The properties panel
What you can change about a selected part or wire, and where the values go.
Opening it
Select a part or a wire on the canvas and the panel opens beside it. It is a popover, not a mode: click elsewhere, or press its close button, and it goes. Selecting something else swaps what is in it.
A part
At the top, the part's name. Under it, one row per property the part declares in the catalog, so what you see is decided by the part and not by a list kept somewhere in the editor.
That means, for example:
- a resistor has a value in ohms;
- a capacitor has a value in microfarads;
- an LED has a color;
- a clock has a frequency in hertz;
- a pushbutton has a bounce setting, because a real button does not make one clean edge.
The values are part of the project. They are saved with it, exported with it and travel over a share link.
At the foot are Rotate and Delete, side by side, with their keys shown
as quiet hints rather than as part of the label: R and Del.
A board
A board gets one extra section: Firmware. It lists the prebuilt example images for that board family, plus an option to upload an ELF of your own. The list is filtered by the board's own program format, so an AVR image is never offered to a RISC-V board.
Choosing a built-in example is how you run something without writing any code. Note that an uploaded ELF was not built from the files in the editor, so pressing Run will run the image rather than compiling the sketch. See the code editor and compiling.
A wire
A wire has two things: a color, from the same eight swatches that pop up when a wire is drawn, and a label.
The label names the net, not the wire. Type SDA on one jumper and every wire
on that net shows SDA. Press Enter or move the focus away to commit it, and
clear the field to take the name off. There is more in
wiring.
A sticky note
A note gets its own panel: five colors, three sizes, Edit text and Delete. There is more in sticky notes.
Locking
Where you own what is open, the panel also carries Lock (or Unlock on something already held), which holds the selection where it is for anybody else who opens the circuit. A reader who may not take the lock off instead sees the fields switched off over one line saying why. See assignments and submissions.
Several things at once
With more than one part selected, Rotate and Delete act on all of them. Rotate turns each selected part 90 degrees about its own center.