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-rw-r--r--source/lang/api/digitalread.rst39
1 files changed, 16 insertions, 23 deletions
diff --git a/source/lang/api/digitalread.rst b/source/lang/api/digitalread.rst
index 3502587..ccf4a4c 100644
--- a/source/lang/api/digitalread.rst
+++ b/source/lang/api/digitalread.rst
@@ -8,51 +8,44 @@ 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 when the button is pressed::
-
- int ledPin = 13; // LED connected to Maple pin 13
- int buttonPin = 38; // BUT connected to Maple pin 38
+The following example turns the LED on or off when the button is pressed::
void setup() {
- pinMode(ledPin, OUTPUT);
- pinMode(buttonPin, INPUT);
+ pinMode(BOARD_LED_PIN, OUTPUT);
+ pinMode(BOARD_BUTTON_PIN, INPUT);
}
void loop() {
- int val = digitalRead(buttonPin); // reads the input pin
- digitalWrite(ledPin, val);
+ int val = digitalRead(BOARD_BUTTON_PIN); // reads the input pin
+ togglePin(BOARD_LED_PIN, val);
}
-Note
-----
-
-If the pin isn't connected to anything, ``digitalRead()`` can return
-either HIGH or LOW (and this can change in a way that seems random).
-
Arduino Compatibility
---------------------
The Maple version of ``digitalRead()`` is compatible with Arduino.
-
See Also
--------
-- :ref:`pinMode <lang-pinMode>`
-- :ref:`digitalWrite <lang-digitalWrite>`
-
-
-
-
+- :ref:`BOARD_BUTTON_PIN <lang-board-values-but>`
+- :ref:`lang-isButtonPressed`
+- :ref:`lang-pinmode`
+- :ref:`lang-digitalWrite`
+- :ref:`lang-togglepin`
-.. include:: cc-attribution.txt
+.. include:: /arduino-cc-attribution.txt