Breadboarding Online & Chip Music: Maker Tools Worth Knowing

When Side Projects Become the Main Event

Some of the most exciting tools in the maker and music world don't come from boardrooms or venture-backed startups. They come from someone sitting at their desk, mildly distracted from their actual task, thinking: what if this existed? That's exactly how breadboard.ing was born — and it's exactly why I think you should pay attention to it. Alongside it, a decades-old music format called tracking is having a quiet renaissance, powered by a free, open-source tool called Furnace that lets you compose directly on emulated vintage chips. These two tools sit at the intersection of nostalgia, creativity, and genuinely useful engineering — and if you're a maker, a musician, or simply someone who loves seeing elegant solutions to real problems, they deserve a closer look.

What Is breadboard.ing and Why Does It Matter?

If you've ever tried to document a hardware project — explaining which wire connects to which pin, which component sits where — you already know the pain. Fritzing has long been the go-to tool for creating those clean breadboard diagrams. It's powerful, it's established, and the Adafruit Fritzing footprint library is genuinely excellent. But Fritzing is also a desktop application, which means installation, version conflicts, and the friction of switching contexts every time you need to sketch a quick connection diagram.

Scott's solution was elegantly simple: build a web-based, Fritzing-inspired diagramming tool that lives entirely in the browser. breadboard.ing, available now as a GitHub Pages site, lets you drag and drop components — including Adafruit's own Fritzing footprints — onto a virtual protoboard. You can snap components to a 0.1-inch grid, connect them with wires, bend those wires into shape, and get live net detection that tells you when components are properly connected.

The part that genuinely surprised me? All state is saved directly in the URL. There's no server, no database, no login. You build your circuit, copy the URL, and share it. Anyone who opens that link sees exactly what you built. Yes, the URLs get long. But the tradeoff — zero infrastructure, zero maintenance, instant sharing — is a remarkably honest engineering decision. It reflects a philosophy I deeply respect: solve the actual problem, not the imaginary scale problem you don't have yet.

Breadboard.ing is also entirely vibe-coded, meaning Scott used AI coding agents to accelerate its development. This isn't just trivia — it's a signal about how quickly solo makers can now ship useful tools. Features that would have taken weeks to prototype are being sketched out in hours, and the resulting tool is already useful enough that members of the Adafruit community are being invited to throw their own agents at it and contribute improvements.

The Real-World Use Case: Hardware in the Loop Testing

The reason breadboard.ing exists at all is deeply practical. Scott was working on hardware-in-the-loop (HIL) testing — a technique where real hardware is connected to a simulated system to verify that code behaves correctly under realistic conditions. When you're building test harnesses, you need to clearly communicate how a harness device connects to a test device. Pin mapping, wire routing, component placement — all of it needs to be documented and shared with collaborators.

Fritzing solves this, but the friction of a desktop app breaks the flow. A web tool that you can host on the device itself, or embed in documentation, changes that equation entirely. Imagine flashing a microcontroller and having its own web server serve up an interactive diagram of how it's wired. That's the vision Scott is building toward, and breadboard.ing is the first step.

For makers who build test rigs, educational kits, or complex multi-component projects, this kind of lightweight, shareable diagramming tool fills a genuine gap. Watch this one.

Furnace Tracker: Composing Music on Vintage Chip Hardware

Shift gears entirely, and we find ourselves in a completely different kind of maker creativity: chip music. If you grew up with a Sega Genesis, a Commodore 64, or any number of classic gaming systems, you already have a deeply wired emotional connection to the sounds those machines made — the FM blips of Sonic the Hedgehog, the warm buzzing square waves of early PC games, the distinctive rasp of a SID chip.

Furnace is a free, open-source tracker that lets you compose music using accurate emulations of those original chips. Not samples of those chips. Not approximations. Full emulation — including the delightful grit, the aliasing artifacts, and the quirky character that made those sounds so distinctive in the first place.

A tracker, for those who didn't grow up with them, is a type of music sequencer where notes are entered into a grid — a pattern — rather than drawn on a piano roll or played into a timeline. Each column in the tracker is a channel, and each row is a unit of time. It's a different way of thinking about music composition, one that rewards precision and encourages a kind of systematic creativity.

Why Furnace Is Worth Your Time Even in 2025

Modern DAWs like Ableton Live are extraordinary tools. They're flexible, they sound incredible, and the plugin ecosystem is essentially infinite. But there's a particular kind of creative constraint that comes from working within a system's limitations — and Furnace delivers that in spades.

With the Sega Genesis chip set loaded, you get six channels of FM synthesis plus square wave and noise channels from the console's secondary chip. That's it. No endless plugin browsing, no analysis paralysis. You work with what you have, and you find creative ways to make it sing.

What makes Furnace genuinely powerful is the depth of control it offers within those constraints. The instrument editor lets you program changes directly in the chip — modifying operator-level parameters like attack and multiplier independently of the channel's volume automation. The result is sounds that evolve in ways that feel organic and alive, like a bass line that slides into each note with the warmth of an upright bass, achieved entirely through FM parameter macros.

And here's where it gets really interesting for experimenters: you're not locked to one chip per project. You can mix a Sega Genesis FM section with a SID chip from a Commodore 64 in the same song. The sound design possibilities are genuinely wild, and the pattern visualiser — a real-time display of your notes firing across channels — makes the whole thing feel alive in a way that standard DAW interfaces rarely do.

Tracking as a Creative Practice Worth Revisiting

There's something to be said for returning to a tool you used years ago and discovering that the muscle memory is still there, buried somewhere under a decade of piano rolls and mixer automation. Tracking has a different grammar than timeline-based composition. You think in patterns and sequences rather than long arcs. You build small, reusable cells of music and chain them together.

For people who grew up tracking — using tools like FastTracker, Impulse Tracker, or MilkyTracker — coming back to the format through Furnace can unlock a kind of compositional fluency that modern DAWs sometimes obscure. The interface demands commitment. You bake decisions into patterns. That constraint, paradoxically, often makes finishing things easier.

For newcomers, the learning curve is real. But if you have any interest in game audio, chiptune composition, or simply a different way of thinking about music, the investment pays off quickly. The Furnace community is active, the documentation is solid, and the sheer number of supported systems — game consoles, home computers, arcade boards — means there's always something new to explore.

Two Tools, One Shared Philosophy

What strikes me about both breadboard.ing and Furnace is how clearly they reflect a maker philosophy: use the right tool for the job, even if you have to build that tool yourself. Scott needed a lightweight circuit diagrammer that could live in a browser and be shared with a URL. Furnace's developers needed a tracker that could accurately emulate vintage chips without the limitations of sample-based approaches. Both teams built what they needed, shared it with the world, and ended up creating something genuinely useful for thousands of other people.

This is what the maker community does best. Not waiting for a corporation to ship a feature, but sketching, prototyping, vibe-coding, and shipping — even if the URLs are a bit long and the KiCad importer isn't quite working yet.

If you're a maker, try dragging a Feather onto breadboard.ing and mapping out your next project's wiring before you touch a single physical wire. If you're a musician with any nostalgia for classic game sounds, download Furnace and spend an afternoon with six channels of Sega FM. Both experiences will remind you why you got into this in the first place.

Frequently Asked Questions

What is breadboard.ing and is it free to use?

breadboard.ing is a free, browser-based circuit diagramming tool inspired by Fritzing. It's hosted on GitHub Pages, requires no login or installation, and lets you drag and drop components — including Adafruit Fritzing footprints — onto a virtual protoboard. All your work is saved directly in the URL, making it easy to share circuits with collaborators.

How does breadboard.ing compare to Fritzing?

Fritzing is a powerful desktop application with a large component library and established community. breadboard.ing trades some of that depth for zero-friction access — it runs entirely in the browser, requires no installation, and saves state in the URL rather than a file. It's currently best suited for quick circuit sketches and sharing pin mappings rather than full PCB design workflows.

What is Furnace tracker and what chips does it support?

Furnace is a free, open-source music tracker that provides accurate emulation of vintage chip hardware rather than sample playback. It supports a wide range of systems including the Sega Genesis (Mega Drive), Commodore 64 (SID chip), various arcade system boards, and many home computers. You can even mix multiple chip emulations within a single project.

Do I need prior experience with trackers to use Furnace?

Prior tracker experience helps significantly, as the grid-based interface is quite different from timeline-based DAWs like Ableton Live or GarageBand. However, Furnace has solid documentation and an active community, and if you're interested in chiptune or game audio composition, the learning curve is absolutely worth the effort. Starting with a single chip set and a simple melody is the best way in.