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Add Retain suggestion to the config topics (#21540)

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Co-authored-by: Franck Nijhof <frenck@frenck.nl>
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James Chaloupka 2022-02-18 17:09:52 -06:00 committed by GitHub
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@ -338,11 +338,12 @@ A motion detection device which can be represented by a [binary sensor](/integra
- Configuration topic: `homeassistant/binary_sensor/garden/config` - Configuration topic: `homeassistant/binary_sensor/garden/config`
- State topic: `homeassistant/binary_sensor/garden/state` - State topic: `homeassistant/binary_sensor/garden/state`
- Payload: `{"name": "garden", "device_class": "motion", "state_topic": "homeassistant/binary_sensor/garden/state"}` - Payload: `{"name": "garden", "device_class": "motion", "state_topic": "homeassistant/binary_sensor/garden/state"}`
- Retain: The -r switch is added to retain the configuration topic in the broker. Without this, the sensor will not be available after Home Assistant restarts.
To create a new sensor manually. To create a new sensor manually.
```bash ```bash
mosquitto_pub -h 127.0.0.1 -p 1883 -t "homeassistant/binary_sensor/garden/config" -m '{"name": "garden", "device_class": "motion", "state_topic": "homeassistant/binary_sensor/garden/state"}' mosquitto_pub -r -h 127.0.0.1 -p 1883 -t "homeassistant/binary_sensor/garden/config" -m '{"name": "garden", "device_class": "motion", "state_topic": "homeassistant/binary_sensor/garden/state"}'
``` ```
Update the state. Update the state.
@ -377,9 +378,10 @@ Setting up a switch is similar but requires a `command_topic` as mentioned in th
- State topic: `homeassistant/switch/irrigation/state` - State topic: `homeassistant/switch/irrigation/state`
- Command topic: `homeassistant/switch/irrigation/set` - Command topic: `homeassistant/switch/irrigation/set`
- Payload: `{"name": "garden", "command_topic": "homeassistant/switch/irrigation/set", "state_topic": "homeassistant/switch/irrigation/state"}` - Payload: `{"name": "garden", "command_topic": "homeassistant/switch/irrigation/set", "state_topic": "homeassistant/switch/irrigation/state"}`
- Retain: The -r switch is added to retain the configuration topic in the broker. Without this, the sensor will not be available after Home Assistant restarts.
```bash ```bash
mosquitto_pub -h 127.0.0.1 -p 1883 -t "homeassistant/switch/irrigation/config" \ mosquitto_pub -r -h 127.0.0.1 -p 1883 -t "homeassistant/switch/irrigation/config" \
-m '{"name": "garden", "command_topic": "homeassistant/switch/irrigation/set", "state_topic": "homeassistant/switch/irrigation/state"}' -m '{"name": "garden", "command_topic": "homeassistant/switch/irrigation/set", "state_topic": "homeassistant/switch/irrigation/state"}'
``` ```