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Site updated at 2016-06-20 04:19:00 UTC

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blog/categories/mqtt/atom.xml
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@ -4,7 +4,7 @@
<title><![CDATA[Category: MQTT | Home Assistant]]></title>
<link href="https://home-assistant.io/blog/categories/mqtt/atom.xml" rel="self"/>
<link href="https://home-assistant.io/"/>
<updated>2016-06-19T22:07:22+00:00</updated>
<updated>2016-06-20T04:18:24+00:00</updated>
<id>https://home-assistant.io/</id>
<author>
<name><![CDATA[Paulus Schoutsen]]></name>
@ -281,9 +281,14 @@ Home Assistant will keep track of historical values and allow you to integrate i
<p><em>Besides this, you will need the usual hardware prototype equipment: a breadboard, some wires, soldering iron + wire, Serial USB cable.</em></p>
<p class="note">
Adafruit has stopped selling the HDC1008. One possible replacement is the <a href="https://www.adafruit.com/product/2652">BME280</a>. Adjusted sketch to work with the BME280 can be found <a href="https://gist.github.com/mtl010957/9ee85fb404f65e15c440b08c659c0419">here</a>.
</p>
<h3><a class='title-link' name='alternatives' href='#alternatives'></a> Alternatives </h3>
<p>Since this article has been published the HDC1008 has been discontinued. Updated sketches are available for the following alternatives:</p>
<ul>
<li><a href="https://www.adafruit.com/product/385">DHT22 sensor</a> and <a href="https://gist.github.com/balloob/1176b6d87c2816bd07919ce6e29a19e9">updated sketch</a>.</li>
<li><a href="https://www.adafruit.com/product/2652">BME280 sensor</a> and <a href="https://gist.github.com/mtl010957/9ee85fb404f65e15c440b08c659c0419">updated sketch</a>.</li>
</ul>
<h3><a class='title-link' name='connections' href='#connections'></a> Connections </h3>
@ -455,6 +460,8 @@ Adafruit has stopped selling the HDC1008. One possible replacement is the <a hre
<a href="#n107" name="n107">107</a>
<a href="#n108" name="n108">108</a>
<a href="#n109" name="n109">109</a>
<strong><a href="#n110" name="n110">110</a></strong>
<a href="#n111" name="n111">111</a>
</pre></td>
<td class="code"><pre><span class="preprocessor">#include</span> <span class="include">&lt;ESP8266WiFi.h&gt;</span>
<span class="preprocessor">#include</span> <span class="include">&lt;Wire.h&gt;</span>
@ -487,7 +494,8 @@ Adafruit_HDC1000 hdc = Adafruit_HDC1000();
<span class="keyword">if</span> (!hdc.begin()) {
Serial.println(<span class="string"><span class="delimiter">&quot;</span><span class="content">Couldn't find sensor!</span><span class="delimiter">&quot;</span></span>);
<span class="keyword">while</span> (<span class="integer">1</span>);
}}
}
}
<span class="directive">void</span> setup_wifi() {
delay(<span class="integer">10</span>);
@ -529,7 +537,8 @@ Adafruit_HDC1000 hdc = Adafruit_HDC1000();
}
<span class="predefined-type">bool</span> checkBound(<span class="predefined-type">float</span> newValue, <span class="predefined-type">float</span> prevValue, <span class="predefined-type">float</span> maxDiff) {
<span class="keyword">return</span> newValue &lt; prevValue - maxDiff || newValue &gt; prevValue + maxDiff;
<span class="keyword">return</span> !isnan(newValue) &amp;&amp;
(newValue &lt; prevValue - maxDiff || newValue &gt; prevValue + maxDiff);
}
<span class="predefined-type">long</span> lastMsg = <span class="integer">0</span>;