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+.. highlight:: cpp
+
+.. _lang-digitalread:
+
+digitalRead()
+=============
+
+Reads the value from a specified digital pin, either :ref:`HIGH
+<lang-constants-high>` or :ref:`LOW <lang-constants-low>`.
+
+Library Documentation
+---------------------
+
+.. doxygenfunction:: digitalRead
+
+Discussion
+----------
+
+If the pin isn't connected to anything, ``digitalRead()`` can return
+either HIGH or LOW (and this will change in a way that seems random).
+
+Example
+-------
+
+The following example turns the LED on or off when the button is pressed::
+
+    void setup() {
+      pinMode(BOARD_LED_PIN, OUTPUT);
+      pinMode(BOARD_BUTTON_PIN, INPUT);
+    }
+
+    void loop() {
+      int val = digitalRead(BOARD_BUTTON_PIN);   // reads the input pin
+      togglePin(BOARD_LED_PIN);
+    }
+
+Arduino Compatibility
+---------------------
+
+The Maple version of ``digitalRead()`` is compatible with Arduino.
+
+See Also
+--------
+
+- :ref:`BOARD_BUTTON_PIN <lang-board-values-but>`
+- :ref:`lang-isButtonPressed`
+- :ref:`lang-pinmode`
+- :ref:`lang-digitalWrite`
+- :ref:`lang-togglepin`
+
+.. include:: /arduino-cc-attribution.txt