Plug and Play Home Assistant Green Setup Tutorial – Home Assistant Step-by-Step Tutorial EP 15

If you are studying Home Assistant and see everyone talking about Raspberry Pi, NUC, NAS, x86, virtual machine...all the terms make you confused, then congratulations, you are in the right place!

After trying Home Assistant Green myself, I can say that this is the easiest way to set up Home Assistant! Because there is no so-called "setup" at all, you just need to plug in the cable, wait, create an account, and you can start using it! It’s almost the same as most off-the-shelf cloud hub systems (Apple HomeKit, Google Home), but the difference is that Home Assistant runs completely locally to provide higher privacy and more flexible customization functions. Let’s get started! 👏

Home Assistant Green Unboxing

Home Assistant Green 開箱
  • Carton Box: Normally you don’t pay much attention to the carton when opening a box, but this one is really beautifully made🤣
  • Host Home Assistant Green: The appearance is nothing to say, one word is "beautiful".
  • Various adaptersPlug adapters
  • Gigabit Ethernet cable

size

Home Assistant Green 主機

The size of the host is quite small, with a square shape of 11.2 cm and a thickness of 3.2 cm, which is about the size of the palm of an adult male’s hand. When you pick it up, you can feel that the assembly quality is very solid. There is a whole piece of aluminum heat sink at the bottom. Just put the host on Heat dissipation is not a problem in a well-ventilated place 👍

port

Home Assistant Green 連接埠

From left to right they are:

  • Power socket: special reminder! Never use an unknown power supply. It is safest to use the one provided by the original manufacturer!
  • USB 2.0 Type-A ⨉2: Used to connect external devices. The most common use is to connect external gateways or storage devices.
  • HDMI: Usually not used.
  • Ethernet hole: Connect to a wired network (Home Assistant Green does not support wireless networks).

Step 1. Plug in power and network

Home Assistant Green 插上電源、網路

After the cable is plugged in, the indicator light will start flashing, indicating that Home Assistant is being installed. The installation time is related to the network environment. The faster the network speed, the faster the installation. After the installation is completed, the yellow indicator light will flash steadily.

Step 2. Home Assistant initial setup

  1. Open http://homeassistant.local:8123 in your browser

If you see the following screen, it means that Home Assistant is still being installed. The latest version of Home Assistant Core (about 700 MB) will be installed by default. The installation speed depends on your network environment.

Home Assistant 安裝進行中
Image credit: Home Assistant
  1. Click "Build My Smart Home"

There are two options here: "Build my smart home" and "Restore from backup". Today I will focus on introducing how to start from scratch. Friends who already need to use backup and restore should have a certain foundation and can do it by themselves.

建立我的智能家庭
  1. Add new user

The new user here will be the main administrator of this family. Please set it carefully. It is strongly recommended to set a highly secure password!

Special attention! Please save your login information carefully. If it is lost, there is no other way to retrieve it. However, this also demonstrates the high security of Home Assistant as a fully local-run smart home system.

⚠️ There are two fields that are very similar and may cause confusion. Special reminder:
– Name (Chinese: name) is the name that will be displayed on the interface in the future
– Username (Chinese: user name) is used to log in

創建帳號
  1. Set home location

If you don’t want to set it, you can skip it now and update it in the system setting options in the future.

設定家庭所在位置

Done!

When you see a screen like the one below, it means that your Home Assistant has been set up! Next, start enjoying your smart home life!

Home Assistant Dashboard

Next, you can continue to improve your smart home. There are several directions you can start trying:

  1. Use Zigbee2MQTT to connect to smart home devices and get rid of dependence on brand gateways:
  1. Build your own home automation:
  1. Want to control your home devices from God’s perspective? Read this:
12 COMMENTS
  1. Thanks Neil for sharing~ I am setting up a new home network recently. Although I may test the waters with Homekit first, I want to ask if there is any restriction on where to connect HA Green to the Internet? Should I connect it directly to the router or behind the Switch?

    • Hi K,
      If the bandwidth is sufficient, then it's almost the same. In theory, the closer to the source, the better. I connect it to the router.

  2. Hi Neil,
    Thank you for sharing. It is a great honor to have you as a pioneer and selfless sharer in the journey of building a smart home.
    I was inspired after reading your article and wanted to buy Home Assistant Green to play with at home. However, SeeedStudio could not be delivered to Taiwan for some reason.
    I hope I can buy it successfully before moving in and set up a smart home well!!!
    I wish you, Ashan and your baby all the best and happiness♥

      • Received, thanks for sharing!!! I found it on Taobao, the price seems to be similar to that of seeedstudio
        But are the products bought on Taobao the same as the international version? I tried to look up information but couldn't find any relevant instructions. I'm also worried that there might be restrictions if I buy it on Taobao. Does Neil know?

      • Hi L, as long as it is Home Assistant Green, there is no version difference. Be careful not to buy a strange HA box.

      • Thanks to Neil for the help
        I just got the Home Assistant Green today and have just finished setting it up. I will start researching how to set up my own smart home.
        Thank you so much for your selfless sharing. I'm so excited.

  3. Thank you, Brother Neil. I have been exposed to smart homes since last year and have benefited a lot from your teaching articles. Now I have lived in my new home for half a year and I am very satisfied with the smart home I built.
    I wish you a Merry Christmas, a Happy New Year and all the best

  4. Thank you Neil, you are my mentor on the journey of smart family, you have inspired me many concepts and practices. The festival is approaching, I wish you and Ashan happiness and peace~~

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recent discussions
  • Neil 2025/05/29Hi Husn, I recommend using Zigbee or Matter for connection! Zigbee accesses HA through Z2M, Matter directly accesses, and WiFi accesses HA through Tuya, which is more troublesome. It is also recommended to find a rectangular one, because generally a small round smart socket inserted into a double socket will compress the space of the other socket.The Ultimate Guide to the Smart Home in 2025! – SMART HOME EP 6
  • Husn 2025/05/29I would like to ask you one more question. I want to use a smart socket to control traditional mechanical home appliances (electric fans). If it is Tuya's small round smart socket, can it be connected to HA? I see that it uses WIFI, or is it better to find one with MATTER? Thank you very much for your guidance.The Ultimate Guide to the Smart Home in 2025! – SMART HOME EP 6
  • Neil 2025/05/24Hi Andy, your understanding is correct. When the switch is turned off, the lamp will be disconnected directly. There are two ways to do this: 1. Replace the switch with a smart switch that supports the "decoupling" function, that is, the button and the relay can be separated, so that the lamp is always powered, and then the switch and lamp are linked through the smart central system. 2. [The switch must have a neutral wire] In the switch box, connect the live wire to the control wire (the control wire does not enter the switch) to change the lamp and switch from series to parallel, so that the lamp is always powered, and then set the switch in the smart central system to link the lamp★ If you are not sure about the wiring, it is recommended to find a professional plumber to handle it!A complete analysis of smart home lighting control solutions: smart switches, smart bulbs, smart relays, there is always one that suits you!
  • Andy 2025/05/24Sorry, I want to ask Neil a very basic question. Currently, we all use HomeKit. The switch has been replaced with a green-silver smart switch. Will there be any problems if the bulb is replaced with a smart bulb? After all, when the switch is turned off, the light should be disconnected directly. Will it show no response in HomeKit? Or can it be avoided by setting it as a group with other accessories? Thank you. I want to keep the position of the physical switch, but also want to control the light color and brightness. I hope you can give me some guidance.A complete analysis of smart home lighting control solutions: smart switches, smart bulbs, smart relays, there is always one that suits you!
  • raja 2025/05/24This article is written in great detail and is very helpful for those who want to get started with smart home! Looking forward to your follow-up tutorials, thank you for sharing!Home Assistant installation steps detailed, quickly build a smart home – step-by-step tutorial EP 1
  • Neil 2025/05/23Hi Husn, looks like there is a chance: https://www.facebook.com/share/p/1UyoRxwx7q/The Ultimate Guide to the Smart Home in 2025! – SMART HOME EP 6
  • Husn 2025/05/23Excuse me, but I have to ask again, is there any chance to achieve dual voice control? Can I use Xiao Ai or OK GOOGLE? In addition, because the Xiao Ai speaker I use has an infrared remote control function, if this part is changed to GOOGLE, is there any way to control it? Thank you very much for your answer!The Ultimate Guide to the Smart Home in 2025! – SMART HOME EP 6
  • Neil 2025/05/23Hi Husn, 1. Voice control: You can use Google Nest Hub for voice control. I am currently using Google Nest Audio. HA settings are in "Settings > Voice Assistant > Google Assistant" 2. Mijia and HA automation conflict: If the same automation is set in both systems, or both systems have automations to operate the same device, there may be conflicts. It is recommended to move all automations to HA management, once and for allThe Ultimate Guide to the Smart Home in 2025! – SMART HOME EP 6
  • Husn 2025/05/23Hello Neil, thank you very much for sharing. I have learned a lot. I would like to ask you a question. I have successfully set up HA with VM on NAS recently. I have also connected Xiaomi products to HA, but I still use Xiaoai for voice control. Is there any way to change this part to Siri or Google home products? For example, Google Nest Hub. I also want to ask, because I used Mijia to set up the automation before, and I still do, so if I switch to HA for setting up, will there be a conflict with Mijia?? Sorry, I have so many questions, thank you for your answers in advanceThe Ultimate Guide to the Smart Home in 2025! – SMART HOME EP 6
  • Neil 2025/05/21Hi Nichole, Home Assistant and Apple Homekit are different systems, so they don’t need to be the same account. If you want to connect a device that has been set up in Homekit to Home Assistant, you can Google to check “Homekit cannot be connected to Home Assistant”Home Assistant installation steps detailed, quickly build a smart home – step-by-step tutorial EP 1
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