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Circuit Diagram (Diagram)

Drag and drop components, wire connections, Auto-Connect modules, and handle warnings on the canvas.

Component Properties, Wire Properties, and the Connection List

Viewing and editing component properties

Select (click) a node on the canvas, and the right panel switches to the "Properties" tab, showing:

  • Component Name — an input field to change the display name.
  • Model/variant — the original catalog name + type label + scope label "Shared Library"/"Private Library".
  • Pin mapping — 4 arrow buttons (Top/Left/Right/Bottom) to choose which side the pins are displayed on, plus a ⟳ button to reset to defaults.
  • Power — the operating voltage (if declared in the catalog), or "No information".
  • Position — the node's current X/Y coordinates.
  • Appearance — the illustration image and component category.
  • Metadata — other technical information from the catalog.
  • Danger zone — a "Delete Component" button (removes the node plus every wire connected to it).

Viewing and editing wire properties

Select (click) a wire on the canvas, and the Properties panel shows:

  • Source pin / Target pin — the component name and pin at each end of the wire.
  • Signal Type — a dropdown: Generic, Power (VCC/5V), Ground, I2C SDA, I2C SCL, Digital Signal, UART, SPI.
  • Wire Color — a color picker.
  • Thickness — a few preset levels.
  • Route style — straight/step/smoothstep/simplebezier/bezier.
  • Label — an input field for the label shown on the wire (leave blank if you don't want one shown).
  • Validation status — a label of "Valid" or "Has Warning".
  • A "Delete Connection" button to delete this wire.

Viewing a component's connection list (the "Connections" tab)

  1. Select a node on the canvas.
  2. In the right panel, click the "Connections (N)" tab.

Result: a list of every wire to/from that component, each row in the form <pin on this node> → <name of the other node> · <pin on the other node>. Click a row to jump to the "Properties" tab and see the details of that exact wire. If no node is selected, the tab shows "Select a component to view its connection list."; if the component has no wires yet, it shows "This component has no connections yet."

Example

Select the DHT22 node after Auto Wire has finished connecting it, click the "Connections (3)" tab — you immediately see 3 rows: VCC → ESP32 DevKitC · 3V3, GND → ESP32 DevKitC · GND, DATA → ESP32 DevKitC · GPIO4 — a quick way to confirm without having to trace each wire on the canvas again.