an open source PCB editor for Microsoft Windows, released under the GNU General Public License.

how the parts might look in the Schematic Constructor 1.1

Free PCB schematic capture

Or Multiple part:

Circuit Design Software

How to create a complex part? (since v1.1)

Sometimes in multi-channel diagrams it is convenient to create complex parts to duplicate repeating blocks. A complex part is a small electrical diagram inside the part of the Schematic Constructor. In general terms, this is created like this: On a separate page that is not included in any netlist, draw the part with the leads inward (and not outward, as in a normal part), set the name of the part (this is the RefDes attribute), for example CHANNEL.

schematic design example

Place a circuit diagram of ordinary parts inside this part and connect it to the leads of the part: CHANNEL.

Hierarchical symbol

Schematic Constructor

On the main page where you have the electrical diagram of the project, draw a rectangle. Then, by selecting the side of this rectangle and pressing F1, in the polyline attributes dialog box, select the Outline of complex part script.

Schematic drawing Software

Then, next to the contour line of the complex part, draw a pin polyline in contact with the contour polyline, and in the polyline attributes dialog box, select the Pin of complex part script and enter the appropriate parameters.

Free schematic editor

Draw the rest of the pins and repeat the procedure (pin 2 and pin 3)

Electronic Circuit Design Software

All parts of this channel in the netlist will be named as follows: R1A, R2A (Suffix A will be added)

Reference designator

Now you’re done.