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webduino.module.Photocell.html
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<!DOCTYPE html>
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<meta charset="utf-8">
<title>webduino.module.Photocell - webduino-js</title>
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<h1>webduino.module.Photocell</h1>
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Extends <a href="../classes/webduino.Module.html" class="crosslink">webduino.Module</a>
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<div class="yuidoc-class-description">
<p>The Photocell class.</p>
<p>Photocell is small, inexpensive, low-power sensor that allow you to detect light.</p>
</div>
<!-- table of contents -->
<div id="class-toc" class="page-section">
<h2>Table of Contents</h2>
<ul>
<li>
<strong>Methods</strong>
<ul>
<li><a href="#method-addListener"><span class="im">addListener</span>(<span class="ia">type</span><span class="ia">listener</span>)</a></li>
<li><a href="#method-emit"><span class="im">emit</span>(<span class="ia">type</span><span class="ia">object,...</span>)</a></li>
<li><a href="#method-listeners"><span class="im">listeners</span>(<span class="ia">type</span>)</a></li>
<li><a href="#method-measure"><span class="im">measure</span>(<span class="ia">callback</span>)</a></li>
<li><a href="#method-off"><span class="im">off</span>()</a></li>
<li><a href="#method-on"><span class="im">on</span>(<span class="ia">callback</span>)</a></li>
<li><a href="#method-once"><span class="im">once</span>(<span class="ia">type</span><span class="ia">listener</span>)</a></li>
<li><a href="#method-removeAllListeners"><span class="im">removeAllListeners</span>(<span class="ia">type</span>)</a></li>
<li><a href="#method-removeListener"><span class="im">removeListener</span>(<span class="ia">type</span><span class="ia">listener</span>)</a></li>
<li><a href="#method-setMaxListeners"><span class="im">setMaxListeners</span>(<span class="ia">n</span>)</a></li>
</ul>
</li>
<li>
<strong>Attributes</strong>
<ul>
<li><a href="#attr-state"><span class="iattr">state</span></a></li>
<li><a href="#attr-type"><span class="iattr">type</span></a></li>
</ul>
</li>
</ul>
</div>
<!-- details -->
<div class="constructor yuidoc-class-constructor page-section">
<h2>Constructor</h2>
<div class="item-list">
<div id="method-webduino.module.Photocell" class="method item">
<div class="method-signature">
<span class="name"><code>webduino.module.Photocell</code></span>
<div class="args">
<span class="paren">(</span><ul class="args-list inline commas">
<li class="arg">
<code>board</code>
</li>
<li class="arg">
<code>analogPinNumber</code>
</li>
</ul><span class="paren">)</span>
</div>
</div>
<div class="meta">
<p>
Defined in
<a href="../files/src_module_Photocell.js.html#l24"><code>src/module/Photocell.js:24</code></a>
</p>
</div>
<div class="params">
<h4>Parameters:</h4>
<ul class="params-list">
<li class="param">
<code class="param-name">board</code>
<span class="type"><a href="../classes/webduino.Board.html" class="crosslink">webduino.Board</a></span>
<div class="param-description"><p>Board that the photocell is attached to.</p>
</div>
</li>
<li class="param">
<code class="param-name">analogPinNumber</code>
<span class="type">Integer</span>
<div class="param-description"><p>The pin that the photocell is connected to.</p>
</div>
</li>
</ul>
</div>
</div>
</div>
</div>
<div id="methods" class="page-section">
<h2 class="off-left">Methods</h2>
<div class="item-list">
<div id="method-addListener" class="method item inherited">
<div class="method-signature">
<span class="name"><code>addListener</code></span>
<div class="args">
<span class="paren">(</span><ul class="args-list inline commas">
<li class="arg">
<code>type</code>
</li>
<li class="arg">
<code>listener</code>
</li>
</ul><span class="paren">)</span>
</div>
</div>
<div class="meta">
<p>Inherited from
<a href="../classes/webduino.EventEmitter.html#method_addListener">webduino.EventEmitter</a>:
<a href="../files/src_core_EventEmitter.js.html#l117"><code>src/core/EventEmitter.js:117</code></a>
</p>
</div>
<div class="description"><p>Add a listener for a certain type of event.</p>
</div>
<div class="params">
<h4>Parameters:</h4>
<ul class="params-list">
<li class="param">
<code class="param-name">type</code>
<span class="type">String</span>
<div class="param-description"><p>Event type.</p>
</div>
</li>
<li class="param">
<code class="param-name">listener</code>
<span class="type">Function</span>
<div class="param-description"><p>Event listener.</p>
</div>
</li>
</ul>
</div>
</div>
<div id="method-emit" class="method item inherited">
<div class="method-signature">
<span class="name"><code>emit</code></span>
<div class="args">
<span class="paren">(</span><ul class="args-list inline commas">
<li class="arg">
<code>type</code>
</li>
<li class="arg">
<code class="optional">object,...</code>
</li>
</ul><span class="paren">)</span>
</div>
</div>
<div class="meta">
<p>Inherited from
<a href="../classes/webduino.EventEmitter.html#method_emit">webduino.EventEmitter</a>:
<a href="../files/src_core_EventEmitter.js.html#l58"><code>src/core/EventEmitter.js:58</code></a>
</p>
</div>
<div class="description"><p>Emit an event of certain type.</p>
</div>
<div class="params">
<h4>Parameters:</h4>
<ul class="params-list">
<li class="param">
<code class="param-name">type</code>
<span class="type">String</span>
<div class="param-description"><p>Event type.</p>
</div>
</li>
<li class="param">
<code class="param-name optional">[object,...]</code>
<span class="type">Object</span>
<span class="flag optional" title="This parameter is optional.">optional</span>
<div class="param-description"><p>Event object(s).</p>
</div>
</li>
</ul>
</div>
</div>
<div id="method-listeners" class="method item inherited">
<div class="method-signature">
<span class="name"><code>listeners</code></span>
<div class="args">
<span class="paren">(</span><ul class="args-list inline commas">
<li class="arg">
<code>type</code>
</li>
</ul><span class="paren">)</span>
</div>
</div>
<div class="meta">
<p>Inherited from
<a href="../classes/webduino.EventEmitter.html#method_listeners">webduino.EventEmitter</a>:
<a href="../files/src_core_EventEmitter.js.html#l310"><code>src/core/EventEmitter.js:310</code></a>
</p>
</div>
<div class="description"><p>Return the listener list bound to certain type of event.</p>
</div>
<div class="params">
<h4>Parameters:</h4>
<ul class="params-list">
<li class="param">
<code class="param-name">type</code>
<span class="type">String</span>
<div class="param-description"><p>Evnet type.</p>
</div>
</li>
</ul>
</div>
</div>
<div id="method-measure" class="method item">
<div class="method-signature">
<span class="name"><code>measure</code></span>
<div class="args">
<span class="paren">(</span><ul class="args-list inline commas">
<li class="arg">
<code class="optional">callback</code>
</li>
</ul><span class="paren">)</span>
</div>
</div>
<div class="meta">
<p>
Defined in
<a href="../files/src_module_Photocell.js.html#l73"><code>src/module/Photocell.js:73</code></a>
</p>
</div>
<div class="description"><p>Start detection.</p>
</div>
<div class="params">
<h4>Parameters:</h4>
<ul class="params-list">
<li class="param">
<code class="param-name optional">[callback]</code>
<span class="type">Function</span>
<span class="flag optional" title="This parameter is optional.">optional</span>
<div class="param-description"><p>Callback after starting detection.</p>
</div>
</li>
</ul>
</div>
</div>
<div id="method-off" class="method item">
<div class="method-signature">
<span class="name"><code>off</code></span>
<span class="paren">()</span>
</div>
<div class="meta">
<p>
Defined in
<a href="../files/src_module_Photocell.js.html#l103"><code>src/module/Photocell.js:103</code></a>
</p>
</div>
<div class="description"><p>Stop detection.</p>
</div>
</div>
<div id="method-on" class="method item deprecated">
<div class="method-signature">
<span class="name"><code>on</code></span>
<div class="args">
<span class="paren">(</span><ul class="args-list inline commas">
<li class="arg">
<code class="optional">callback</code>
</li>
</ul><span class="paren">)</span>
</div>
</div>
<span class="flag deprecated" title="`on()` is deprecated, use `measure()` instead.">deprecated</span>
<div class="meta">
<p>Inherited from
<a href="../classes/webduino.EventEmitter.html#method_on">
webduino.EventEmitter
</a>
but overwritten in
<a href="../files/src_module_Photocell.js.html#l80"><code>src/module/Photocell.js:80</code></a>
</p>
<p>Deprecated: `on()` is deprecated, use `measure()` instead.</p>
</div>
<div class="description"><p>Start detection.</p>
</div>
<div class="params">
<h4>Parameters:</h4>
<ul class="params-list">
<li class="param">
<code class="param-name optional">[callback]</code>
<span class="type">Function</span>
<span class="flag optional" title="This parameter is optional.">optional</span>
<div class="param-description"><p>Callback after starting detection.</p>
</div>
</li>
</ul>
</div>
</div>
<div id="method-once" class="method item inherited">
<div class="method-signature">
<span class="name"><code>once</code></span>
<div class="args">
<span class="paren">(</span><ul class="args-list inline commas">
<li class="arg">
<code>type</code>
</li>
<li class="arg">
<code>listener</code>
</li>
</ul><span class="paren">)</span>
</div>
</div>
<div class="meta">
<p>Inherited from
<a href="../classes/webduino.EventEmitter.html#method_once">webduino.EventEmitter</a>:
<a href="../files/src_core_EventEmitter.js.html#l183"><code>src/core/EventEmitter.js:183</code></a>
</p>
</div>
<div class="description"><p>Add a one-time listener for a certain type of event.</p>
</div>
<div class="params">
<h4>Parameters:</h4>
<ul class="params-list">
<li class="param">
<code class="param-name">type</code>
<span class="type">String</span>
<div class="param-description"><p>Event type.</p>
</div>
</li>
<li class="param">
<code class="param-name">listener</code>
<span class="type">Function</span>
<div class="param-description"><p>Event listener.</p>
</div>
</li>
</ul>
</div>
</div>
<div id="method-removeAllListeners" class="method item inherited">
<div class="method-signature">
<span class="name"><code>removeAllListeners</code></span>
<div class="args">
<span class="paren">(</span><ul class="args-list inline commas">
<li class="arg">
<code>type</code>
</li>
</ul><span class="paren">)</span>
</div>
</div>
<div class="meta">
<p>Inherited from
<a href="../classes/webduino.EventEmitter.html#method_removeAllListeners">webduino.EventEmitter</a>:
<a href="../files/src_core_EventEmitter.js.html#l264"><code>src/core/EventEmitter.js:264</code></a>
</p>
</div>
<div class="description"><p>Remove all listeners of certain type.</p>
</div>
<div class="params">
<h4>Parameters:</h4>
<ul class="params-list">
<li class="param">
<code class="param-name">type</code>
<span class="type">String</span>
<div class="param-description"><p>Event type.</p>
</div>
</li>
</ul>
</div>
</div>
<div id="method-removeListener" class="method item inherited">
<div class="method-signature">
<span class="name"><code>removeListener</code></span>
<div class="args">
<span class="paren">(</span><ul class="args-list inline commas">
<li class="arg">
<code>type</code>
</li>
<li class="arg">
<code>listener</code>
</li>
</ul><span class="paren">)</span>
</div>
</div>
<div class="meta">
<p>Inherited from
<a href="../classes/webduino.EventEmitter.html#method_removeListener">webduino.EventEmitter</a>:
<a href="../files/src_core_EventEmitter.js.html#l211"><code>src/core/EventEmitter.js:211</code></a>
</p>
</div>
<div class="description"><p>Remove a listener for certain type of event.</p>
</div>
<div class="params">
<h4>Parameters:</h4>
<ul class="params-list">
<li class="param">
<code class="param-name">type</code>
<span class="type">String</span>
<div class="param-description"><p>Event type.</p>
</div>
</li>
<li class="param">
<code class="param-name">listener</code>
<span class="type">Function</span>
<div class="param-description"><p>Event listener.</p>
</div>
</li>
</ul>
</div>
</div>
<div id="method-setMaxListeners" class="method item inherited">
<div class="method-signature">
<span class="name"><code>setMaxListeners</code></span>
<div class="args">
<span class="paren">(</span><ul class="args-list inline commas">
<li class="arg">
<code>n</code>
</li>
</ul><span class="paren">)</span>
</div>
</div>
<div class="meta">
<p>Inherited from
<a href="../classes/webduino.EventEmitter.html#method_setMaxListeners">webduino.EventEmitter</a>:
<a href="../files/src_core_EventEmitter.js.html#l45"><code>src/core/EventEmitter.js:45</code></a>
</p>
</div>
<div class="description"><p>Set maximum number of listeners that is allow to bind on an emitter.</p>
</div>
<div class="params">
<h4>Parameters:</h4>
<ul class="params-list">
<li class="param">
<code class="param-name">n</code>
<span class="type">Number</span>
<div class="param-description"><p>Number of listeners.</p>
</div>
</li>
</ul>
</div>
</div>
</div>
</div>
<div id="attrs" class="page-section">
<h2 class="off-left">Attributes</h2>
<div id="attr-state" class="attr item">
<a name="config_state"></a>
<h3 class="name"><code>state</code></h3>
<span class="type">String <code>on</code> or <code>off</code></span>
<div class="meta">
<p>
Defined in
<a href="../files/src_module_Photocell.js.html#l57"><code>src/module/Photocell.js:57</code></a>
</p>
</div>
<div class="description">
<p>The state indicating whether the module is measuring.</p>
</div>
</div>
<div id="attr-type" class="attr item inherited">
<a name="config_type"></a>
<h3 class="name"><code>type</code></h3>
<span class="type">String</span>
<span class="flag readonly">readonly</span>
<div class="meta">
<p>Inherited from
<a href="../classes/webduino.Module.html#attr_type">webduino.Module</a>:
<a href="../files/src_core_Module.js.html#l30"><code>src/core/Module.js:30</code></a>
</p>
</div>
<div class="description">
<p>Type of the module.</p>
</div>
</div>
</div>
<div id="events" class="page-section">
<h2 class="off-left">Events</h2>
<div class="item-list">
<div id="event_PhotocellEvent.MESSAGE" class="events item">
<h3 class="name"><code>PhotocellEvent.MESSAGE</code></h3>
<span class="type"></span>
<div class="meta">
<p>
Defined in
<a href="../files/src_module_Photocell.js.html#l16"><code>src/module/Photocell.js:16</code></a>
</p>
</div>
<div class="description">
<p>Fires when the value of brightness has changed.</p>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
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