Home Assistant Box

The aim of this project is to build a mini Home-Assistant server containing a single-board computer (maybe a RaspberryPi) that can run Home Assistant and connect all your smart devices. Prebuilt Home-Assistant exists but they are expensive and now they have stop the production of them. You can build it for €119.07 if you already have certain tools and €145.15 if you don't have any parts.

Created by charlestexier54

Tier 2

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Kai Pereira 🚀 requested changes for Home Assistant Box 12/23/2025 at 8:20 PM ago

Hello! Please create all your 3D assets yourself, you're not allowed to take box models off of the internet . You also need a full wiring diagram and properly formatted BOM. Please submit your own work!

charlestexier54 submitted Home Assistant Box for review 12/23/2025 at 6:27 PM ago

charlestexier54 added to the journal 12/23/2025 at 6:24 PM ago

Clarifying the Project: Home Assistant Server Architecture

Hi, thanks for the feedback.

I wanted to clarify a few things about the hardware. This project is not just a gateway or an intermediary. It is the full Home Assistant Server.

It runs the Operating System, the database, and the heavy Multiprotocol firmware for the Zigbee dongle. A Nordic chip or a Raspberry Pi 3 would be too weak for this workload, which is why the Raspberry Pi 4 (4GB) is necessary.

Also, the D1 Mini inside is used specifically to control the LEDs with WLED, so it doesn't slow down the main server.

I hope this explains the setup better. If you still feel the project needs more to reach Tier 2, let me know, and I am willing to design a custom PCB to improve the internal wiring.

Thanks!
Capture d'écran 2025-12-23 192344 Capture d'écran 2025-12-23 191507

funkeudo requested changes for Home Assistant Box 12/23/2025 at 1:17 AM ago

Hi! This is really cool but a raspberry pi 4 is not needed for this, try looking into a Nordic thingy as those work with Matter and Zigbee out of the box; if you need more computing power, a raspberry pi 3b+ could work. Additionally, please include a mockup of the case with all of your parts inside. Finally, this is more of a tier 4 as all you're really making is the CAD case - could you maybe make a PCB to qualify this for t2? Thanks!

charlestexier54 submitted Home Assistant Box for review 12/22/2025 at 5:41 PM ago

charlestexier54 added to the journal 12/22/2025 at 11:41 AM ago

Designing the Box

DAY 2

Design

Today, I design a components plate and a box for it. The components plate clips into the box without screws or glue. You'll need some magnets 10*2mm to clip on the back plate, also you'll need M2.5 inserts and M2.5x5 mm screw for securing the Raspberry Pi.

(Style)

On the components plate you can a small place to fit a D1 (ESP8266), in the front of the box there is a small groove for LEDs you can configure the D1 with WLED and make the box looks better.