I'm using mMPXV7002DP and I'm trying to convert the output to measure airspeed. knowing the output pin connected to ADC with 3.3V refrence. how can I convert the output value to measure airspeed?
First off, have a look at Dynamic pressure - Wikipedia.
Dynamic pressure = 0.5 x density x velocity x velocityYou can use 1.225kg/m3 for sea level air density. Velocity should be m/s. Pressure will be in Pascals.
Then you need to know how many Pascals correspond to 1 ADC count.
For example, if you have an 8-bit ADC with a 3.3V reference and considering typical sensitivity of 1V/kPa , then 1 ADC count corresponds to 12.89Pa.
Hope it helps.
Thank you Tomas, this is really helpful I understand everything right now.
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