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Update snips.markdown (#2975)

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Michael Fester 2017-07-15 17:09:23 +02:00 committed by Fabian Affolter
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@ -69,15 +69,36 @@ followed by a command, e.g.
We should see the transcribed phrase in the logs, as well as a properly parsed intent. The intent is published on MQTT, on the `hermes/nlu/intentParsed` topic. The Snips Home Assistant component subscribes to this topic, and handles the intent according to the rules defined in `configuration.yaml`, as explained below.
#### Optional: specifying an external MQTT broker
By default, Snips runs its own MQTT broker. But we can also tell Snips to use an external broker by specifying this when launching Snips. In this case, instead of running the `snips` command above (which assumes we are using the internal MQTT broker), we use the full launch command with explicitly specified parameters (replace `MQTT_BROKER_IP` and `MQTT_BROKER_PORT` with appropriate values):
```sh
$ docker run -t --rm --name snips --log-driver none -v /home/pi/.asoundrc:/root/.asoundrc -v /opt/snips/config:/opt/snips/config --privileged -v /dev/snd:/dev/snd snipsdocker/platform --mqtt MQTT_BROKER_IP:MQTT_BROKER_PORT
```
For more details on launch options, check the documentation on [Snips Platform Commands](https://github.com/snipsco/snips-platform-documentation/wiki/6.--Learn-more:-Platform-Commands#using-a-custom-mqtt-bus).
## Home Assistant configuration
By default, the Snips MQTT broker runs on port 9898. We should tell Home Assistant to use this as a broker, rather than its own, by adding the following section to `configuration.yaml`:
### Specifying the MQTT broker
Messages between Snips and Home Assistant are passed via MQTT. We must tell Home Assistant which MQTT broker to use by adding the following entry to `configuration.yaml`:
```yaml
mqtt:
broker: MQTT_BROKER_IP
port: MQTT_BROKER_PORT
```
As explained above, Snips by default runs an MQTT broker on port 9898. So if we wish to use this broker, the entry will look as follows:
```yaml
mqtt:
broker: 127.0.0.1
port: 9898
```
### Triggering actions
In Home Assistant, we trigger actions based on intents produced by Snips. This is done in `configuration.yaml`. For instance, the following block handles `ActivateLightColors` intents (included in the Snips IoT intent bundle) to change light colors: