6 awesome ways to upcycle an old Raspberry Pi


If you’ve bought a new Raspberry Pi, or just got your hands on an older model that someone else didn’t want, there are many ways to put that little computer to good use, and here are six of them.

Retro gaming galore

Recalbox running on a Raspberry Pi 500+. Credit: Tim Brookes / How-To Geek

One of the most popular uses for Raspberry Pi computers is as a retro gaming emulation system. Which systems can be emulated depends on which specific model of Pi you have, but even the oldest ones can do a great job with retro 8-bit and 16-bit titles, or MAME arcade titles. In fact, building your own arcade cabinet with a Pi at its heart is a common project, and you’ll find lots of instructional guides on the web to that effect.

8bitdo arcade stick for Nintendo Switch.

8/10

Number of Colors

1

Control Types

Arcade Stick


Build your own NAS

A Raspberry Pi configured as a NAS. Credit: Raspberry Pi Foundation

A NAS or Network-Attached Storage device is effectively a local file server that lets you store and access data on your local network using hard drives. You can go out and buy a NAS or you can follow the official Raspberry Pi NAS tutorial and turn your old USB hard drives into a NAS using stuff you already have, or can get for just a few dollars.

Everyone loves local streaming tools like Plex or Jellyfin, but not everyone wants to dedicate an expensive computer to act as the streaming server. Well, as long as your requirements aren’t too fancy, you can use a Raspberry Pi as a Plex server.

Just don’t expect it to handle heavy-duty transcoding. The good news is that most of your client devices can probably play back videos without the need for transcoding.

Turn your Pi into a home automation hub

The Home Assistant Green smart home hub surrounded by smart home devices. Credit: home-assistant.io

Home automation hub devices can cost hundreds of dollars, but if you have an old Raspberry Pi, you can run your smart home off it. The most common and effective solution is an open-source app called Home Assistant.

Raspberry Pi logo above a photo of Raspberry Pi boards.


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Build a weather station

If you’re interested in the weather, want to contribute to weather data, or are just sick of getting rained on when you least expect it, you have the option of getting a weather station kit for your Raspberry Pi or using something like the Raspberry Pi Sense HAT, which can detect pressure, humidity, and temperature, but not wind speed. However, there are also generic wind and rain sensors you can buy, and, of course, don’t forget an outdoor project enclosure.

There are a few guides on the web, but this weather station guide for Raspberry Pi is a good place to get some ideas.

Create a home web server

Another fun project to do is hosting your own little web server using a Raspberry Pi. You can make a website that only works on your home LAN, or even host something that people from outside your home network can access. Using open source software to host your own web resources is highly educational, and it can also be a way to do something genuinely useful without having to rely on a cloud service somewhere on the internet.

Imagine having your own little bulletin board at home, or hosting content like ebooks, music, or audiobooks?


Infinite possibilities

Despite lacking in the raw power department, all Raspberry Pi devices are little miracles—single board computers that can (in principle) do anything their bigger cousins can. Just more slowly. So if you have a few old Raspberry Pis hanging around, don’t be too quick to retire them yet.



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Recent Reviews


After being teased in the second beta, the new “Bubbles” feature is finally available in Android 17 Beta 3. This is the biggest change to Android multitasking since split-screen mode. I had to see how it worked—come along with me.

Now, it should be mentioned that this feature will probably look a bit familiar to Samsung Galaxy owners. One UI also allows for putting apps in floating windows, and they minimize into a floating widget. However, as you’ll see, Google’s approach is more restrained.

App Bubbles in Android 17

There’s a lot to like already

First and foremost, putting an app in a “Bubble” allows it to be used on top of whatever’s happening on the screen. The functionality is essentially identical to Android’s older feature of the exact same name, but now it can be used for apps in addition to messaging conversations.

To bubble an app, simply long-press the app icon anywhere you see it. That includes the home screen, app drawer, and the taskbar on foldables and tablets. Select “Bubble” or the small icon depicting a rectangle with an arrow pointing at a dot in the menu.

Bubbles on a phone screen

The app will immediately open in a floating window on top of your current activity. This is the full version of the app, and it works exactly how it would if you opened it normally. You can’t resize the app bubble, but on large-screen devices, you can choose which side it’s on. To minimize the bubble, simply tap outside of it or do the Home gesture—you won’t actually go to the Home Screen.

Multiple apps can be bubbled together—just repeat the process above—but only one can be shown at a time. This is a key difference compared to One UI’s pop-up windows, which can be resized and tiled anywhere on the screen. Here is also where things vary depending on the type of device you’re using.

If you’re using a phone, the current bubbled apps appear in a row of shortcuts above the window. Tap an app icon, and it will instantly come into view within the bubble. On foldables and tablets, the row of icons is much smaller and below the window.

Another difference is how the app bubbles are minimized. On phones, they live in a floating app icon (or stack of icons) on the edge of the screen. You are free to move this around the screen by dragging it. Tapping the minimized bubble will open the last active app in the bubble. On foldables and tablets, the bubble is minimized to the taskbar (if you have it enabled).

Bubbles on a foldable screen

Now, there are a few things to know about managing bubbles. First, tapping the “+” button in the shortcuts row shows previously dismissed bubbles—it’s not for adding a new app bubble. To dismiss an app bubble, you can drag the icon from the shortcuts row and drop it on the “X” that appears at the bottom of the screen.

To remove the entire bubble completely, simply drag it to the “X” at the bottom of the screen. On phones, there’s also an extra “Manage” button below the window with a “Dismiss bubble” option.

Better than split-screen?

Bubbles make sense on smaller screens

That’s pretty much all there is to it. As mentioned, there’s definitely not as much freedom with Bubbles as there is with pop-up windows in One UI. The latter allows you to treat apps like windows on a computer screen. Bubbles are a much more confined experience, but the benefit is that you don’t have to do any organizing.

Samsung One UI pop-up windows

Of course, Android has supported using multiple apps at once with split-screen mode for a while. So, what’s the benefit of Bubbles? On phones, especially, split-screen mode makes apps so small that they’re not very useful.

If you’re making a grocery list while checking the store website, you’re stuck in a very small browser window. Bubbles enables you to essentially use two apps in full size at the same time—it’s even quicker than swiping the gesture bar to switch between apps.

If you’d like to give App Bubbles a try, enroll your qualified Pixel phone in the Android Beta Program. The final release of Android 17 is only a few months away (Q2 2026), but this is an exciting feature to check out right now.

A desktop setup featuring an Android phone, monitor, and mascot, surrounded by red 'missing' labels


Android’s new desktop mode is cool, but it still needs these 5 things

For as long as Android phones have existed, people have dreamed of using them as the brains inside a desktop computing setup. Samsung accomplished this nearly a decade ago, but the rest of the Android world has been left out. Android 17 is finally changing that with a new desktop mode, and I tried it out.



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