How to Set Up Your Home Assistant Green

15-20 minutes

What You'll Need

  • Home Assistant Green
  • Ethernet cable
  • Router with available LAN port
  • 12V DC power adapter (included)
  • Computer or smartphone with web browser

Step-by-Step Setup

  1. Connect Ethernet: Plug the Ethernet cable from Home Assistant Green to your router or switch.
  2. Power On: Connect the 12V power adapter to the Green and plug into an outlet.
  3. Wait for Boot: Wait a few minutes until the yellow LED starts blinking in a heartbeat pattern.
  4. Access Interface: Open a browser and go to http://homeassistant.local:8123 (or use the IP from your router).
  5. Create Account: Follow the onboarding wizard to create your admin account.
  6. Set Location: Enter your home location for weather, sunrise/sunset automations.
  7. Discover Devices: Home Assistant will auto-discover compatible devices on your network.
  8. Add Integrations: Go to Settings > Devices & Services to add more integrations.

Key Features

  • Pre-installed Home Assistant OS - plug and play
  • Quad-core ARM processor with 4GB RAM
  • 32GB eMMC storage built-in
  • Two USB ports for adding Zigbee/Z-Wave dongles
  • Local processing - no cloud required
  • Supports thousands of integrations

Troubleshooting

  • Can't access interface: Try http://homeassistant:8123 or find the IP in your router's device list.
  • Yellow LED not heartbeat: Wait longer for initial boot. Can take several minutes on first start.
  • No Zigbee/Z-Wave: Green doesn't include radio - add a SkyConnect or other USB dongle.
  • Ethernet required: Green doesn't have Wi-Fi - use wired Ethernet connection.
  • Factory reset: Flash a new image using the Home Assistant OS installer if needed.