user-1: I want to read voltage level by my Arduino board please help in this regard. I am using this syntax.
volts = analogRead(A3);    // read the input pin
Serial.println(volts)


user33548: First off you need to convert your signal's units from analog -> voltage. Do this by using the following equation. I've modified your code so you can copy and paste it into your IDE. 
float volts = analogRead(A3) * ( 5.0 / 1024.0) ; 

Hope this helps! Good luck!

-1: <p>I want to read voltage level by my Arduino board please help in this regard. I am using this syntax.</p>

<pre><code>volts = analogRead(A3);    // read the input pin
Serial.println(volts)
</code></pre>
 33548: <p>First off you need to convert your signal's units from analog -> voltage. Do this by using the following equation. I've modified your code so you can copy and paste it into your IDE. </p>

<pre><code>float volts = analogRead(A3) * ( 5.0 / 1024.0) ; 
</code></pre>

<p>Hope this helps! Good luck!</p>
