Help Reading Voltage

Projects Interfacing w/ Software on the Computer
1

I am trying to use the Arduino to read the Voltage produced by my turbine. It is in A/C current.

The code I wrote out is:

#include "LCDout.h"

void setup()
{
}

void loop()
{
lcd << 0.0049*(analogRead (2)) << " V";
delay (100);
lcd.cls ();
}

But on my LCD screen it just constantly gives random numbers, I was wondering if there is another way to go about this?

2

You can not read an AC voltage with Arduinos analog pins without doing something to it first.

search the forum for "reading ac voltage"