> The MPX4115A is calibrated and compensated. Then pressure measured is
correct, so how do I know when the change if from
> the altitude or a storm? If I am not moving then no problem. The altitude
is the constant, If there is no storm then the
> relative barometric pressure is the constant.

That's why airports have barometers so that pilots can compensate their
alitmeter to the pressure at a known altitude for the location they care
about.


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Embed Inc, embedded system specialists in Littleton Massachusetts
(978) 742-9014, http://www.embedinc.com

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