Getting started

Your first circuit

1. 1Find the Battery in the palette on the left (or type “battery” in its search box), click it, then click anywhere on the bench to place it.
2. 2Place a Resistor (220 Ω by default) and an LED the same way. Press Esc when you're done placing; press R before clicking to rotate.
3. 3Switch to the Wire tool and connect: battery + → resistor, resistor → LED anode (the left pin), LED cathode → battery −. Free-placed parts show round pads at each pin, and wires connect any pad to any pad.
4. 4Make sure the sim is running (Space toggles run/pause). The LED lights, the status bar says “1 LED lit”, and hovering any pin shows its live voltage.

Breadboards, when you want them

Add a breadboard from the palette's Boards section and parts snap to its holes. The five holes of each short column (rows a–e, f–j) are connected strips; the long +/− rails run the full width. Parts anchored on a board connect through the strips exactly like the real thing: no wire needed between two pins in one column.

The editing you expect