Does any one have info on the protocol used in TI graphing calculators. I am persuing an application in which a pic would collect data for a short period of time. I would like to then display the data on a graphing type calculator. I know using a PC with Excel would be easier; but at a much higher cost. I have tried contacting TI without any success thus far. -- Les Troyer Sr. Analyst Siemens Power Corp 2101 Horn Rapids Rd. Richland, Wa. 99352-0130 Voice (509) 375-8695 Fax (509) 375-8940 Operator (509) 375-8100 email ljt@nfuel.com Ad Hoc, Ad Loc, Quid Pro Quo; So Little Time SO Much To Know. -Jeromy Hillery Dillery Boo, PHD, MS and Q