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+.. _arduino-while:
+
+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
+------
+
+::
+
+    while(expression){
+      // statement(s)
+    }
+
+
+
+Parameters
+----------
+
+expression - a (boolean) C statement that evaluates to true or
+false
+
+
+
+Example
+-------
+
+::
+
+    var = 0;
+    while(var < 200){
+      // do something repetitive 200 times
+      var++;
+    }
+