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Site updated at 2017-01-18 07:44:14 UTC

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<p>The <code class="highlighter-rouge">eq3btsmart</code> climate platform allows you to integrate EQ3 Bluetooth Smart Thermostats.</p>
<p>The only functionality is to set the temperature, there doesn’t seem to be any way to query the temperature sensor or battery level (<a href="https://forum.fhem.de/index.php/topic,39308.15.html">read more</a>).</p>
<p>The current functionality allows setting the temperature as well as controlling the supported modes with help of <a href="https://github.com/rytilahti/python-eq3bt">python-eq3bt</a> library.
As the device doesn’t contain a temperature sensor (<a href="https://forum.fhem.de/index.php/topic,39308.15.html">read more</a>),
we report target temperature also as current one.</p>
<p>Setup is a bit more cumbersome than for most other thermostats. It has to be paired first:</p>
<h3>Testing the connectivity</h3>
<p>Before configuring Home Assistant you should check that connectivity with the thermostat is working, which can can be done with the eq3cli tool:</p>
<div class="language-bash highlighter-rouge"><pre class="highlight"><code>bluetoothctl
scan on
&lt;Wait <span class="k">for </span>the thermostat to be found, which looks like this: <span class="o">[</span>NEW] Device 00:11:22:33:44:55 CC-RT-BLE&gt;
scan off
&lt;Set the thermostat to pairing mode.&gt;
pair &lt;MAC&gt;
trust &lt;MAC&gt;
disconnect &lt;MAC&gt;
<span class="nb">exit</span>
<div class="language-bash highlighter-rouge"><pre class="highlight"><code>eq3cli --mac 00:11:22:33:44:55
<span class="o">[</span>00:1A:22:XX:XX:XX] Target 17.0 <span class="o">(</span>mode: auto dst, away: no<span class="o">)</span>
Locked: False
Batter low: False
Window open: False
Boost: False
Current target temp: 21.0
Current mode: auto dst
Valve: 0
</code></pre>
</div>
<p>Then check with gatttool if the connection works as expected:</p>
<div class="language-bash highlighter-rouge"><pre class="highlight"><code>gatttool -b 00:11:22:33:44:55 -I
<span class="gp">[00:11:22:33:44:55][LE]&gt; </span>connect
Attempting to connect to 00:11:22:33:44:55
Connection successful
<span class="gp">[00:11:22:33:44:55][LE]&gt; </span>char-write-req 0x0411 03
Characteristic value was written successfully
Notification handle <span class="o">=</span> 0x0421 value: 02 01 09 14 04 2d
<span class="gp">[00:11:22:33:44:55][LE]&gt; </span>disconnect
<span class="gp">[00:11:22:33:44:55][LE]&gt; </span><span class="nb">exit</span>
</code></pre>
</div>
<p>Important: For gatttool or homeassistant to work, the thermostat needs to be disconnected from bluetoothd, so I found it best to modify the hass-daemon startscript by adding:</p>
<div class="language-bash highlighter-rouge"><pre class="highlight"><code>/usr/bin/bt-device -d CC-RT-BLE
</code></pre>
</div>
<p>to the start function of /etc/init.d/hass-daemon.</p>
<h3>Configuration</h3>
<div class="language-yaml highlighter-rouge"><pre class="highlight"><code><span class="c1"># Example configuration.yaml entry</span>
<span class="s">climate</span><span class="pi">:</span>