[TUTORIAL] Create your own Homey mini!

Create your own Homey mini!
Perfect for notifications and reminders.

What you need

3D Printing the Case

The case of the Homey mini can be 3D printed in two parts; the Top Case and Bottom Case. Both require a filament change mid-print.

The lower part of the Bottom Case is printed in black, while the rest should be printed with a transparent filament. This is crucial for the light diffusion.

While the Top Case can be printed in one color, printing it in two colors is more true to the original. That’s why the lid should be printed in black and dark grey.

I’ve used a Bambu Lab X1 Carbon printer with AMS system to automatically switch filaments. In the Model Files on Printables there is a link to the Bambu Studio files, including all the right settings. For other printers I recommend a layer height of 0.12 mm with 15% infill. With those settings the color change should be done at layer 21 for the Bottom Case, and layer 12 for the Top Case.

Used filaments:

  • Eryone Standard PLA Transparent
  • eSun PLA+ Grey
  • eSun PLA+ Black

Installing the software

Homey mini runs on the popular WLED firmware. Installing is as simple as plugging your D1 Mini into your computer using an USB-C cable. Then visit the WLED Web Installer over at https://install.wled.me (make sure to use Chrome or Edge). Follow the instructions to flash the latest WLED firmware.

When the installation is done, open the WLED interface by visiting the IP address of your D1 Mini in your browser.

Click the Config button, followed by LED Preferences.

Under Hardware setup set the Length to 16 (the number of LED’s in the NeoPixel Ring). Make sure that the GPIO is set to 2 (this is D4 on the D1 mini). Then click Save. Now that the firmware is installed, you can unplug the D1 mini and continue to the construction part.


Putting everything together is fairly easy. Solder some wires (keep them long enough for now) to the 5V, G and D4 pins of the D1 Mini. Make sure to solder them while the USB-C plug is facing downward. Once the soldering is done, make sure the wires won’t stick out of the back. If they do, cut them down with some flush cutters.

Align the D1 Mini – with the USB-C connector facing downward – in the cutout on the Bottom Case and press it down firmly. It should snap into the base snugly.

Take the wires coming from the D1 Mini and route them through the center of the NeoPixel Ring, with the LED’s facing down. The ring should snap on the center part of the Bottom Case.

Now shorten the wires (while keeping some slack) and solder them to the pads on the NeoPixel Ring. See the connection diagram below.

Once the soldering is done, it’s time to check if everything works. Connect a powered USB-C cable to the D1 mini and the lights should turn on automatically.

If everything works correctly you can close the Homey mini by snapping on the Top Case. Align the hole for the USB-C connector and press down the Top Case until fully closed.


Now that your Homey mini is working, you want to connect it to your real Homey for use in Flows.

The most straightforward way is to use the HTTP Request API.

Check out the documentation for a complete list of LED controls:

Example: 192.168.XX.XX/win&A=255 sets the brightness to maximum

Example: 192.168.XX.XX/win&A=128&FX=0 sets the brightness to half and the effect to Solid

When you create a Flow, select the HTTP Request Logic Card and make a GET request using the URL formatted like the examples above.

EDIT: As mentioned by @Robin_van_Kekem it’s also possible to connect the Homey mini directly using the D.A.L.O.R app for Homey!


Behind the scenes

I also made this even tinier Homey nano, using the Seeed Studio XIAO-ESP32-S3. While it looks really cool, the WiFi reception without separate antenna is unfortunately nearly zero.


Nice, well done!
If it’s based on WLED, you can use D.A.L.O.R App for Homey | Homey app for controlling it!

1 Like

@Robin_van_Kekem Thanks! I’ve added that to the description!


Nice project @basvanderploeg

is there a chance, that you create a variant for a 24 led ring, please?

but first I try upscaling;)

Super goed gemaakt, Bas.
Lekker compact en het effect is super.
Je bent ook erg goed met 3D printen zo te zien. Leuk!

Je zou in plaats van de Seeed Studio XIAO-ESP32-S3 ook deze kunnen gebruiken.

Deze heeft een ingebouwde antenne; is wat goedkoper maar wat lastiger te programmeren door gebrek aan interne controller.

Ik heb 'm gebruikt in mijn Huisnummer (ja natuurlijk moet die op internet zitten omdat het kan) en in mijn Digitale Led klok (die trekt via NTP de tijd van het internet)

Een klein maar fijn en betrouwbare MCU.

Ga je je product ook verkopen?
Ik gebruik momenteel mijn Homey 2016 LED ring om het Energieverbruik te tonen. Met een losse module kan ik dat in meerdere kamers tonen, wat wel nice zou zijn.

Wat een tof project! Ik denk dat ik daar ook maar eens mee ga spelen binnenkort :smiley:

Sorry English:
What an awesome project! I think I will order and play around a bit with this as well :smiley:

Nice job!

This will get me my soldering iron, order some parts en make me one Homey remote LEDring device!

If you get in production mode for the Mini homey housings, I am interested!

Thanks for sharing!

edit: I made me one, works and looks great! Thnx again for sharing!

1 Like


Great job :slight_smile:

Thanks a lot for this very nice tutorial.

I have a Bambu Lab X1 Carbon printer with AMS too and no problem with eSun PLA+.

Buy I have never try Eryone Standard PLA Transparent, can you help me with the parameter you used with this filament please ?

Sorry for my bad english.

I was looking for a suitable box where I could put the ESP module, which helps communicate with the DSC alarm system. Your project inspired me too. I made some changes in the interior. I left the WS2812 LED effect to Arduino with Adafruit neopixel library instead of WLED.
Although the result was not as realistic as yours because I did not have transparent filament, I was happy with the result. :slight_smile: