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authorMarti Bolivar <mbolivar@leaflabs.com>2011-05-09 16:43:27 -0400
committerMarti Bolivar <mbolivar@leaflabs.com>2011-05-09 16:49:08 -0400
commit19ea6ba4ea3f1ecb9830cf4d3e1366513f4f96e3 (patch)
treea43f7e0fb3650ca54f245b750a078a0e8c356504 /docs/source/lang/api/digitalread.rst
parent868fb1c273e562a1140abfa948022c9d4f55bccf (diff)
parent1e2e177f6dae62e040c674b617744c73be187062 (diff)
downloadlibrambutan-19ea6ba4ea3f1ecb9830cf4d3e1366513f4f96e3.tar.gz
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Merge branch 'refactor'
This merges the libmaple refactor work into master. The contents of libmaple proper (/libmaple/) are almost completely incompatible with previous APIs in master. See /docs/source/libmaple/overview.rst for more information on the new design. Wirish incompatibilities are limited to the HardwareTimer class; however, there are several new deprecations, most likely to be removed in 0.1.0.
Diffstat (limited to 'docs/source/lang/api/digitalread.rst')
-rw-r--r--docs/source/lang/api/digitalread.rst39
1 files changed, 16 insertions, 23 deletions
diff --git a/docs/source/lang/api/digitalread.rst b/docs/source/lang/api/digitalread.rst
index 3502587..ccf4a4c 100644
--- a/docs/source/lang/api/digitalread.rst
+++ b/docs/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