Wind speed meter

Hey guys, am struggling to use a pressure board V20 on Arduino Mega ADK to create an accurate flow meter. I have created it on Ardupilot but now i must use the Arduino.
can some one please post me some easy way of going through this project because my project is tight.
Thank you alot
:~

because my project is tight.

What does this mean?

a pressure board V20

What is this? Links are useful, if you want us to look at the hardware.

I have created it on Ardupilot

It? It is a pronoun with no referent.

This seems to answer everything:

https://code.google.com/p/ardupilot-mega/wiki/Airspeed