We need a software to do a good electronic design (Schematic and PCB design). A cross-platform and
With this three-part short course we will try to teach you how to make an electronic design at the beginning level.
First, download and install KiCAD software on your computer according to the appropriate operating system.
After downloading and installing KiCAD, run the software. You will see a window as follows.
Click on the Create New Project 
button and then enter the name of your new project and save it.
Or you can create your new project by the following File -> New -> Project.
Your project is now in the main window…
What do the files here mean?
- * .kicad_pcb – PCB design file.
- * .sch – Schematic file.
For more information;