Build a schematic from scratch

Before you start

• An editable project
• An idea of the circuit: which parts, and which pins connect

Applies to: Resin web app

Follow the steps

1. 1

   Create the schematic

   In the Schematics tab choose New schematic, type a name in Schematic name..., and press Enter. A new tab opens with an empty sheet.

   Schematics > New schematic
   

   Expected result

   A tab with your schematic name is open and empty.

2. 2

   Place the first component

   Press A, or right-click empty canvas and choose Add Component.... Search the library, pick the symbol, and click on the canvas to place it. Press Escape when you are done placing.

   Schematic canvas > A
   

   Expected result

   One symbol is on the sheet and the editor is back in the Select tool.

3. 3

   Set its properties

   Select the symbol and press E. Set Reference (for example R1) and Value (for example 10k). Assign a Footprint here if you already know the package; the part cannot be pushed to a board without one.

   Selected symbol > E
   

   Expected result

   The symbol shows the reference and value you typed.

4. 4

   Place the rest

   Repeat A and E for each remaining part. While a symbol follows the cursor, press Space to rotate it, X to mirror horizontally, and Y to mirror vertically. Press P to place a power port and G to place a ground port.

   Schematic canvas
   

   Expected result

   Every part is placed with a unique reference and a value.

5. 5

   Wire the pins

   Press W for the Wire tool. Click a pin end to start, click at each corner, and click the destination pin to finish; Escape ends an unfinished wire. Wires that cross without a dot are not connected. Press J to add a junction where three or more wires meet.

   Schematic canvas > W
   

   Expected result

   Each planned connection is drawn pin to pin, and branches have a junction dot.

6. 6

   Name the nets

   Press N for a net name and click a wire to label it. Use O for a global label when the net must connect across sheets. Two wires with the same label are the same net even if no wire joins them.

   Schematic canvas > N
   

   Expected result

   Every signal you need to refer to later has a label.

7. 7

   Save and reopen

   Press Ctrl+S (Cmd+S). The save indicator in the tab header shows when the file is saved. Return to the Projects page, open the project again, and confirm the sheet reopens with all parts, wires, and labels.

   Schematic canvas > Ctrl+S
   

   Expected result

   The reopened sheet matches what you drew.

Check your result

• Schematic named
• Every part has a unique reference
• Values set
• Wires end on pins
• Junctions at branches
• Nets labeled
• Saved and reopened

Troubleshooting

Find the symptom, apply the fix, and repeat the affected check.