Grab your Raspberry Pi out of the drawer it’s sat in for far too long, dust it off, and get ready to tackle some fun projects this weekend. Today, I’m going to show you how to build your own addressable LED strip, an AI failure detection system for your 3D printer, and even how to access your Calibre server from anywhere in the world.
- Brand
-
Raspberry Pi
- CPU
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Cortex-A72 (ARM v8)
With the Raspberry Pi 4 Model B, you can create all kinds of fun projects, and upgrade gadgets around your home. Alternatively, install a full desktop OS and use it like a regular computer.
Build your own addressable LED strip with Adafruit’s NeoPixel library
DIY means you have full control of the LED strip start to finish
Have you ever looked at those LED strips where you can address a specific LED or section to set multiple colors on one strip, and thought, “Man I want that!” Well, it’s time to build your own with your Raspberry Pi, a NeoPixel LED strip, and a little bit of wiring.
This project is based on the Adafruit NeoPixel LED strip, which offers individually addressable LEDs with 60 LEDs per meter of strip, which is quite dense. The NeoPixel LED strip comes in four sizes ranging from one meter to four meters, meaning you can string it up to 13 feet using just one strip.
The NeoPixel LED strip is actually pretty easy to control with a Raspberry Pi if you follow Adafruit’s guide. You will definitely need some extra hardware, though, and this is absolutely a DIY project and rather than an all-in-one solution like Philips Hue.
For starters, you need to pick up a breadboard if you don’t already have one. Then, grab yourself either the 1N4001 power diode or a 74AHCT125 level converter chip. You’ll need one of these as the Pi only outputs 3.3V, while the NeoPixel LED strip requires 5V to operate properly.
From there, it’s mostly just wiring up the breadboard and programming some LEDs. Adafruit’s guide walks you step-by-step through everything you’ll need to create your own NeoPixel LED strip, which could be a great addition to an office, home theater room, or DIY space.
Prevent 3D print failures without wasting a ton of filament using Obico
Plus gain remote monitoring if your printer doesn’t offer it
Before I got my Bambu Lab printers that have built-in AI spaghetti detection, I relied heavily on Obico running on a Raspberry Pi to prevent filament waste if a print failed. Obico is a simple to install, yet extremely capable, piece of 3D printing software designed to run on a Pi.
While Obico does technically work with Bambu Lab printers, it’s really designed for other brands that offer native USB control, which Obico can use to stop a print dead in its tracks if something goes awry. You can run Obico in two ways: self-hosted or cloud-hosted.
With the self-hosted route, you control the full stack of Obico top to bottom, from the hardware monitoring the prints to the server processing the data and telling the system when there’s a problem. On the cloud-hosted side, you actually are relying on Obico’s external servers to process the data from your local Obico instance.
Either way, the Raspberry Pi acts as a portal from your network to the Obico server to know what it should tell the 3D printer to do.
You simply have to supply a camera feed to your local Obico instance on the Raspberry Pi, and it’ll handle everything else from there. The Obico server you choose to use monitors that feed and looks for signs of print failure. If it sees enough of a failure to warrant stopping the print, it issues a stop command to the printer to prevent you from wasting filament.
Obico has great setup guides for all sorts of hardware configurations, and even integrates with Klipper, OctoPrint, and Duet3D, making it an extremely capable 3D printing add-on for just about any setup.
- Build Volume
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250 x 210 x 220 mm
- Printing Speed
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170mm/s
The Prusa MK4S 3D Printer is one of the most well-known and well-loved 3D printers on the market. As one of the main companies behind the open source initiative of 3D printing, the Prusa MK4S still supports open-source software and firmware when other companies are building their own closed-source alternatives. As the 2025 iteration of the classic Prusa 3D printer, you’ll get all the modern amenities including fast and reliable printing, easy setup, and Prusa’s proven reliability.
Enjoy your eBook library anywhere with Calibre-Web
No Kindle required
With Amazon having removed the ability to extract purchased eBooks from your Kindle last year, you might be looking for an alternative way to read eBooks without Amazon in the middle at all, and that’s where Calibre-Web comes in.
Calibre-Web integrates with a Calibre instance either on your computer or Raspberry Pi to handle the actual library management side of things. Where Calibre-Web really shines is how it displays and allows you to interface with your Calibre instance.
Typically, you have to be in front of the computer on which you run Calibre to access your eBooks. Calibre-Web allows you to access them all from anywhere on earth, so long as you have access to your local network (or a reverse proxy). The web interface that Calibre-Web offers is actually pretty great.
I’ve enjoyed using Calibre-Web in the past to read eBooks without having to keep my Kindle on me. The user experience is solid, it has a great feature set, and there’s even a fun “random” button if you don’t know what to read and want it to pick a random book for you to enjoy.
So, whether you already have a full Calibre library or are just starting out, make sure to install Calibre-Web on your Raspberry Pi to access your eBooks from any device you own.
You probably don’t need as powerful of a Raspberry Pi as you think you do
Regardless of the Raspberry Pi that you own, you can easily do any of the projects on this list. Even the Raspberry Pi Zero would be a great choice for these projects, as it can handle running small web services like Calibre-Web, it has the GPIO needed for the NeoPixel controller, and it can handle camera inputs for Obico.
So, if you’ve not done any Raspberry Pi projects lately because you felt your Pi was underpowered, think again! Go ahead, get that Pi out, and start building some fun projects this weekend.
