15020aa891
Fix #44 by conditionally excluding unused port and bitmask state on non-AVR platforms.
2015-10-12 21:30:01 -07:00
56058fecc5
Bump library to 1.2.2 version.
2015-10-12 18:39:28 -07:00
d71288af17
Merge branch 'jmdana-master'
2015-10-12 18:38:58 -07:00
ce3190f65c
Switch back to integer division in array indexing.
2015-10-12 18:37:54 -07:00
5bc0a5c796
Divisions turned into multiplications
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As correctly stated by Mausy5043, the division is quite slow in most
microcontrollers, so I have replaced them with multiplications.
2015-10-06 23:42:19 +01:00
5fb1668822
Merge branch 'jmdana-master'
2015-10-05 17:55:14 -07:00
c57f0c8c29
Bump version to 1.2.1
2015-10-05 17:54:59 -07:00
51a8b814ac
Divisions have been replaced by multiplications.
2015-10-03 13:42:09 +01:00
36fb16274b
DHT::computeHeatIndex has been modified so it uses both Rothfusz and
...
Steadman's equations. As a result, it allows a larger range of
temperatures and more accurate results for extreme conditions.
2015-10-02 21:50:43 +01:00
6c0c723907
Merge branch 'matthijskooijman-fixes'
2015-09-15 12:26:54 -07:00
232ad0cd70
Bump version to 1.2.0 after integrating optimizations from matthijskooijman.
2015-09-15 12:26:38 -07:00
f9c3f323e3
Use INPUT_PULLUP
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Previously, the mode was configured to INPUT and then written HIGH,
which works on AVR but isn't very portable. Instead, this uses the
INPUT_PULLUP pin mode (available since Arduino 1.0.1) which is portable.
2015-07-24 21:44:41 +02:00
45a20da301
Shrink DHT::data to 5 bytes
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There's only 5 bytes of data being transferred (2x2 bytes of data, 1
byte checksum), so no need to keep a useless byte.
2015-07-24 21:43:52 +02:00
5973929e63
Remove the firstreading variable
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By cleverly setting _lastreadtime in begin() to make sure that it looks
like the last read was alrady 2000 ms ago, even on startup when millis()
still returns 0, there is no longer a need to keep a separate
firstreading variable, saving a byte of memory and a bit of code.
2015-07-24 21:42:58 +02:00
f1b79028ea
Clean up two-second interval check
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There was some handling of millis() overflow that is not needed.
Standard unsigned subtraction and wraparound already works as expected,
so this extra check can be removed (it even hurts, since it introduces 2
seconds after a wraparound where no new data will be read, even if it
could otherwise happen).
Also, this prevents calling millis() a second time, since its value is
already known.
2015-07-24 21:41:19 +02:00
04905bc5cd
Add force parameter to read methods
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This allows forcing a read, even if the previous read was less than 2
seconds ago. This is useful in cases where the millis() timer is not
reliable, such as when sleeping. In this case, it is up to the caller to
ensure that at least 2 seconds elapse between calls with force set to
true.
2015-07-24 21:40:22 +02:00
5cd78aead6
Fix merge conflict with interrupt disable lock.
2015-07-22 12:22:35 -07:00
85d85170bd
Fix #37 by optimizing pulse read to use direct port access on AVR, stops checksum failures from missed signals.
2015-07-22 12:13:56 -07:00
9419315c50
Merge pull request #36 from Zirientis/master
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Cause interrupts to be reenabled if a timeout occurs while waiting for the sensor
2015-07-01 22:16:10 -07:00
a2208eb813
Cause interrupts to be reenabled if a timeout occurs while waiting for the sensor.
2015-07-01 17:58:17 -07:00
a1393fc0ff
Merge branch 'MyIgel-master'
2015-06-26 15:56:28 -07:00
ef9590ad96
Fix merge conflicts, make compute heat index default to Fahrenheit to not break old code that assumes default is Fahrenheit.
2015-06-26 15:56:04 -07:00
b6925ee001
Merge branch 'dynamic_timing'
2015-06-26 15:17:28 -07:00
729895339c
Integrate keywords.txt from pull #31
2015-06-26 15:15:45 -07:00
9d7a9da8ae
Refactor algorithm to dynamically adjust to faster/slower processors. Fix #35 #30 .
2015-06-26 15:14:17 -07:00
a67e1a7e06
Automatic library.properties generation.
2015-03-31 12:09:43 -07:00
25942ac8b9
Added support for Celsius in computeHeatIndex
2014-11-01 12:27:16 +01:00
fcd865b3bc
Update example to note cycle threshold parameter for Arduino Due.
2014-07-26 13:58:45 -07:00
7f7425f11e
Resolve #24 by adding convert F to C function.
2014-07-25 19:34:35 -07:00
f2a48d6267
Resolve issue #20 by moving delay after 2 second read check to make read return quickly.
2014-06-02 13:41:12 -07:00
9611395a77
Switch to use noInterrupts and interrupts function. make read() public. This resolves pull #15 .
2014-06-02 13:13:50 -07:00
ce05c3536c
Remove serial.print from library and update example error handling. Resolves issue #11 and #13 .
2014-06-02 13:03:27 -07:00
ffac2f15b7
Update example to show temp in Fahrenheit and add computeHeatIndex function to resolve issue #9 .
2014-06-02 12:54:54 -07:00
633eb08654
Change example extension from .pde to .ino.
2014-06-02 12:36:44 -07:00
26e2bc1d79
Merge pull request #8 from soerup/master
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Support for non 16 MHz devices by adding extra parameter to constructor
2013-01-02 07:58:47 -08:00
ad73fab623
Support for non 16mhz devices
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Added constructor parameter to allow for different timing needs. It has
the a default value of 6 which is the original value, so it should be
backwards compatible
2012-12-29 19:14:51 +01:00
71ee113a7b
Merge pull request #4 from Jearil/master
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Adding #ifndef DHT_H to header file
2012-08-26 18:42:37 -07:00
fca71323bd
Prevent dht.h being imported multiple times
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Added a basic #ifndef DHT_H to the dht.h file so that if you have a
larger program and want to access the sensor from a different file, you
don't import it twice.
2012-07-26 21:39:47 -07:00
53e6481231
Default argument for compatibility with old sketches
2012-02-23 11:43:30 -08:00
14d816819c
Merge pull request #3 from leprasmurf/master
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Convert Celcius to Fahrenheit.
2012-02-23 11:27:41 -08:00
a3d1dc78bf
Added option for converting to Fahrenheit
2012-02-22 22:26:16 -05:00
8f46f27b66
Modified readTemperature() prototype. Added prototype for new function.
2012-02-22 22:20:19 -05:00
cffd745009
Arduino 1.0 compliant
2011-12-02 19:50:02 -08:00
31b6b45352
clarified the pullup
2011-06-22 16:28:22 -04:00
b05219ab42
added mini readme
2011-06-22 16:12:33 -04:00
53f985c6b4
Example sketch
2011-06-22 16:09:13 -04:00
57ac62dab7
fully tested working DHT11/21/22 with built in '2 second' timer
2011-06-22 13:11:06 -04:00
7ecd3141a8
touch commit
2011-06-20 19:47:50 -04:00
