CIRCUITS
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How to use
Build a circuit with Romex-style wire — hot (+), neutral (−) and ground — and drop in outlets, switches, 3-ways, lights, a GFCI and a breaker. It energizes live as you wire, and flags shorts, ground faults and open/broken runs while you build. A sketchpad for making sense of household wiring.
- Add a part, then drag it to place.
- Click a terminal dot (H/N/G), then another, to run a wire.
- Click a switch pill to flip it; a 3-way pill swaps travelers.
- Click a part or wire to select; Del or Delete selected to remove.
- Drag a wire to reshape its route for export (it re-routes if you move a connected part).
- Start every circuit from a Breaker — it's the power source.
- Opening an Example stashes your work — hit ↩ My work to return to it. Your board is saved automatically.
- Export a dark PNG/SVG for screen, or a light Blueprint / Print version for paper.