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authorMarti Bolivar <mbolivar@mit.edu>2010-12-21 10:27:37 -0500
committerMarti Bolivar <mbolivar@mit.edu>2010-12-21 10:27:37 -0500
commitc45bccad44187da27505cf5808424e709e3f54a1 (patch)
tree18a459a50f8d0551ba046e30462c93999d982725 /docs/source/arduino/booleanvariables.rst
parent84fd2532a7f23d20354ff590790b3f892cb7e7d7 (diff)
parentd5ad2a27f4e69e6cc9324331945937c983c30366 (diff)
downloadlibrambutan-c45bccad44187da27505cf5808424e709e3f54a1.tar.gz
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Merge branch 'master' into debug-serialusb.
Chose debug-serialusb version in cases of conflict. Conflicts: libmaple/usb/usb_callbacks.c
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-.. _arduino-booleanvariables:
-
-boolean
-=======
-
-A **boolean** holds one of two values,
-`true <http://arduino.cc/en/Reference/Constants>`_ or
-`false <http://arduino.cc/en/Reference/Constants>`_. (Each boolean
-variable occupies one byte of memory.)
-
-
-
-Example
--------
-
-::
-
- int LEDpin = 5; // LED on pin 5
- int switchPin = 13; // momentary switch on 13, other side connected to ground
-
- boolean running = false;
-
- void setup()
- {
- pinMode(LEDpin, OUTPUT);
- pinMode(switchPin, INPUT);
- digitalWrite(switchPin, HIGH); // turn on pullup resistor
- }
-
- void loop()
- {
- if (digitalRead(switchPin) == LOW)
- { // switch is pressed - pullup keeps pin high normally
- delay(100); // delay to debounce switch
- running = !running; // toggle running variable
- digitalWrite(LEDpin, running) // indicate via LED
- }
- }
-
-
-
-
-
-
-See also
---------
-
-
-- `constants <http://arduino.cc/en/Reference/Constants>`_
-- `boolean operators <http://arduino.cc/en/Reference/Boolean>`_
-- `Variable Declaration <http://arduino.cc/en/Reference/VariableDeclaration>`_
-
-