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<h1 class="title indent">
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MQTT Fan
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</h1>
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<hr class="divider">
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<p>The <code class="highlighter-rouge">mqtt</code> fan platform let you control your MQTT enabled fans.</p>
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<p>In an ideal scenario, the MQTT device will have a <code class="highlighter-rouge">state_topic</code> to publish state changes. If these messages are published with <code class="highlighter-rouge">RETAIN</code> flag, the MQTT fan will receive an instant state update after subscription and will start with correct state. Otherwise, the initial state of the fan will be <code class="highlighter-rouge">false</code>.</p>
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<p>When a <code class="highlighter-rouge">state_topic</code> is not available, the fan will work in optimistic mode. In this mode, the fan will immediately change state after every command. Otherwise, the fan will wait for state confirmation from device (message from <code class="highlighter-rouge">state_topic</code>).</p>
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<p>Optimistic mode can be forced, even if state topic is available. Try to enable it, if experiencing incorrect fan operation.</p>
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<p>To enable MQTT fans in your installation, add the following to your <code class="highlighter-rouge">configuration.yaml</code> file:</p>
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<div class="language-yaml highlighter-rouge"><pre class="highlight"><code><span class="c1"># Example configuration.yml entry</span>
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<span class="s">fan</span><span class="pi">:</span>
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<span class="s">platform</span><span class="pi">:</span> <span class="s">mqtt</span>
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<span class="s">name</span><span class="pi">:</span> <span class="s">Living room</span>
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<span class="s">state_topic</span><span class="pi">:</span> <span class="s2">"</span><span class="s">home/living-room/fan"</span>
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<span class="s">command_topic</span><span class="pi">:</span> <span class="s2">"</span><span class="s">home/living-room/fan/set"</span>
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<span class="s">payload_on</span><span class="pi">:</span> <span class="s2">"</span><span class="s">ON"</span>
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<span class="s">payload_off</span><span class="pi">:</span> <span class="s2">"</span><span class="s">OFF"</span>
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<span class="s">optimistic</span><span class="pi">:</span> <span class="s">false</span>
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<span class="s">qos</span><span class="pi">:</span> <span class="s">0</span>
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<span class="s">retain</span><span class="pi">:</span> <span class="s">true</span>
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<span class="s">value_template</span><span class="pi">:</span> <span class="s1">'</span><span class="s">{{</span><span class="nv"> </span><span class="s">value.x</span><span class="nv"> </span><span class="s">}}'</span>
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</code></pre>
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</div>
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<p>Configuration variables:</p>
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<ul>
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<li><strong>name</strong> (<em>Optional</em>): The name of the lock. Default is ‘MQTT Lock’.</li>
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<li><strong>state_topic</strong> (<em>Optional</em>): The MQTT topic subscribed to receive state updates.</li>
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<li><strong>command_topic</strong> (<em>Required</em>): The MQTT topic to publish commands to change the lock state.</li>
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<li><strong>payload_on</strong> (<em>Optional</em>): The payload that represents the running state. Default is “ON”.</li>
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<li><strong>payload_off</strong> (<em>Optional</em>): The payload that represents the stop state. Default is “OFF”.</li>
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<li><strong>optimistic</strong> (<em>Optional</em>): Flag that defines if lock works in optimistic mode. Default is <code class="highlighter-rouge">true</code> if no state topic defined, else <code class="highlighter-rouge">false</code>.</li>
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<li><strong>qos</strong> (<em>Optional</em>): The maximum QoS level of the state topic. Default is 0 and will also be used to publishing messages.</li>
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<li><strong>retain</strong> (<em>Optional</em>): If the published message should have the retain flag on or not.</li>
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<li><strong>value_template</strong> (<em>Optional</em>): Defines a <a href="/topics/templating/">template</a> to extract a value from the payload.</li>
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</ul>
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<p class="note warning">
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Make sure that your topic match exact. <code class="highlighter-rouge">some-topic/</code> and <code class="highlighter-rouge">some-topic</code> are different topics.
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</p>
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<section class="aside-module grid__item one-whole lap-one-half">
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<div class='edit-github'><a href='https://github.com/home-assistant/home-assistant.github.io/tree/current/source/_components/fan.mqtt.markdown'>Edit this page on GitHub</a></div>
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<div class='brand-logo-container section'>
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<img src='/images/supported_brands/mqtt.png' />
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</div>
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<div class='section'>
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IoT class<sup><a href='/blog/2016/02/12/classifying-the-internet-of-things/#classifiers'><i class="icon-info-sign"></i></a></sup>: depends
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</div>
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<div class='section'>
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Introduced in release: 0.27
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</div>
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<div class='section'>
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This is a platform for
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<a href='/components/fan/'>the Fan component</a>.
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</div>
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<div class='section'>
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<h1 class='title delta'>Related components</h1>
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<ul class='divided'>
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<li><a href='/components/mqtt/'>
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MQTT
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</a></li>
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<li><a href='/components/alarm_control_panel.mqtt/'>
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MQTT Alarm Control Panel
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</a></li>
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<li><a href='/components/binary_sensor.mqtt/'>
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MQTT Binary Sensor
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</a></li>
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<li><a href='/components/cover.mqtt/'>
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MQTT Cover
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</a></li>
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<li><a href='/components/device_tracker.mqtt/'>
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MQTT Device Tracker
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</a></li>
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<li><a href='/components/garage_door.mqtt/'>
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MQTT Garage door
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</a></li>
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<li><a href='/components/light.mqtt/'>
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MQTT Light
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</a></li>
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<li><a href='/components/lock.mqtt/'>
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MQTT Lock
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</a></li>
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<li><a href='/components/notify.mqtt/'>
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MQTT Notifications
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</a></li>
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<li><a href='/components/rollershutter.mqtt/'>
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MQTT Rollershutter
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</a></li>
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<li><a href='/components/sensor.mqtt/'>
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MQTT Sensor
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</a></li>
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<li><a href='/components/switch.mqtt/'>
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MQTT Switch
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</a></li>
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</ul>
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</div>
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<div class='section'>
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<h1 class="title delta">Category Fan</h1>
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<ul class='divided'>
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<li>
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<a href='/components/fan.isy994/'>ISY994 Fan</a>
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</li>
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<li>
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MQTT Fan
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</li>
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<li>
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<a href='/components/fan.nest/'>Nest Fan</a>
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</li>
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</ul>
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</div>
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</section>
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