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<div id="projectname">DHT sensor library
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<div class="header">
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<a href="#pub-methods">Public Member Functions</a> |
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<a href="class_d_h_t-members.html">List of all members</a> </div>
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<div class="headertitle">
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<div class="title">DHT Class Reference</div> </div>
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<div class="contents">
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<p>Class that stores state and functions for <a class="el" href="class_d_h_t.html" title="Class that stores state and functions for DHT. ">DHT</a>.
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<a href="class_d_h_t.html#details">More...</a></p>
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<p><code>#include <<a class="el" href="_d_h_t_8h_source.html">DHT.h</a>></code></p>
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<table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
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Public Member Functions</h2></td></tr>
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<tr class="memitem:afa429167bfeba848ab824fee0043f79d"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_h_t.html#afa429167bfeba848ab824fee0043f79d">DHT</a> (uint8_t pin, uint8_t type, uint8_t count=6)</td></tr>
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<tr class="memdesc:afa429167bfeba848ab824fee0043f79d"><td class="mdescLeft"> </td><td class="mdescRight">Instantiates a new <a class="el" href="class_d_h_t.html" title="Class that stores state and functions for DHT. ">DHT</a> class. <a href="#afa429167bfeba848ab824fee0043f79d">More...</a><br /></td></tr>
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<tr class="separator:afa429167bfeba848ab824fee0043f79d"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a5fea0c753872b62f0ea423b03b6a0ac0"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_h_t.html#a5fea0c753872b62f0ea423b03b6a0ac0">begin</a> (uint8_t usec=55)</td></tr>
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<tr class="memdesc:a5fea0c753872b62f0ea423b03b6a0ac0"><td class="mdescLeft"> </td><td class="mdescRight">Setup sensor pins and set pull timings. <a href="#a5fea0c753872b62f0ea423b03b6a0ac0">More...</a><br /></td></tr>
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<tr class="separator:a5fea0c753872b62f0ea423b03b6a0ac0"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a68be09105aa7d831bb473c9d774918cf"><td class="memItemLeft" align="right" valign="top">float </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_h_t.html#a68be09105aa7d831bb473c9d774918cf">readTemperature</a> (bool S=false, bool force=false)</td></tr>
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<tr class="memdesc:a68be09105aa7d831bb473c9d774918cf"><td class="mdescLeft"> </td><td class="mdescRight">Read temperature. <a href="#a68be09105aa7d831bb473c9d774918cf">More...</a><br /></td></tr>
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<tr class="separator:a68be09105aa7d831bb473c9d774918cf"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a582df4d39cd56b4acbd47fbe75aedcc3"><td class="memItemLeft" align="right" valign="top">float </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_h_t.html#a582df4d39cd56b4acbd47fbe75aedcc3">convertCtoF</a> (float)</td></tr>
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<tr class="memdesc:a582df4d39cd56b4acbd47fbe75aedcc3"><td class="mdescLeft"> </td><td class="mdescRight">Converts Celcius to Fahrenheit. <a href="#a582df4d39cd56b4acbd47fbe75aedcc3">More...</a><br /></td></tr>
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<tr class="separator:a582df4d39cd56b4acbd47fbe75aedcc3"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a90530e38a2f47893e4767dda1d00d2a4"><td class="memItemLeft" align="right" valign="top">float </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_h_t.html#a90530e38a2f47893e4767dda1d00d2a4">convertFtoC</a> (float)</td></tr>
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<tr class="memdesc:a90530e38a2f47893e4767dda1d00d2a4"><td class="mdescLeft"> </td><td class="mdescRight">Converts Fahrenheit to Celcius. <a href="#a90530e38a2f47893e4767dda1d00d2a4">More...</a><br /></td></tr>
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<tr class="separator:a90530e38a2f47893e4767dda1d00d2a4"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a47724a419777972edf68cd5b8aa85569"><td class="memItemLeft" align="right" valign="top">float </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_h_t.html#a47724a419777972edf68cd5b8aa85569">computeHeatIndex</a> (bool isFahrenheit=true)</td></tr>
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<tr class="memdesc:a47724a419777972edf68cd5b8aa85569"><td class="mdescLeft"> </td><td class="mdescRight">Compute Heat Index Simplified version that reads temp and humidity from sensor. <a href="#a47724a419777972edf68cd5b8aa85569">More...</a><br /></td></tr>
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<tr class="separator:a47724a419777972edf68cd5b8aa85569"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a0d23921017e3d827e49bfd136b40a6aa"><td class="memItemLeft" align="right" valign="top">float </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_h_t.html#a0d23921017e3d827e49bfd136b40a6aa">computeHeatIndex</a> (float temperature, float percentHumidity, bool isFahrenheit=true)</td></tr>
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<tr class="memdesc:a0d23921017e3d827e49bfd136b40a6aa"><td class="mdescLeft"> </td><td class="mdescRight">Compute Heat Index Using both Rothfusz and Steadman's equations (<a href="http://www.wpc.ncep.noaa.gov/html/heatindex_equation.shtml">http://www.wpc.ncep.noaa.gov/html/heatindex_equation.shtml</a>) <a href="#a0d23921017e3d827e49bfd136b40a6aa">More...</a><br /></td></tr>
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<tr class="separator:a0d23921017e3d827e49bfd136b40a6aa"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a5f8c84378abe4eeecf34f09e2cdf90a0"><td class="memItemLeft" align="right" valign="top">float </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_h_t.html#a5f8c84378abe4eeecf34f09e2cdf90a0">readHumidity</a> (bool force=false)</td></tr>
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<tr class="memdesc:a5f8c84378abe4eeecf34f09e2cdf90a0"><td class="mdescLeft"> </td><td class="mdescRight">Read Humidity. <a href="#a5f8c84378abe4eeecf34f09e2cdf90a0">More...</a><br /></td></tr>
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<tr class="separator:a5f8c84378abe4eeecf34f09e2cdf90a0"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a4c1508f2997a5d03968b3afdeae70e03"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_d_h_t.html#a4c1508f2997a5d03968b3afdeae70e03">read</a> (bool force=false)</td></tr>
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<tr class="memdesc:a4c1508f2997a5d03968b3afdeae70e03"><td class="mdescLeft"> </td><td class="mdescRight">Read value from sensor or return last one from less than two seconds. <a href="#a4c1508f2997a5d03968b3afdeae70e03">More...</a><br /></td></tr>
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<tr class="separator:a4c1508f2997a5d03968b3afdeae70e03"><td class="memSeparator" colspan="2"> </td></tr>
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</table>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
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<div class="textblock"><p>Class that stores state and functions for <a class="el" href="class_d_h_t.html" title="Class that stores state and functions for DHT. ">DHT</a>. </p>
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</div><h2 class="groupheader">Constructor & Destructor Documentation</h2>
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<a id="afa429167bfeba848ab824fee0043f79d"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#afa429167bfeba848ab824fee0043f79d">◆ </a></span>DHT()</h2>
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<div class="memitem">
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<td class="memname">DHT::DHT </td>
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<td>(</td>
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<td class="paramtype">uint8_t </td>
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<td class="paramname"><em>pin</em>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">uint8_t </td>
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<td class="paramname"><em>type</em>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">uint8_t </td>
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<td class="paramname"><em>count</em> = <code>6</code> </td>
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<tr>
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<td></td>
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<td>)</td>
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<td></td><td></td>
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</table>
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</div><div class="memdoc">
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<p>Instantiates a new <a class="el" href="class_d_h_t.html" title="Class that stores state and functions for DHT. ">DHT</a> class. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">pin</td><td>pin number that sensor is connected </td></tr>
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<tr><td class="paramname">type</td><td>type of sensor </td></tr>
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<tr><td class="paramname">count</td><td>number of sensors </td></tr>
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</table>
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</dd>
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</dl>
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</div>
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</div>
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<h2 class="groupheader">Member Function Documentation</h2>
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<a id="a5fea0c753872b62f0ea423b03b6a0ac0"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a5fea0c753872b62f0ea423b03b6a0ac0">◆ </a></span>begin()</h2>
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<td class="memname">void DHT::begin </td>
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<td>(</td>
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<td class="paramtype">uint8_t </td>
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<td class="paramname"><em>usec</em> = <code>55</code></td><td>)</td>
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<td></td>
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</div><div class="memdoc">
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<p>Setup sensor pins and set pull timings. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">usec</td><td>Optionally pass pull-up time (in microseconds) before <a class="el" href="class_d_h_t.html" title="Class that stores state and functions for DHT. ">DHT</a> reading starts. Default is 55 (see function declaration in <a class="el" href="_d_h_t_8h.html">DHT.h</a>). </td></tr>
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</table>
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</dd>
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</dl>
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</div>
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</div>
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<a id="a68be09105aa7d831bb473c9d774918cf"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a68be09105aa7d831bb473c9d774918cf">◆ </a></span>readTemperature()</h2>
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<td class="memname">float DHT::readTemperature </td>
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<td>(</td>
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<td class="paramtype">bool </td>
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<td class="paramname"><em>S</em> = <code>false</code>, </td>
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<td class="paramtype">bool </td>
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<td class="paramname"><em>force</em> = <code>false</code> </td>
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<td></td>
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<td>)</td>
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<td></td><td></td>
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</table>
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<p>Read temperature. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">S</td><td>Scale. Boolean value:<ul>
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<li>true = Fahrenheit</li>
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<li>false = Celcius </li>
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</ul>
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</td></tr>
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<tr><td class="paramname">force</td><td>true if in force mode </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd>Temperature value in selected scale </dd></dl>
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<a id="a582df4d39cd56b4acbd47fbe75aedcc3"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a582df4d39cd56b4acbd47fbe75aedcc3">◆ </a></span>convertCtoF()</h2>
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<td class="memname">float DHT::convertCtoF </td>
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<td>(</td>
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<td class="paramtype">float </td>
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<td class="paramname"><em>c</em></td><td>)</td>
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<td></td>
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<p>Converts Celcius to Fahrenheit. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">c</td><td>value in Celcius </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd>float value in Fahrenheit </dd></dl>
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</div>
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<a id="a90530e38a2f47893e4767dda1d00d2a4"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a90530e38a2f47893e4767dda1d00d2a4">◆ </a></span>convertFtoC()</h2>
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<div class="memitem">
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<tr>
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<td class="memname">float DHT::convertFtoC </td>
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<td>(</td>
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<td class="paramtype">float </td>
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<td class="paramname"><em>f</em></td><td>)</td>
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<td></td>
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</div><div class="memdoc">
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<p>Converts Fahrenheit to Celcius. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">f</td><td>value in Fahrenheit </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd>float value in Celcius </dd></dl>
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</div>
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</div>
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<a id="a47724a419777972edf68cd5b8aa85569"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a47724a419777972edf68cd5b8aa85569">◆ </a></span>computeHeatIndex() <span class="overload">[1/2]</span></h2>
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<td class="memname">float DHT::computeHeatIndex </td>
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<td>(</td>
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<td class="paramtype">bool </td>
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<td class="paramname"><em>isFahrenheit</em> = <code>true</code></td><td>)</td>
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<td></td>
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</tr>
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</table>
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</div><div class="memdoc">
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<p>Compute Heat Index Simplified version that reads temp and humidity from sensor. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">isFahrenheit</td><td>true if fahrenheit, false if celcius (default true) </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd>float heat index </dd></dl>
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</div>
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</div>
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<a id="a0d23921017e3d827e49bfd136b40a6aa"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a0d23921017e3d827e49bfd136b40a6aa">◆ </a></span>computeHeatIndex() <span class="overload">[2/2]</span></h2>
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<div class="memitem">
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<td class="memname">float DHT::computeHeatIndex </td>
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<td>(</td>
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<td class="paramtype">float </td>
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<td class="paramname"><em>temperature</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">float </td>
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<td class="paramname"><em>percentHumidity</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">bool </td>
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<td class="paramname"><em>isFahrenheit</em> = <code>true</code> </td>
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</tr>
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<tr>
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<td></td>
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<td>)</td>
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<td></td><td></td>
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</tr>
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</table>
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</div><div class="memdoc">
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<p>Compute Heat Index Using both Rothfusz and Steadman's equations (<a href="http://www.wpc.ncep.noaa.gov/html/heatindex_equation.shtml">http://www.wpc.ncep.noaa.gov/html/heatindex_equation.shtml</a>) </p>
|
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<dl class="params"><dt>Parameters</dt><dd>
|
||
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<table class="params">
|
||
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<tr><td class="paramname">temperature</td><td>temperature in selected scale </td></tr>
|
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<tr><td class="paramname">percentHumidity</td><td>humidity in percent </td></tr>
|
||
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<tr><td class="paramname">isFahrenheit</td><td>true if fahrenheit, false if celcius </td></tr>
|
||
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</table>
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</dd>
|
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</dl>
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<dl class="section return"><dt>Returns</dt><dd>float heat index </dd></dl>
|
||
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||
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</div>
|
||
|
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</div>
|
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<a id="a5f8c84378abe4eeecf34f09e2cdf90a0"></a>
|
||
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<h2 class="memtitle"><span class="permalink"><a href="#a5f8c84378abe4eeecf34f09e2cdf90a0">◆ </a></span>readHumidity()</h2>
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<div class="memitem">
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<table class="memname">
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<tr>
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<td class="memname">float DHT::readHumidity </td>
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<td>(</td>
|
||
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<td class="paramtype">bool </td>
|
||
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|
<td class="paramname"><em>force</em> = <code>false</code></td><td>)</td>
|
||
|
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<td></td>
|
||
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</tr>
|
||
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</table>
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</div><div class="memdoc">
|
||
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||
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<p>Read Humidity. </p>
|
||
|
|
<dl class="params"><dt>Parameters</dt><dd>
|
||
|
|
<table class="params">
|
||
|
|
<tr><td class="paramname">force</td><td>force read mode </td></tr>
|
||
|
|
</table>
|
||
|
|
</dd>
|
||
|
|
</dl>
|
||
|
|
<dl class="section return"><dt>Returns</dt><dd>float value - humidity in percent </dd></dl>
|
||
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|
||
|
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</div>
|
||
|
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</div>
|
||
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<a id="a4c1508f2997a5d03968b3afdeae70e03"></a>
|
||
|
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<h2 class="memtitle"><span class="permalink"><a href="#a4c1508f2997a5d03968b3afdeae70e03">◆ </a></span>read()</h2>
|
||
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<div class="memitem">
|
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|
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|
||
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<tr>
|
||
|
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<td class="memname">bool DHT::read </td>
|
||
|
|
<td>(</td>
|
||
|
|
<td class="paramtype">bool </td>
|
||
|
|
<td class="paramname"><em>force</em> = <code>false</code></td><td>)</td>
|
||
|
|
<td></td>
|
||
|
|
</tr>
|
||
|
|
</table>
|
||
|
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</div><div class="memdoc">
|
||
|
|
|
||
|
|
<p>Read value from sensor or return last one from less than two seconds. </p>
|
||
|
|
<dl class="params"><dt>Parameters</dt><dd>
|
||
|
|
<table class="params">
|
||
|
|
<tr><td class="paramname">force</td><td>true if using force mode </td></tr>
|
||
|
|
</table>
|
||
|
|
</dd>
|
||
|
|
</dl>
|
||
|
|
<dl class="section return"><dt>Returns</dt><dd>float value </dd></dl>
|
||
|
|
|
||
|
|
</div>
|
||
|
|
</div>
|
||
|
|
<hr/>The documentation for this class was generated from the following files:<ul>
|
||
|
|
<li><a class="el" href="_d_h_t_8h_source.html">DHT.h</a></li>
|
||
|
|
<li><a class="el" href="_d_h_t_8cpp.html">DHT.cpp</a></li>
|
||
|
|
</ul>
|
||
|
|
</div><!-- contents -->
|
||
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<img class="footer" src="doxygen.png" alt="doxygen"/>
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</a> 1.8.13
|
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</html>
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