Reading data from differential pressure sensor

Other Hardware Sensors
1

I am trying to read data from differential pressure sensor to calculate wind speed using arduino due.
The sensor that i used is MPXV7002DP. I tried different methods and i didn't handle the right result.
Also, I tried the steps in the forums. However, my results are not correct. I guess that my problem is related to mapping.

In MPXV7002DP datasheet, it shows that transfer function is

Vout = VS × (0.2 × P(kPa)+0.5) ± 6.25% VFSS
VS = 5.0 Vdc

So, my question is how can I read data from differential pressure sensor?

2

So, my question is how can I read data from differential pressure sensor?

How did you connect it to your Arduino? Post a complete wiring diagram!

Where is the link to the sensors datasheet?

The formula for the pressure is simple: p = vout / vs * 5 - 0.5

3

pylon:
The formula for the pressure is simple: p = vout / vs * 5 - 0.5

No, it is p = 5*[(Vout/Vs)-0.5] or p = 5*Vout/Vs - 2.5

Examples: if Vout = 2.5V, p = 0 kPa. If Vout = 3.5V, p = 1 kPa. Both with Vs=5V.

4

That sensor is a poor match for a DUE.
The sensor is 5volt logic, and the Due is 3.3volt logic.
Variations in the sensor supply and in the Due supply will influence sensor output.
Best to use a 5volt processor, to preserve the ratiometric cancelation of sensor and A/D.
Leo..