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21 lines
1.1 KiB
Markdown
21 lines
1.1 KiB
Markdown
# MQTT Homie Binding
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NOTE: This binding is provided by the [MQTT binding](https://www.openhab.org/addons/bindings/mqtt/), and therefore no explicit installation is necessary beyond installing the MQTT binding.
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Devices that follow the [Homie convention](https://homieiot.github.io/) 3.x and better
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are auto-discovered and represented by this binding and the Homie Thing.
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Find the next table to understand the topology mapping from Homie to the Framework:
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| Homie | Framework | Example MQTT topic |
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|----------|---------------|------------------------------------|
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| Device | Thing | homie/super-car |
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| Node | Channel Group | homie/super-car/engine |
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| Property | Channel | homie/super-car/engine/temperature |
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System trigger channels are supported using non-retained properties, with *enum* data type and with the following formats:
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* Format: "PRESSED,RELEASED" -> system.rawbutton
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* Format: "SHORT\_PRESSED,DOUBLE\_PRESSED,LONG\_PRESSED" -> system.button
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* Format: "DIR1\_PRESSED,DIR1\_RELEASED,DIR2\_PRESSED,DIR2\_RELEASED" -> system.rawrocker
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