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<p class='vspace'></p><h2>unsigned long</h2>
<h4>Description</h4>
<p>Unsigned long variables are extended size variables for number storage, and store 32 bits (4 bytes). Unlike standard longs unsigned longs won't store negative numbers, making their range from 0 to 4,294,967,295 (2^32 - 1).
</p>
<p class='vspace'></p><h4>Example</h4>
<pre>
unsigned long time;
void setup()
{
Serial.begin(9600);
}
void loop()
{
Serial.print("Time: ");
time = millis();
//prints time since program started
Serial.println(time);
// wait a second so as not to send massive amounts of data
delay(1000);
}
</pre><h4>Syntax</h4>
<pre> unsigned long var = val;
</pre>
<p class='vspace'></p><ul><li>var - your long variable name
</li><li>val - the value you assign to that variable
</li></ul><p class='vspace'></p><h4>See Also</h4>
<ul><li><a class='wikilink' href='Byte.html'>byte</a>
</li><li><a class='wikilink' href='Int.html'>int</a>
</li><li><a class='wikilink' href='UnsignedInt.html'>unsigned int</a>
</li><li><a class='wikilink' href='Long.html'>long</a>
</li><li><a class='urllink' href='VariableDeclaration.html' rel='nofollow'>Variable Declaration</a>
</li></ul><p class='vspace'></p><p><a class='wikilink' href='index.html'>Reference Home</a>
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<p class='vspace'></p><p><em>Corrections, suggestions, and new documentation should be posted to the <a class='urllink' href='http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?board=swbugs' rel='nofollow'>Forum</a>.</em>
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<p class='vspace'></p><p>The text of the Arduino reference is licensed under a
<a class='urllink' href='http://creativecommons.org/licenses/by-sa/3.0/' rel='nofollow'>Creative Commons Attribution-ShareAlike 3.0 License</a>. Code samples in the reference are released into the public domain.
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