company that does a 3.3V board: Access IO Products. If you want various voltage levels, you may be stuck with a DAQ board... However, check with NI Customer Service... I think they were or are to release a newer DIO board which supports multiple voltages. Regards, JLV
