Situatie

Step 1: Install Operating System

1. Download Raspberry Pi OS Lite (no desktop required)
2. Flash it using Raspberry Pi Imager or Balena Etcher
3. Enable SSH (optional but recommended):
   • Place an empty file named ssh in the boot partition
4. Boot your Raspberry Pi and connect:

Step 3:  Plug in your microphone and speaker, then run:

Test recording:

If you hear playback, your audio setup is working correctly.

Step 4: Enable Google Assistant API

1. Go to Google Cloud Console
2. Create a new project
3. Enable the Google Assistant API
4. Create credentials:
   • OAuth Client ID
   • Choose “Desktop App”
5. Download the JSON credentials file to your Raspberry Pi

Step 5: Install Google Assistant SDK

Install dependencies:

Create a virtual environment:

Install required Python packages:

Step 6: Authenticate

Run:

Follow the provided link, log in, and paste the authentication code back into the terminal.

Step 7: Run Google Assistant

Test the assistant:

Press Enter, speak your command, and the assistant should respond.

Step 8: Enable Hotword (“Hey Google”)

The official SDK does not currently support native hotword detection, but you have two options:

Option A: Push-to-talk

• Use keyboard input or a physical button to trigger listening

Option B: Third-party wake word engines

• Snowboy (deprecated but still usable)
• Porcupine (recommended alternative)

Step 9: Auto-Start on Boot

Create a systemd service:

Example configuration:

Enable and start the service:

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