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authorHanna Mendes Levitin <hanna@anomaly-3.local>2010-12-01 03:37:07 -0600
committerHanna Mendes Levitin <hanna@anomaly-3.local>2010-12-01 03:37:07 -0600
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+.. highlight:: cpp
+
+.. _lang-loop:
+
+loop()
+======
+
+After creating a :ref:`setup() <lang-setup>` function, which
+initializes your sketch, the ``loop()`` function gets called
+repeatedly, allowing your program to change and respond. Use it to
+actively control your Maple board.
+
+Example
+-------
+
+::
+
+
+ int buttonPin = 38;
+
+ // setup initializes serial and the button pin
+ void setup() {
+ SerialUSB.begin();
+ pinMode(buttonPin, INPUT);
+ }
+
+ // loop() checks the button pin each time it executes,
+ // and will print 'H' if it is pressed, 'L' otherwise
+ void loop() {
+ if (digitalRead(buttonPin) == HIGH) {
+ SerialUSB.println('H');
+ } else {
+ SerialUSB.println('L');
+ }
+
+ delay(1000);
+ }
+
+See Also
+--------
+
+- :ref:`setup() <lang-setup>`
+
+
+.. include:: cc-attribution.txt