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| author | Marti Bolivar <mbolivar@mit.edu> | 2010-10-20 06:46:52 -0400 | 
|---|---|---|
| committer | Marti Bolivar <mbolivar@mit.edu> | 2010-10-20 06:46:52 -0400 | 
| commit | 85c1c72db022bba891868afd3375e39dbe245701 (patch) | |
| tree | 9d86a3db825667362a8c89a98a205586015aec94 /source/arduino/unsignedlong.rst | |
| parent | abcfcc62cc62dfc088d30d5a6b6c36d6c89f7b07 (diff) | |
| download | librambutan-85c1c72db022bba891868afd3375e39dbe245701.tar.gz librambutan-85c1c72db022bba891868afd3375e39dbe245701.zip  | |
initial check-in of arduino docs in RST format (converted using wget+pandoc)
Diffstat (limited to 'source/arduino/unsignedlong.rst')
| -rw-r--r-- | source/arduino/unsignedlong.rst | 63 | 
1 files changed, 63 insertions, 0 deletions
diff --git a/source/arduino/unsignedlong.rst b/source/arduino/unsignedlong.rst new file mode 100644 index 0000000..1bdb434 --- /dev/null +++ b/source/arduino/unsignedlong.rst @@ -0,0 +1,63 @@ +.. _arduino-unsignedlong: + +unsigned long +============= + +Description +----------- + +Unsigned long variables are extended size variables for number +storage, and store 32 bits (4 bytes). Unlike standard longs +unsigned longs won't store negative numbers, making their range +from 0 to 4,294,967,295 (2^32 - 1). + + + +Example +------- + +:: + +    unsigned long time; +     +    void setup() +    { +      Serial.begin(9600); +    } +     +    void loop() +    { +      Serial.print("Time: "); +      time = millis(); +      //prints time since program started +      Serial.println(time); +      // wait a second so as not to send massive amounts of data +      delay(1000); +    } + +Syntax +------ + +:: + +        unsigned long var = val; + + + + +-  var - your long variable name +-  val - the value you assign to that variable + + + +See Also +-------- + + +-  `byte <http://arduino.cc/en/Reference/Byte>`_ +-  `int <http://arduino.cc/en/Reference/Int>`_ +-  `unsigned int <http://arduino.cc/en/Reference/UnsignedInt>`_ +-  `long <http://arduino.cc/en/Reference/Long>`_ +-  `Variable Declaration <http://arduino.cc/en/Reference/VariableDeclaration>`_ + +  | 
