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<title>Automation Templating - Home Assistant</title>
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<h1 class="title indent">
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Automation Templating
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</h1>
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</header>
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<hr class="divider">
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<p>In Home Assistant 0.19 we introduced a new powerful feature: variables in scripts and automations. This makes it possible to adjust your condition and action based on the information of the trigger.</p>
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<p>The trigger data made is available during template rendering as the <code class="highlighter-rouge">trigger</code> variable.</p>
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<div class="language-yaml highlighter-rouge"><pre class="highlight"><code><span class="c1"># Example configuration.yaml entries</span>
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<span class="s">automation</span><span class="pi">:</span>
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<span class="s">trigger</span><span class="pi">:</span>
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<span class="s">platform</span><span class="pi">:</span> <span class="s">state</span>
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<span class="s">entity_id</span><span class="pi">:</span> <span class="s">device_tracker.paulus</span>
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<span class="s">action</span><span class="pi">:</span>
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<span class="s">service</span><span class="pi">:</span> <span class="s">notify.notify</span>
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<span class="s">data_template</span><span class="pi">:</span>
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<span class="s">message</span><span class="pi">:</span> <span class="pi">></span>
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<span class="no">Paulus just changed from {{ trigger.from_state.state }}</span>
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<span class="no">to {{ trigger.to_state.state }}</span>
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<span class="s">automation 2</span><span class="pi">:</span>
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<span class="s">trigger</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">topic</span><span class="pi">:</span> <span class="s">/notify/+</span>
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<span class="s">action</span><span class="pi">:</span>
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<span class="s">service_template</span><span class="pi">:</span> <span class="pi">></span>
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<span class="no">notify.{{ trigger.topic.split('/')[-1] }}</span>
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<span class="s">data_template</span><span class="pi">:</span>
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<span class="s">message</span><span class="pi">:</span> <span class="pi">{{</span> <span class="nv">trigger.payload</span> <span class="pi">}}</span>
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</code></pre>
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</div>
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<h2><a class="title-link" name="available-trigger-data" href="#available-trigger-data"></a> Available Trigger Data</h2>
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<p>The following tables show the available trigger data per platform.</p>
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<h3><a class="title-link" name="event" href="#event"></a> event</h3>
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<table>
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<thead>
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<tr>
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<th>Template variable</th>
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<th>Data</th>
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</tr>
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</thead>
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<tbody>
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<tr>
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<td><code class="highlighter-rouge">trigger.platform</code></td>
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<td>Hardcoded: <code class="highlighter-rouge">event</code>.</td>
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</tr>
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<tr>
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<td><code class="highlighter-rouge">trigger.event</code></td>
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<td>Event object that matched.</td>
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</tr>
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</tbody>
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</table>
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<h3><a class="title-link" name="mqtt" href="#mqtt"></a> mqtt</h3>
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<table>
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<thead>
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<tr>
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<th>Template variable</th>
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<th>Data</th>
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</tr>
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</thead>
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<tbody>
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<tr>
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<td><code class="highlighter-rouge">trigger.platform</code></td>
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<td>Hardcoded: <code class="highlighter-rouge">mqtt</code>.</td>
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</tr>
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<tr>
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<td><code class="highlighter-rouge">trigger.topic</code></td>
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<td>Topic that received payload.</td>
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</tr>
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<tr>
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<td><code class="highlighter-rouge">trigger.payload</code></td>
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<td>Payload.</td>
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</tr>
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<tr>
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<td><code class="highlighter-rouge">trigger.qos</code></td>
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<td>QOS of payload.</td>
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</tr>
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</tbody>
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</table>
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<h3><a class="title-link" name="numeric_state" href="#numeric_state"></a> numeric_state</h3>
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<table>
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<thead>
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<tr>
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<th>Template variable</th>
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<th>Data</th>
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</tr>
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</thead>
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<tbody>
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<tr>
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<td><code class="highlighter-rouge">trigger.platform</code></td>
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<td>Hardcoded: <code class="highlighter-rouge">numeric_state</code></td>
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</tr>
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<tr>
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<td><code class="highlighter-rouge">trigger.entity_id</code></td>
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<td>Entity ID that we observe.</td>
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</tr>
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<tr>
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<td><code class="highlighter-rouge">trigger.below</code></td>
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<td>The below threshold, if any.</td>
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</tr>
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<tr>
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<td><code class="highlighter-rouge">trigger.above</code></td>
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<td>The above threshold, if any.</td>
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</tr>
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<tr>
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<td><code class="highlighter-rouge">trigger.from_state</code></td>
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<td>The previous <a href="/topics/state_object/">state object</a> of the entity.</td>
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</tr>
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<tr>
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<td><code class="highlighter-rouge">trigger.to_state</code></td>
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<td>The new <a href="/topics/state_object/">state object</a> that triggered trigger.</td>
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</tr>
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</tbody>
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</table>
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<h3><a class="title-link" name="state" href="#state"></a> state</h3>
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<table>
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<thead>
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<tr>
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<th>Template variable</th>
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<th>Data</th>
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</tr>
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</thead>
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<tbody>
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<tr>
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<td><code class="highlighter-rouge">trigger.platform</code></td>
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<td>Hardcoded: <code class="highlighter-rouge">state</code></td>
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</tr>
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<tr>
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<td><code class="highlighter-rouge">trigger.entity_id</code></td>
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<td>Entity ID that we observe.</td>
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</tr>
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<tr>
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<td><code class="highlighter-rouge">trigger.from_state</code></td>
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<td>The previous <a href="/topics/state_object/">state object</a> of the entity.</td>
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</tr>
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<tr>
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<td><code class="highlighter-rouge">trigger.to_state</code></td>
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<td>The new <a href="/topics/state_object/">state object</a> that triggered trigger.</td>
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</tr>
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<tr>
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<td><code class="highlighter-rouge">trigger.for</code></td>
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<td>Timedelta object how long state has been to state, if any.</td>
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</tr>
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</tbody>
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</table>
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<h3><a class="title-link" name="sun" href="#sun"></a> sun</h3>
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<table>
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<thead>
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<tr>
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<th>Template variable</th>
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<th>Data</th>
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</tr>
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</thead>
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<tbody>
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<tr>
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<td><code class="highlighter-rouge">trigger.platform</code></td>
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<td>Hardcoded: <code class="highlighter-rouge">sun</code></td>
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</tr>
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<tr>
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<td><code class="highlighter-rouge">trigger.event</code></td>
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<td>The event that just happened: <code class="highlighter-rouge">sunset</code> or <code class="highlighter-rouge">sunrise</code>.</td>
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</tr>
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<tr>
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<td><code class="highlighter-rouge">trigger.offset</code></td>
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<td>Timedelta object with offset to the event, if any.</td>
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</tr>
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</tbody>
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</table>
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<h3><a class="title-link" name="template" href="#template"></a> template</h3>
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<table>
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<thead>
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<tr>
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<th>Template variable</th>
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<th>Data</th>
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</tr>
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</thead>
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<tbody>
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<tr>
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<td><code class="highlighter-rouge">trigger.platform</code></td>
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<td>Hardcoded: <code class="highlighter-rouge">template</code></td>
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</tr>
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<tr>
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<td><code class="highlighter-rouge">trigger.entity_id</code></td>
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<td>Entity ID that caused change.</td>
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</tr>
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<tr>
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<td><code class="highlighter-rouge">trigger.from_state</code></td>
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<td>Previous <a href="/topics/state_object/">state object</a> of entity that caused change.</td>
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</tr>
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<tr>
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<td><code class="highlighter-rouge">trigger.to_state</code></td>
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<td>New <a href="/topics/state_object/">state object</a> of entity that caused template to change.</td>
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</tr>
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</tbody>
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</table>
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<h3><a class="title-link" name="time" href="#time"></a> time</h3>
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<table>
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<thead>
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<tr>
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<th>Template variable</th>
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<th>Data</th>
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</tr>
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</thead>
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<tbody>
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<tr>
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<td><code class="highlighter-rouge">trigger.platform</code></td>
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<td>Hardcoded: <code class="highlighter-rouge">time</code></td>
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</tr>
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<tr>
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<td><code class="highlighter-rouge">trigger.now</code></td>
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<td>DateTime object that triggered the time trigger.</td>
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</tr>
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</tbody>
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</table>
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<h3><a class="title-link" name="zone" href="#zone"></a> zone</h3>
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<table>
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<thead>
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<tr>
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<th>Template variable</th>
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<th>Data</th>
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</tr>
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</thead>
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<tbody>
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<tr>
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<td><code class="highlighter-rouge">trigger.platform</code></td>
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<td>Hardcoded: <code class="highlighter-rouge">zone</code></td>
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</tr>
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<tr>
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<td><code class="highlighter-rouge">trigger.entity_id</code></td>
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<td>Entity ID that we are observing.</td>
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</tr>
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<tr>
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<td><code class="highlighter-rouge">trigger.from_state</code></td>
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<td>Previous <a href="/topics/state_object/">state object</a> of the entity.</td>
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</tr>
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<tr>
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<td><code class="highlighter-rouge">trigger.to_state</code></td>
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<td>New <a href="/topics/state_object/">state object</a> of the entity.</td>
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</tr>
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<tr>
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<td><code class="highlighter-rouge">trigger.zone</code></td>
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<td>State object of zone</td>
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</tr>
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<tr>
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<td><code class="highlighter-rouge">trigger.event</code></td>
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<td>Event that trigger observed: <code class="highlighter-rouge">enter</code> or <code class="highlighter-rouge">leave</code>.</td>
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</tr>
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</tbody>
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</table>
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</article>
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</div>
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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/home-assistant/home-assistant.github.io/tree/current/source/getting-started/automation-templating.markdown'>Edit this page on GitHub</a></div>
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<div class='section'>
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<h1 class="title delta">Getting Started Guide</h1>
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<ul class='divided sidebar-menu'>
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<li>
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<a href='/getting-started/'>Installation </a>
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<ul>
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<li><a href='/getting-started/installation-raspberry-pi/'>Raspberry Pi </a></li>
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<li><a href='/getting-started/installation-raspberry-pi-all-in-one/'>Raspberry Pi All-In-One Installer </a></li>
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<li><a href='/getting-started/installation-docker/'>Docker </a></li>
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<li><a href='/getting-started/installation-vagrant/'>Vagrant </a></li>
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<li><a href='/getting-started/installation-synology/'>Synology NAS </a></li>
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<li><a href='/getting-started/installation-virtualenv/'>Virtualenv Linux </a></li>
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<li><a href='/getting-started/updating/'>Updating </a></li>
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<li><a href='/getting-started/troubleshooting/'>Troubleshooting </a></li>
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</ul>
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</li>
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<li>
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<a href='/getting-started/configuration/'>Configuration </a>
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<ul>
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<li><a href='/getting-started/yaml/'>YAML </a></li>
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<li><a href='/getting-started/basic/'>Basic information </a></li>
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<li><a href='/getting-started/devices/'>Setting up devices </a></li>
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<li><a href='/getting-started/customizing-devices/'>Customizing devices and services </a></li>
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<li><a href='/getting-started/presence-detection/'>Presence Detection </a></li>
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<li><a href='/getting-started/troubleshooting-configuration/'>Troubleshooting </a></li>
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</ul>
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</li>
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<li>
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<a href='/getting-started/automation/'>Automation </a>
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<ul>
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<li><a href='/getting-started/automation-create-first/'>Tutorial </a></li>
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<li><a href='/getting-started/automation-trigger/'>Triggers </a></li>
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<li><a href='/getting-started/automation-condition/'>Conditions </a></li>
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<li><a href='/getting-started/automation-action/'>Actions </a></li>
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<li><a class='active' href='/getting-started/automation-templating/'>Templates </a></li>
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</ul>
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</li>
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<li>
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<a href='/getting-started/scripts/'>Scripts </a>
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<ul>
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<li><a href='/getting-started/scripts-service-calls/'>Service Calls </a></li>
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<li><a href='/getting-started/scripts-conditions/'>Conditions </a></li>
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</ul>
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</li>
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<li>
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<a href='/getting-started/z-wave/'>Z-Wave </a>
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<ul>
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<li><a href='/getting-started/z-wave-controllers/'>USB Controllers </a></li>
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<li><a href='/getting-started/z-wave-settings/'>Modifying Settings </a></li>
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<li><a href='/getting-started/z-wave-device-specific/'>Device Specific </a></li>
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</ul>
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</li>
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<li>
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<a href='/getting-started/autostart/'>Autostart </a>
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<ul>
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<li><a href='/getting-started/autostart-systemd/'>Linux - systemd </a></li>
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<li><a href='/getting-started/autostart-upstart/'>Linux - Upstart </a></li>
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<li><a href='/getting-started/autostart-macos/'>OS X </a></li>
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<li><a href='/getting-started/autostart-synology/'>Synology NAS </a></li>
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</ul>
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</li>
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<li><a href='/topics/'>Advanced Topics </a></li>
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<li><a href='/getting-started/android/'>Add to Android Homescreen </a></li>
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<li><a href='/getting-started/browsers/'>Browser Compatibility List </a></li>
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</ul>
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</div>
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</section>
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