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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
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