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<title>MQTT Switch - Home Assistant</title>
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<meta name="author" content="Paulus Schoutsen">
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<meta name="description" content="Instructions how to integrate MQTT switches into Home Assistant.">
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<meta property="og:description" content="Instructions how to integrate MQTT switches into Home Assistant.">
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<meta name="twitter:description" content="Instructions how to integrate MQTT switches into Home Assistant.">
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<header>
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<h1 class="title indent">
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MQTT Switch
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</h1>
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</header>
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<hr class="divider">
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<p>The <code>mqtt</code> switch platform let you control your MQTT enabled light.</p>
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<p>In an ideal scenario, the MQTT device will have a state topic to publish state changes. If these messages are published with RETAIN flag, the MQTT switch will receive an instant state update after subscription and will start with correct state. Otherwise, the initial state of the switch will be false/off.</p>
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<p>When a state topic is not available, the switch will work in optimistic mode. In this mode, the switch will immediately change state after every command. Otherwise, the switch will wait for state confirmation from device (message from <code>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 switch operation.</p>
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<p>To enable this s in your installation, add the following to your <code>configuration.yaml</code> file:</p>
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<div class="highlighter-coderay"><div class="CodeRay">
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<div class="code"><pre><span class="comment"># Example configuration.yml entry</span>
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<span class="key">switch</span>:
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<span class="key">platform</span>: <span class="string"><span class="content">mqtt</span></span>
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<span class="key">name</span>: <span class="string"><span class="delimiter">"</span><span class="content">Bedroom Switch</span><span class="delimiter">"</span></span>
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<span class="key">state_topic</span>: <span class="string"><span class="delimiter">"</span><span class="content">home/bedroom/switch1</span><span class="delimiter">"</span></span>
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<span class="key">command_topic</span>: <span class="string"><span class="delimiter">"</span><span class="content">home/bedroom/switch1/set</span><span class="delimiter">"</span></span>
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<span class="key">qos</span>: <span class="string"><span class="content">0</span></span>
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<span class="key">payload_on</span>: <span class="string"><span class="delimiter">"</span><span class="content">ON</span><span class="delimiter">"</span></span>
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<span class="key">payload_off</span>: <span class="string"><span class="delimiter">"</span><span class="content">OFF</span><span class="delimiter">"</span></span>
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<span class="key">optimistic</span>: <span class="string"><span class="content">false</span></span>
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<span class="key">retain</span>: <span class="string"><span class="content">true</span></span>
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<span class="key">value_template</span>: <span class="string"><span class="content">'{{ value.x }}'</span></span>
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</pre></div>
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</div>
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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 switch. Default is ‘MQTT Switch’.</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 switch state.</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>payload_on</strong> (<em>Optional</em>): The payload that represents enabled state. Default is “ON”.</li>
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<li><strong>payload_off</strong> (<em>Optional</em>): The payload that represents disabled state. Default is “OFF”.</li>
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<li><strong>optimistic</strong> (<em>Optional</em>): Flag that defines if switch works in optimistic mode. Default is true if no state topic defined, else false.</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="/getting-started/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 topics match exact. <code>some-topic/</code> and <code>some-topic</code> are different topics.
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</p>
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</article>
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<aside id="sidebar" class="grid__item one-third lap-one-whole palm-one-whole">
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<div class="grid">
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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/balloob/home-assistant.io/tree/master/source/_components/switch.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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This is a platform for
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<a href='/components/switch/'>the Switches 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/device_tracker.mqtt/'>
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MQTT Device Tracker
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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/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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</ul>
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</div>
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<div class='section'>
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<h1 class="title delta">Category Switch</h1>
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<ul class='divided'>
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<li>
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<a href='/components/switch.wemo/'>Belkin WeMo Switch</a>
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</li>
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<li>
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<a href='/components/switch.command_switch/'>Command line Switch</a>
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</li>
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<li>
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<a href='/components/switch.edimax/'>Edimax Switch</a>
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</li>
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<li>
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MQTT Switch
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</li>
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<li>
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<a href='/components/switch.modbus/'>Modbus Switch</a>
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</li>
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<li>
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<a href='/components/switch.mysensors/'>MySensors Switch</a>
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</li>
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<li>
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<a href='/components/switch.orvibo/'>Orvibo Switch</a>
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</li>
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<li>
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<a href='/components/switch.rest/'>RESTful Switch</a>
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</li>
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<li>
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<a href='/components/switch.rfxtrx/'>RFXtrx Switch</a>
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</li>
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<li>
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<a href='/components/switch.rpi_gpio/'>Raspberry PI GPIO Switch</a>
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</li>
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<li>
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<a href='/components/switch.tellstick/'>TellStick Switch</a>
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</li>
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<li>
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<a href='/components/switch.tellduslive/'>Telldus Live Switch</a>
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</li>
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<li>
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<a href='/components/switch.transmission/'>Transmission Switch</a>
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</li>
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<li>
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<a href='/components/switch.vera/'>Vera Switch</a>
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</li>
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<li>
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<a href='/components/switch.wink/'>Wink Switch</a>
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</li>
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<li>
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<a href='/components/switch.zwave/'>Z-Wave Switch</a>
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</li>
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<li>
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<a href='/components/switch.zigbee/'>ZigBee Switch</a>
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</li>
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<li>
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<a href='/components/switch.arest/'>aREST Switch</a>
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</li>
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<li>
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<a href='/components/switch.mystrom/'>myStrom Switch</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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</div>
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