Using Google Assistant

In webOS IoT, you can use Google Assistant via com.webos.service.ai.voice API. This API starts, monitors, and stops a service to control Google Assistant.

This page shows you how to control the service using com.webos.service.ai.voice API.

Prerequisites

Make sure you have completed the steps in Google Assistant Setup on your target device.
Connect a microphone with USB interface.
(Optional) Connect a speaker to hear the response.

Usage Example

To start a new service, type the following command on your target device shell:

root@raspberrypi4:/sysroot/home/root# luna-send -n 1 -f luna://com.webos.service.ai.voice/start '{"mode": "continuous", "keywordDetect": true}'
{
    "returnValue": true
}

To show the responses of Google Assistant, call getResponse method. This method runs continuously unless you quit it. (Press Ctrl + C.)

root@raspberrypi4:/sysroot/home/root# luna-send -i -f luna://com.webos.service.ai.voice/getResponse '{"subscribe": true}'
{
    "subscribed": true,
    "returnValue": true
}

Now you are ready to use Google Assistant. First, say Snowboy to activate Google Assistant, then ask what you want.

# Say "Snowboy"
{
    "provider": "googleassistant",
    "response": {
        "keywordDetected": 1
    }
}

# Say "What's the weather?"
{
    "provider": "googleassistant",
    "response": {
        "partial": "what"
    }
}
{
    "provider": "googleassistant",
    "response": {
        "partial": "what's"
    }
}
{
    "provider": "googleassistant",
    "response": {
        "partial": "what's the"
    }
}
{
    "provider": "googleassistant",
    "response": {
        "partial": "what's the weather"
    }
}

# Then Google Assistant returns the response to your question.
# If you have a speaker, you can hear the response.
{
    "provider":"googleassistant",
    "response":{
        "displayText":"Looks kind of cloudy Right now in Seoul it's 51 and mostly cloudy. Today, it'll be partly cloudy, with a forecasted high of 51 and a low of 32.
        ---
        ( More on weather.com )"
    }
}

# Press Ctrl+C to quit the getResponse method

To stop the service, call stop method:

root@raspberrypi4:/sysroot/home/root# luna-send -n 1 -f luna://com.webos.service.ai.voice/stop '{}'
{
    "returnValue": true
}