DIY Interruption Sign

In this project we’re making a NeoPixel LED sign using CircuitPython. This was inspired by BusyBox interruption sign so we designed and 3D printed our own enclosure.

Swappable Faceplates

We designed it to have swappable faceplates so the front cover can easily come off. Black LED acrylic is used for the faceplates and evenly diffuses the NeoPixels. Use vinyl cut decals to make high-quality faceplate designs.

Portable & Customizable

The slide switch is built into the side of the enclosure so we can easily turn it on and off.

It runs off a lipo battery so it can be mounted to our door without any dangling cables.


You can use just about any Feather for this project, but if you'd like to later add wireless BLE control, the nRF52840 is the best option!
Angled shot of a Adafruit Feather nRF52840 Express.
The Adafruit Feather nRF52840 Express is the new Feather family member with Bluetooth Low Energy and native USB support featuring the nRF52840!  It's...
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LED RGB matrix 12" x 12" with "Adafruit Industries LED Matrix" text showing, and LED acrylic slowly covering to make it nicely diffused
A nice whoppin' slab of some lovely black acrylic to add some extra diffusion to your LED Matrix project. This material is 2.6mm (0.1") thick and is made of special cast...
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Adafruit NeoPixel Digital RGB LED Strip reel wired to a microcontroller, with all the LEDs in a rainbow
You thought it couldn't get better than our world-famous 32-LED-per-meter Digital LED strip but we will prove you wrong! These...
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Breadboard-friendly SPDT Slide Switch
These nice switches are perfect for use with breadboard and perfboard projects. They have 0.1" spacing and snap in nicely into a solderless breadboard. They're easy to switch...
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Lithium Ion Polymer Battery 3.7v 1200mAh with JST 2-PH connector
Lithium-ion polymer (also known as 'lipo' or 'lipoly') batteries are thin, light, and powerful. The output ranges from 4.2V when completely charged to 3.7V. This...
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10 wire Silicone Cover Stranded-Core Ribbon Cable
For those who are fans of our silicone-covered wires, but are always looking to up their wiring game. We now have Silicone Cover Ribbon cables! These may look...
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Fully Reversible Pink/Purple USB A to micro B Cable
This cable is not only super-fashionable, with a woven pink and purple Blinka-like pattern, it's also fully reversible! That's right, you will save seconds a day by...
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1 x M2.5 Hardware Kit
M2.5 Black Nylon Standoffs and Screws
1 x Acrylic Cutter
10 Pcs Blade Set, Multi-Use Cutter with Cutting Blade
1 x Velcro Strips
Command Picture Hanging Strips, Medium, White, 3-Pairs (17201-ES)
1 x Matte Black Vinyl
12in x 10ft Roll of Oracal 651 Matte Black Craft Vinyl
1 x Engineering Scissors
Super Scissors - PH-57

This guide was first published on Sep 01, 2020. It was last updated on Jun 22, 2024.

This page (Overview) was last updated on Mar 08, 2024.

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