I just got the op-amps, I'll give that a try before looking into an external ADC. It looks like a significant operation to get the ADC setup... The MAX187 looks like a popular choice.Any other suggestions before I go too far in the wrong direction ? (:
Because I'm trying to move the mouse on the screen, even if I get the op-amps to improve the signal I still only have 1024 different values on X and Y axes. With PC resolutions going easily up to 3200x1200, I would need more than that to get 1 pixel accuracy.
jds:Thanks for the suggestion. Very interesting thread, but I don't see how it applies to my situation at the moment.
Quotejds:Thanks for the suggestion. Very interesting thread, but I don't see how it applies to my situation at the moment.I think the hint is to look for an accelerometer with an SPI interface and let the accelerometer's built-in ADC handle the conversion, like this: http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1159029426-j (not jds)