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* renamed Digital to Digit * added param migration * Update .github/label-commenter-config.yaml * renamed AnalogDigitTransition* to AnalogToDigitTransition* --------- Co-authored-by: CaCO3 <caco@ruinelli.ch>
21 lines
1.3 KiB
Markdown
21 lines
1.3 KiB
Markdown
# Parameter `MainTopic`
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Default Value: `watermeter`
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MQTT main topic, under which the counters are published.
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The single value will be published with the following key: `MAINTOPIC/NUMBER/RESULT_TOPIC`
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With:
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- `NUMBER`: The name of the value (a meter might have more than one value).
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The names get defined in the analog and digit ROI configuration (defaults to `main`).
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- `RESULT_TOPIC`: Automatically filled with the right name, eg. `value`, `rate`, `timestamp`, `error`, ....
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The general connection status can be found in `MAINTOPIC/CONNECTION`.
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See [MQTT Result Topics](../MQTT-API#result) for a full list of topics.
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!!! Note
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The main topic is allowed to contain `/` which can be used to split it into multiple levels, eg. `/basement/meters/watermeter/1/` if you have multiple water meters in your basement.
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The nodeId for the Home Assistant MQTT Service Discovery must follow the schema `<discovery_prefix>/<component>/[<node_id>/]<object_id>/config`. The node_id is not configurable but derived from the `MainTopic` by stripping any but the last topic level. A `MainTopic` with the value `home/basement/watermeter` is transformed into the node_id `watermeter`, resulting in the discovery topic `homeassistant/sensor/watermeter/value/config` for the current value.
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