34 lines
1.8 KiB
Markdown
34 lines
1.8 KiB
Markdown
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---
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layout: documentation
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---
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{% include base.html %}
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# Items
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Eclipse SmartHome has a strict separation between the physical world (the "things", see below) and the application, which is built around the notion of "items" (also called the virtual layer).
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Items represent functionality that is used by the application (mainly user interfaces or automation logic). Items have a state and are used through events.
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The following item types are currently available (alphabetical order):
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<table>
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<tr><td><b>Itemname</b></td><td><b>Description</b></td><td><b>Command Types</b></td></tr>
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<tr><td>Color</td><td>Color information (RGB)</td><td>OnOff, IncreaseDecrease, Percent, HSB</td></tr>
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<tr><td>Contact</td><td>Item storing status of e.g. door/window contacts</td><td>OpenClose</td></tr>
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<tr><td>DateTime</td><td>Stores date and time</td><td></td></tr>
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<tr><td>Dimmer</td><td>Item carrying a percentage value for dimmers</td><td>OnOff, IncreaseDecrease, Percent</td></tr>
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<tr><td>Group</td><td>Item to nest other items / collect them in groups</td><td>-</td></tr>
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<tr><td>Number</td><td>Stores values in number format</td><td>Decimal</td></tr>
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<tr><td>Player</td><td>Allows to control players (e.g. audio players)</td><td>PlayPause, NextPrevious, RewindFastforward</td></tr>
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<tr><td>Rollershutter</td><td>Typically used for blinds</td><td>UpDown, StopMove, Percent</td></tr>
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<tr><td>String</td><td>Stores texts</td><td>String</td></tr>
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<tr><td>Switch</td><td>Typically used for lights (on/off)</td><td>OnOff</td></tr>
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</table>
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Group Items can derive their own state depending on their member items.
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- AVG displays the average of the item states in the group.
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- OR displays an OR of the group, typically used to display whether any item in a group has been set.
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- other aggregations: AND, SUM, MIN, MAX, NAND, NOR
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