See Every Signal

OpenSweep is a non-profit initiative that transforms abstract engineering concepts into concrete, hands-on experiences.
Through open-source tools, modular hardware, and intuitive software, we make electronics and programming visible, accessible, and engaging.
By encouraging exploration and transparency, we help learners of all levels connect theory with practice.

Our first project

OpenSweep’s first project is a fully breakable, modular spectrum analyzer designed to reveal the inner workings of RF signal analysis. Unlike typical black-box instruments, this device allows users to disassemble and explore each component—from the hardware circuits to the firmware and software layers.
Consequently, it provides a hands-on learning experience that makes Radio Frequency concepts accessible to beginners and engaging for experts. Whether you want to understand how signals are captured, processed, or displayed, OpenSweep offers a transparent platform that clearly demystifies complex RF technology.
Furthermore, this approach encourages experimentation and builds practical skills, which empower users to innovate and troubleshoot with confidence. Ultimately, OpenSweep transforms a sophisticated measurement tool into an open, educational resource—thereby inviting anyone interested in RF engineering to explore, learn, and grow. You won’t only see a spectrum, you’ll see every signal !

Through open-source tools, modular hardware, and intuitive software, we make electronics and programming visible, accessible, and engaging.

Touch, Measure, Learn

At OpenSweep, we believe the best way to learn electronics is to engage with them directly. That’s why we focus on making every part of the learning process hands-on, visible, and understandable. Instead of abstract theory or closed systems, we offer real circuits, real signals, and real opportunities to explore.
As you interact with each building block—both analog and digital—you move from simply using technology to truly understanding it. In fact, every adjustment you make has an immediate, visible effect, helping you connect cause and consequence with clarity. When you see every signal, you can understand the role of each!
Moreover, this practical approach boosts curiosity, reinforces technical concepts, and strengthens problem-solving skills. Rather than memorize how things work, you see how they work—through direct experimentation and discovery.
In the end, OpenSweep isn’t just a way to study electronics. It’s a platform that invites you to touch, measure, and learn—on your own terms, one insight at a time.

Meet the team

Benoit

Hardware Engineer
RPG Player

Designing circuits IRL,
crafting worlds in fantasy.

Cédric

Hardware Engineer
Proud Lab Rat

Designing circuits by spec, testing them by instinct.

Gerd

Hardware Engineer
Solution Finder

Building hardware, finding answers, making it work.

Lukas

Software Engineer
Running Enthusiast

Building Systems by day, conquering miles by dawn.

Paolo

Hardware Engineer
Senior Pipefitter

Playing with R,L & C and refining culinary arts.

Who we are

OpenSweep is a fresh, open-source initiative driven by a small but passionate team from Austria, France, Italy and Sweden. With over 70 years of combined experience in hardware, software, and test instrumentation, we’ve worked in top labs and companies around the world.
Now, we’re using that knowledge to make complex electronics more open, transparent, and fun to explore. Instead of locking systems behind closed designs and hidden firmware, we break them down—step by step, block by block.
Whether you’re new to electronics or diving into advanced RF and embedded systems, we’re here to help you learn, experiment, and build with confidence. For us, engineering isn’t just a profession—it’s something worth sharing.

Curious to join or contribute?

We’d love to hear from you.

What We’re Building

Modular Hardware

Brake it away !

Designed for exploration, OpenSweep offers a fully open-source, modular hardware platform. Specifically, the system operates as a complete spectrum analyzer, yet also provides access to each independent, inspectable subsystem. This unique design philosophy ensures that users can delve into the intricate details of RF design and signal processing. Therefore, it’s not only about understanding how a spectrum analyzer works, but also about learning each individual yet common RF component. Thus, every part, from RF input to digital output, can be easily studied, tested, or repurposed, greatly enhancing learning and prototyping.

Open Firmware

Hack it your way

The OpenSweep firmware is as open and accessible as its hardware. Its clear structure and focus on readability invite deep understanding. The microcontroller, therefore, comes preloaded with an Arduino-compatible bootloader, enabling easy code uploads.
Furthermore, each signal chain stage is a separate, modular library. This allows anyone to understand, control, or rewrite individual blocks, even without deep hardware experience. Thus, you can learn not only the hardware but also precisely how to program it.

Simple Software

Display it all !

Our software is written in Python, ensuring maximum portability and ease of use across Windows, macOS, and Linux. Crucially, it communicates with the hardware using the SCPI protocol, adhering to real instrument standards. Therefore, you can interact with OpenSweep just like professional test equipment, making it ideal for automated test benches. Furthermore, designed for simplicity, modularity, and extensibility, the software is exceptionally easy to tweak. This allows real-time signal visualization, exploration of each processing stage, and seamless interface customization to fit your precise needs.

Learning Resources

Dig it at your pace

To support your signal analysis journey, we’re creating clear, hands-on learning materials that perfectly complement the hardware and software. Specifically, step-by-step guides walk you through each functional block, explaining key concepts with practical experiments and real data. Moreover, each module will feature its own dedicated, interactive hands-on activities. This allows you to experiment directly with the hardware and software components, thereby reinforcing your understanding through practical application. Ultimately, our attractive content makes complex topics engaging and truly discoverable. You won’t only see every signal, you’ll understand each of it!

Join the Conversation

Whether it’s feedback, suggestions, or interest in contributing — feel free to reach out.