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-.. _arduino-digitalwrite:
-
-digitalWrite()
-==============
-
-Description
------------
-
-Write a `HIGH <http://arduino.cc/en/Reference/Constants>`_ or a
-`LOW <http://arduino.cc/en/Reference/Constants>`_ value to a
-digital pin.
-
-
-
-If the pin has been configured as an OUTPUT with
-`pinMode <http://arduino.cc/en/Reference/PinMode>`_\ (), its voltage
-will be set to the corresponding value: 5V (or 3.3V on 3.3V boards)
-for HIGH, 0V (ground) for LOW.
-
-
-
-If the pin is configured as an INPUT, writing a HIGH value with
-digitalWrite() will enable an internal 20K pullup resistor (see the
-`tutorial on digital pins <http://arduino.cc/en/Tutorial/DigitalPins>`_).
-Writing LOW will disable the pullup. The pullup resistor is enough
-to light an LED dimly, so if LEDs appear to work, but very dimly,
-this is a likely cause. The remedy is to set the pin to an output
-with the pinMode() function.
-
-
-
-**NOTE:** Digital pin 13 is harder to use as a digital input than
-the other digital pins because it has an LED and resistor attached
-to it that's soldered to the board on most boards. If you enable
-its internal 20k pull-up resistor, it will hang at around 1.7 V
-instead of the expected 5V because the onboard LED and series
-resistor pull the voltage level down, meaning it always returns
-LOW. If you must use pin 13 as a digital input, use an external
-pull down resistor.
-
-
-
-Syntax
-------
-
-digitalWrite(pin, value)
-
-
-
-Parameters
-----------
-
-pin: the pin number
-
-
-
-value: `HIGH <http://arduino.cc/en/Reference/Constants>`_ or
-`LOW <http://arduino.cc/en/Reference/Constants>`_
-
-
-
-Returns
--------
-
-none
-
-
-
-Example
--------
-
-::
-
-     
-    int ledPin = 13;                 // LED connected to digital pin 13
-    
-    void setup()
-    {
-      pinMode(ledPin, OUTPUT);      // sets the digital pin as output
-    }
-    
-    void loop()
-    {
-      digitalWrite(ledPin, HIGH);   // sets the LED on
-      delay(1000);                  // waits for a second
-      digitalWrite(ledPin, LOW);    // sets the LED off
-      delay(1000);                  // waits for a second
-    }
-
-
-
-Sets pin 13 to HIGH, makes a one-second-long delay, and sets the
-pin back to LOW.
-
-
-
-Note
-----
-
-The analog input pins can be used as digital pins, referred to as
-A0, A1, etc.
-
-
-
-See also
---------
-
-
--  `pinMode <http://arduino.cc/en/Reference/PinMode>`_\ ()
--  `digitalRead <http://arduino.cc/en/Reference/DigitalRead>`_\ ()
--  `Tutorial: Digital Pins <http://arduino.cc/en/Tutorial/DigitalPins>`_
-
-