I’ve got an old CRT monitor sitting in my storage closet. It’s heavy, takes up way too much space, and most people would have tossed it years ago. But here’s the thing—it’s actually one of the best tools I own for teaching students about computing hardware and hands-on learning. And paired with a Raspberry Pi? It’s a genuine game-changer.
If you’re on the fence about whether a Raspberry Pi is worth your time and money, I get it. There are a lot of competing gadgets out there. But let me walk you through why so many educators, hobbyists, and tech enthusiasts keep coming back to this little board. It’s not about being nostalgic. It’s about what you can actually do with one.
Understanding What a Raspberry Pi Actually Is
First, let’s clear up some confusion. A Raspberry Pi isn’t just a novelty item or a toy for tech geeks. It’s a full-fledged single-board computer about the size of a credit card that runs Linux and can do almost anything a regular desktop computer can do—just on a smaller scale.
What makes it special? The price tag. You’re looking at anywhere from $25 to $75 depending on which model you buy. For that amount of money, you get a functioning computer that you can use to:
- Learn programming with Python, JavaScript, or other languages
- Build IoT projects that sense and respond to the physical world
- Set up a media server for your home
- Create retro gaming stations
- Run web servers and databases
- Control robotics and automation projects
That versatility is huge. In my classroom, students don’t just learn abstract programming concepts—they see their code actually controlling hardware. A student writes a Python script that makes an LED blink, or reads temperature data from a sensor. That’s real feedback. That’s learning that sticks.
The Teaching Advantage Most People Overlook
When I design curriculum, I always look for tools that make learning accessible without sacrificing depth. The Raspberry Pi does exactly that.
Think about the barriers to entry with traditional computers. If a student wants to learn how a computer actually works—down to the hardware level—they’re usually stuck reading textbooks or watching videos. With a Raspberry Pi, they can open it up, see the components, connect different parts together, and experiment safely.
There’s no risk of ruining an expensive machine. If something goes wrong, you troubleshoot it, learn from the mistake, and move forward. I’ve had students spend an entire week figuring out why their GPIO pins weren’t working correctly. That problem-solving process taught them more about computing than months of lectures ever could.
The community around Raspberry Pi is phenomenal too. There are thousands of project tutorials, active forums, and open-source projects you can learn from. When I’m designing a lesson, I can find a project that matches my students’ skill level almost every time.
Connecting to Legacy Hardware (Yes, Even Old Monitors)
This is where that CRT monitor comes in—and why I’m not getting rid of it.
Older displays and peripherals work beautifully with a Raspberry Pi. You don’t need the latest 4K monitor. You can use that old TV in your garage, a vintage computer monitor, or even a projector gathering dust in a closet. That removes another barrier: you don’t have to buy new equipment to get started.
I use this principle in my classes all the time. We’ve built stations using secondhand keyboards, mice, and monitors that would have otherwise ended up in e-waste. Students learn that you don’t need cutting-edge gear to do interesting tech work. You need curiosity and a willingness to tinker.
There’s also something valuable about working with older technology. It forces you to understand fundamentals. When you’re not distracted by fancy features and auto-magical operating system updates, you focus on core concepts. What does an operating system actually do? How do you connect peripherals? How does a command line interface work?
Building Real Projects That Matter
Beyond education, Raspberry Pi is genuinely useful for practical projects.
A few years back, I helped a colleague build a weather station for our school. We used a Raspberry Pi, some sensors, and some basic Python code. Now, years later, it’s still running and collecting data. Another colleague set up a Raspberry Pi-based security camera system for their home. The investment was minimal, but the functionality rivals expensive commercial options.
I’ve seen students build bird feeders with cameras attached, create smart home systems that control lights based on occupancy, and develop meditation timer apps. These aren’t hypothetical exercises—they’re solving real problems or creating things that bring joy.
That’s the core appeal. A Raspberry Pi gets you from “I have an idea” to “I built something” faster and cheaper than almost any other platform. There’s no waiting for expensive equipment, no unnecessary complexity, just you and the tools you need.
Whether you’re an educator designing curriculum, a hobbyist with a project idea, or someone curious about how computers work, a Raspberry Pi is worth your time. Keep that old monitor plugged in. Grab a Pi. Start building. You’ll be amazed at what you can do.
Source: 4 reasons I’m never unplugging my old CRT
Michael Torres