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Google Assistant SDK for devices - Python

This package contains a collection of samples and tools to help you get started with the Google Assistant SDK using Python.

Installing

  • You can install using pip:

    pip install --upgrade google-assistant-sdk[samples]

Usage

google-oauthlib-tool

This tool creates test credentials to authorize devices to call the Google Assistant Service when prototyping.

googlesamples-assistant-audiotest

This tool verifies device setup for audio recording and playback.

  • Install the sample's dependencies:

    sudo apt-get install portaudio19-dev libffi-dev libssl-dev
pip install --upgrade google-assistant-sdk[samples]

  • Record 10 seconds of audio samples and play them back:

    googlesamples-assistant-audiotest --record-time 10

  • Adjust the sound device block size and flush size for a soundcard with limited throughput:

    googlesamples-assistant-audiotest --record-time 10 --audio-block-size=3200 --audio-flush-size=6400

The same --audio-block-size and --audio-flush-size options can be used on the gRPC samples included in the SDK.

googlesamples-assistant-devicetool

This tool allows you to register Google Assistant device models and instances and associate them with Device Actions traits.

  • Install the sample's dependencies:

    sudo apt-get install portaudio19-dev libffi-dev libssl-dev
pip install --upgrade google-assistant-sdk[samples]

  • Show the CLI tool usage:

    googlesamples-assistant-devicetool --help

  • Register a new device model and new device instance (after replacing the 'placeholder values' between quotes):

    googlesamples-assistant-devicetool --project-id PROJECT_ID register --model 'my-model-identifier' \
                                                                    --type LIGHT --trait action.devices.traits.OnOff \
                                                                    --manufacturer 'Assistant SDK developer' \
                                                                    --product-name 'Assistant SDK light' \
                                                                    --description 'Assistant SDK light device' \
                                                                    --device 'my-device-identifier' \
                                                                    --nickname 'My Assistant Light'

  • Register or overwrite the device model with the supported traits (after replacing the 'placeholder values' between quotes):

    googlesamples-assistant-devicetool --project-id PROJECT_ID register-model --model 'my-model-identifier' \
                                                                          --type LIGHT --trait action.devices.traits.OnOff \
                                                                          --manufacturer 'Assistant SDK developer' \
                                                                          --product-name 'Assistant SDK light' \
                                                                          --description 'Assistant SDK light device'

Note: The model identifier must be globally unique.

  • Register or overwrite the device instance using the device model (after replacing the 'placeholder values' between quotes):

    googlesamples-assistant-devicetool --project-id PROJECT_ID register-device --device 'my-device-identifier' \
                                                                           --model 'my-model-identifier' \
                                                                           --nickname 'My Assistant Light'

Note: The device instance identifier should be unique within the Google Developer Project associated with the device.

  • Verify that the device model and instance have been registered correctly:

    googlesamples-assistant-devicetool --project-id PROJECT_ID get --model 'my-model-identifier'
googlesamples-assistant-devicetool --project-id PROJECT_ID get --device 'my-device-identifier'

  • List all device models and instances:

    googlesamples-assistant-devicetool --project-id PROJECT_ID list --model
googlesamples-assistant-devicetool --project-id PROJECT_ID list --device

googlesamples-assistant-pushtotalk

This reference sample implements a simple but functional client for the Google Assistant Service.

  • Install the sample's dependencies:

    sudo apt-get install portaudio19-dev libffi-dev libssl-dev
pip install --upgrade google-assistant-sdk[samples]

  • Run the push to talk sample. The sample records a voice query after a key press and plays back the Google Assistant's answer:

    googlesamples-assistant-pushtotalk --device-model-id 'my-device-model' --device-id 'my-device-identifier'

  • Try some Google Assistant voice query like "What time is it?" or "Who am I?".

  • Try a device action query like "Turn <nickname / model product name> on".

  • Run in verbose mode to see the gRPC communication with the Google Assistant Service:

    googlesamples-assistant-pushtotalk --device-model-id 'my-device-model' --device-id 'my-device-identifier' -v

Also see the grpc sample README.

For Maintainers

See MAINTAINER.md for more documentation on the development, maintainance and release of the Python package itself.

Contributing

Contributions to this repository are always welcome and highly encouraged.

See CONTRIBUTING.md for more information on how to get started.

License

Copyright (C) 2017 Google Inc.

Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to you under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.