Connections have meaning.
Named terminals and breadboard strips form conductor nets. Crossing wires do not connect. A colored power rail has no voltage until it is wired to a source.
Topology first. Appearance second.FIELDWORK / A PLACE TO WORK THINGS OUT
Build the circuit.
See the idea.
An approachable 3D workbench for exploring how code, components and connections fit together. Make a light blink. Trace its path. Change something and see what happens.
Explore.21 editable studies to start from
Make it yours.Place, wire, preview and undo
Keep your work.Local projects and portable backups
01 / GET YOUR HANDS ON IT
The best way in?
Build something.
A small circuit is all it takes to start asking better questions. Choose a study, power the board and make your first change.
Choose a study, then launch the workbench.Open in a full window ↗
Switching reloads this demo. Save your changes or export your project first.
✳
Start with a little green light.
Launch the real workbench here. Green → yellow → red, with each branch ready to inspect.
Right-drag to orbit · Shift + right-drag to pan · Or use Orbit mode on a trackpadOpen full workbench ↗
Saves in this browser belong to this demo. Use Projects → Back up all projects to keep a portable copy.
02 / THE ENGINEERING BEHIND THE EXPERIENCE
Polish you can see.
Decisions you can inspect.
A good workbench earns your trust in the details: a connection you can trace, an edit you can reverse, and an experiment you can recover.
Preview before commitment.
Place leads and reroute jumpers without touching the saved circuit. Cancel a draft, or commit it as one change that Undo can reverse.
A deliberate boundary between trying and editing.Failures need an exit.
Saved-project validation, stale-tab checks, additive restores and a labeled 2D fallback help keep experiments recoverable.
Recovery is part of the design.Built to explain itself.
The checks cover circuit topology, project validation and recovery. Separate browser checks exercise keyboard control, cancelled drafts, undo, reconnecting wires and graphics-loss recovery.
These results describe the tested build. They do not certify real hardware or every browser.
03 / AN INDEPENDENT STUDENT PROJECT
Made with curiosity.
Refined with evidence.
FIELDWORK is an independent electronics workbench by Ahren Becker, an engineering student. The question behind it: how can a circuit tool make its behavior easier to see, explain and recover?
Product direction and hands-on visual review by Ahren; AI-assisted implementation and automated testing. This case study documents the resulting design decisions, their tradeoffs, and the evidence behind the current build.
What does it actually simulate?
A restricted Arduino-like interpreter, ideal Uno/Nano I/O, supported inputs and simple LED/resistor branches. It does not compile C++, emulate a microcontroller or provide SPICE analysis. Unsupported boards and components are labeled design-only.
What was checked?
This build passes 204 core tests. Separate isolated browser checks exercise placement, reconnection, keyboard and mouse use, cancel/undo, graphics-loss recovery and project persistence. The Windows package is checked against its source assets. These checks do not replace real hardware validation.
Read the build summary ↗Where are my projects saved?
Locally in the browser or the Windows app’s separate profile. There is no live account or cloud sync. Back up your library before moving between browsers or app versions.
04 / TAKE THE WORKBENCH WITH YOU
Keep it on
your desktop.
Buy me a coffee, get a little workbench. Your purchase supports this independent student project. The browser edition stays free, so you can give it a proper try first.
PLANNED OPTIONAL DOWNLOAD
FIELDWORK for Windows
$3.99 proposed one-time price
- 21 editable breadboard studies
- 3D wiring and placement previews
- Local projects, backups and circuit exports
- Windows 10/11, Edge and .NET Framework 4.7.2+
Unsigned portable preview. Extract the complete folder. This download does not add a different simulation engine.