Chris, > The trick with using a uP and it's built-in A/D converters is scale. You > want the limited 10-bits of revolution to fall over the operating range > which is very narrow, like 1C. Anything outside of that is either 0000 or > 1111 and only seen at start-up., So at start up the the controller is on > "bang-bang" mode then later you have milli-degree resolution over your 1C > range. Basically you are measuring noise. but your $2 uP can take 100,000 > measurments per second and putt tour a digital filter.
I have seen but not used the AREF pins on Arduino and similar uPs; as you lower AREF, do you lose any sort of accuracy? Is there a practical minimum for what voltage you can feed into AREF? -Ian R. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
