Thanks to Coding Badly for the ADC information. I'll investigate and see what I come up with. Initially I was thinking that I would need to worry much because I don't need 0.25 PSI precision. The plan was just to read a value and display it. Then when the next value is read, replace that value with the new one. Then I started thinking of R/C filters to condition the signal. Now this stuff. Yikes! 