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Pi-hole is the project everyone starts with, and it’s a good one, but a Raspberry Pi is capable of a lot more than blocking ads. These are nine projects that are actually useful day to day, not just neat demos – ranked roughly by how much of a weekend they’ll take.
1. Home Assistant Voice + Automation Hub
Hardware: Pi 4 or 5, 4GB minimum, 8GB if you plan to grow the install. A dedicated Raspberry Pi 5 with a fast USB SSD is the standard recommendation from the Home Assistant project itself.
Home Assistant is the closest thing to a universal remote for smart-home gear that doesn’t lock you into one manufacturer’s app. Install “Home Assistant OS” directly (not the Docker container version, if you want the full add-on ecosystem) and it becomes the hub that ties together your smart plugs, lights, thermostats, and sensors regardless of brand. Setup difficulty: moderate the first weekend, then mostly maintenance-free.
2. PiKVM – Remote Keyboard, Video, and Mouse Access
Hardware: A Pi 4/CM4, an HDMI capture add-on board, a USB-C OTG cable.
If you’ve ever needed to fix a server’s BIOS setting or reinstall an OS remotely and realized you needed physical access to a keyboard and monitor, PiKVM solves that permanently. It gives you browser-based keyboard, video, and mouse control of any machine, at the hardware level, independent of that machine’s OS even being installed. Genuinely useful the first time a remote machine won’t boot.
3. RetroPie or Batocera Retro Gaming
Hardware: Pi 4 or 5, a case with good cooling, USB controllers.
Emulation for anything up through the PS1/N64 era runs comfortably on a Pi 4; a Pi 5 handles PS2 and GameCube reasonably for many titles. This is the easiest project on this list to set up (flash the image, add ROMs you own, plug in controllers) and the one most likely to actually get used by the whole household.
4. Magic Mirror – Info Display Behind a Two-Way Mirror
Hardware: Pi 3 or 4 (light load), a monitor, two-way acrylic mirror film.
MagicMirror² is an open-source framework for showing weather, calendar, and news behind a semi-reflective mirror surface, so it looks like a normal mirror until it’s displaying information. It’s more of a build project (mounting, framing, the mirror film itself) than a software project – the software setup takes an evening, the physical build takes a weekend.
5. WireGuard VPN Server
Hardware: Any Pi from a 3 onward. This is an extremely light workload.
Setting up WireGuard on a Pi gets you a way to securely reach your home network from anywhere – your file share, your Home Assistant dashboard, your security cameras – without exposing any of them directly to the internet. pivpn turns this into a 15-minute guided install rather than a manual configuration exercise. This is one of the highest value-per-effort projects on the list.
6. Frigate NVR With a Coral Accelerator
Hardware: Pi 5 8GB, a Google Coral USB accelerator, IP cameras with RTSP support.
Frigate does real-time object detection on camera feeds (person, car, animal, package) instead of just motion detection, which cuts down false alerts dramatically. A Pi alone will choke trying to run detection in software; the Coral accelerator offloads that to a dedicated chip and makes it workable. Without the Coral, skip this one and run Frigate on a mini PC instead.
7. Network-Wide Ad Blocking + Recursive DNS (Pi-hole + Unbound)
Hardware: Any Pi, even a 3B+.
The classic starter project, still worth doing properly: pair Pi-hole with Unbound so DNS queries resolve directly against the root servers instead of passing through a third-party resolver like Google or Cloudflare’s DNS. Slightly more private, and it removes one more company from your household’s browsing metadata.
8. CUPS Print Server
Hardware: Any Pi, a USB printer.
Plenty of older but perfectly functional printers only support USB, not Wi-Fi. Plugging one into a Pi running CUPS makes it available to every device on the network as if it were a modern networked printer. Fifteen minutes of setup, and it means never digging out a USB cable to print something from a laptop again.
9. A Whisper-Based Voice Transcription Box
Hardware: Pi 5 8GB (16GB Pi 500+ desktop kit if you want more headroom).
Running a small quantized Whisper model (whisper.cpp, tiny or base size) on a Pi lets you transcribe short voice notes or feed voice commands into Home Assistant without sending audio to a cloud service. It’s noticeably slower than a phone’s built-in dictation, so treat it as a batch tool rather than a live conversation partner – but for short clips it’s a genuinely useful, fully local building block, especially alongside Home Assistant’s local voice assistant pipeline.
Picking Your First (or Next) Project
If you don’t already have a Home Assistant setup, start there – it has the widest day-to-day payoff. If you already run one, WireGuard is the next highest value for the least effort. Save Frigate and the Whisper transcription box for once you’re comfortable with Docker and comfortable troubleshooting a service that occasionally needs a restart.
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