189 lines
9.1 KiB
HTML
189 lines
9.1 KiB
HTML
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<title>One wire Sensor - Home Assistant</title>
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<meta name="description" content="Instructions how to integrate One wire (1-wire) sensors into Home Assistant.">
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<h1 class="title indent">
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One Wire Sensor
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</h1>
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</header>
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<hr class="divider">
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<p>The <code class="highlighter-rouge">onewire</code> platform supports sensors which are using the One wire (1-wire) bus for communication.</p>
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<p>Supported devices:</p>
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<ul>
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<li><a href="https://datasheets.maximintegrated.com/en/ds/DS18B20.pdf">DS18B20</a></li>
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<li><a href="https://www.maximintegrated.com/en/products/analog/sensors-and-sensor-interface/DS18S20.html">DS18S20</a></li>
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<li><a href="https://datasheets.maximintegrated.com/en/ds/DS1822.pdf">DS1822</a></li>
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<li><a href="https://datasheets.maximintegrated.com/en/ds/DS1825.pdf">DS1825</a></li>
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<li><a href="https://datasheets.maximintegrated.com/en/ds/DS28EA00.pdf">DS28EA00</a> temperature sensors</li>
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</ul>
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<p>The 1-Wire bus can be connected directly to the IO pins of Raspberry Pi or using dedicated interface adapter (e.g <a href="https://datasheets.maximintegrated.com/en/ds/DS9490-DS9490R.pdf">DS9490R</a>). When an interface adapter is used, sensors can be accessed on Linux hosts via <a href="http://owfs.org/">owfs 1-Wire file system</a>. When using an interface adapter and the owfs, the ‘mount_dir’ option must be configured to correspond a directory, where owfs device tree has been mounted. If you are using Raspberry Pi and IO pin connected bus setup, don’t use the ‘mount_dir’ option.</p>
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<p>To enable One wire sensors 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.yaml entry</span>
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<span class="s">sensor</span><span class="pi">:</span>
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<span class="pi">-</span> <span class="s">platform</span><span class="pi">:</span> <span class="s">onewire</span>
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<span class="s">names</span><span class="pi">:</span>
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<span class="s">some_id</span><span class="pi">:</span> <span class="s">your name</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>names</strong> array (<em>Optional</em>): ID and friendly name of your sensors.</li>
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<li><strong>mount_dir</strong> (<em>Optional</em>): Location of device tree if owfs driver used.</li>
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</ul>
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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/_components/sensor.onewire.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/onewire.png' />
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</div>
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<div class='section'>
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Introduced in release: 0.12
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</div>
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<div class='section'>
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<h1 class="title delta">Category DIY</h1>
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<ul class='divided'>
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<li>
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<a href='/components/arduino/'>Arduino</a>
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</li>
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<li>
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<a href='/components/sensor.arduino/'>Arduino Sensor</a>
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</li>
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<li>
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<a href='/components/switch.arduino/'>Arduino Switch</a>
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</li>
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<li>
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<a href='/components/bbb_gpio/'>BeagleBone Black GPIO</a>
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</li>
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<li>
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<a href='/components/sensor.dht/'>DHT Sensor</a>
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</li>
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<li>
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<a href='/components/knx/'>KNX</a>
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</li>
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<li>
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<a href='/components/sensor.knx/'>KNX Sensor</a>
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</li>
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<li>
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<a href='/components/switch.knx/'>KNX Switch</a>
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</li>
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<li>
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<a href='/components/climate.knx/'>KNX Thermostat</a>
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</li>
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<li>
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<a href='/components/sensor.miflora/'>Mi Flora plant sensor</a>
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</li>
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<li>
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One wire Sensor
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</li>
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<li>
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<a href='/components/sensor.serial_pm/'>Particulate matter Sensor</a>
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</li>
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<li>
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<a href='/components/rpi_gpio/'>Raspberry PI GPIO</a>
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</li>
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<li>
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<a href='/components/sensor.skybeacon/'>Skybeacon sensor</a>
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</li>
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<li>
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<a href='/components/zigbee/'>ZigBee</a>
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</li>
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<li>
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<a href='/components/maxcube/'>eQ-3 MAX! Cube</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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Contact us at <a href='mailto:hello@home-assistant.io'>hello@home-assistant.io</a>.<br>
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