GooglePi - Google Assistant on Raspberry Pi

In this project we are building a DIY Google Home using your Raspberry Pi, also known as Google Assistant.

Things You Need

• Raspberry Pi 3

• Google Account

• Speaker (Follow this tutorial Maker Your Own Speaker)

• Mic (am using a webcam, with a built-in mic)

Step 1: Setup Raspberry Pi

Follow this tutorial: Setting VNC Server in Raspberry Pi to set up yours.

Step 2: Setup Google Assistant API

2.1: Open Browser in Pi and go to: https://console.cloud.google.com/cloud-resource-manager

2.2: Click CREATE PROJECT for creating new project

2.3: Name your project. Here, mine is: googlepi

2.4: Open your project by clicking your project name

2.5: Open API Manager Dashboard

API Manager => Dashboard

and click ENABLE API

2.6 : Open Library and Search Google Assistant

Click the Enable Button for enabling Google Assistant API

2.7: Create credentials for it

open Credentials and goto OAuth Consent screen

Enter product name and leave everything as default, and save it

Go to credential

Click OAuth Clinet ID

Choose Other and give it a name and hit Create button .

Now you created and authentication key.

Download the Credential by clicking down arrow. You'll get an json file.

We're done with the authenticating and adding the apps to your project now. We're going to start downloading the tools to get Google Assistant on your Pi.

Step 3: Setup Google Assistant in Pi

3.1: Setup python virtual environment

Sudo apt-get install python3-dev python3-venv

3.2: Download Dependencies

Sudo apt-get install portaudio19-dev libffi-dev libssl-dev

3.3: Setup Python3

python3 -m venv env

env/bin/pip install setuptools --upgrade

Now we are set the virtual environment

source env/bin/activate 

Now we are in the virtual environment

3.4: Install Google Assistant SDK

python -m pip install google-assistant-sdk[samples]

For new version (Updated SDK)

pip install --upgrade google-auth-oauthlib[tool]

3.5: Setup Google Assistant SDK with Credentials

After /home paste your credential file location

python -m googlesamples.assistant.auth_helpers --client-secrets /home/pi/Downloads/xxx 

For Updated SDK use

google-oauthlib-tool --client-secrets path/to/client_secret_XXXXX.json --scope https://www.googleapis.com/auth/assistant-sdk-prototype --save --headless

After this you will re-direct a permission page

Like this:

Click ALLOW

Then you get a message like this, meaning your authentication is completed.

Step 4: Let's Test Google Assistant in Pi

4:1 Run Your Assistant

Type this for Run Your Assistant

python -m googlesamples.assistant 

For Updated SDK use

python -m googlesamples.assistant.grpc.pushtotalk

After the setup, you'll get something like this in your terminal, then all things working good.

Don't forget to connect your speaker and mic, and press enter. Ask anything you want. :-D

Enjoy your new DIY Google Home.