I agree with the comments above, i will try and help anyone - but i dont agree with doing everything for them. If they have made an effort, mabey suggested parts they would like to use (if they work or not for that purpose will be another thing, but that is where *WE* can help)
There is no way that this assignment should have been handed out to someone who doesnt know enough (or hasnt googled enough) to have a basic grasp of it.
If the question was, i have to build a wind measurement device, i am using a PicXXFXXX, but am struggling with the wind speed, could you suggest an input device?
then we could all be more helpful