======while loops   ======

====Description   ====

**while** loops will loop continuously, and infinitely, until the expression inside the parenthesis, () becomes false. Something must change the tested variable, or the **while** loop will never exit. This could be in your code, such as an incremented variable, or an external condition, such as testing a sensor.

====Syntax   ====
<code arduino>while(expression){
  // statement(s)
}</code>

====Parameters   ====

expression - a (boolean) C statement that evaluates to true or false 

==== Example   ====

<code arduino>
var = 0;
while(var < 200){
  // do something repetitive 200 times
  var++;
}
</code>


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Source: arduino.cc