The schematic is the symbolic representation of the thing you want to build. In this case, it will be a simple 555 blinking circuit.
Many beginners ask why this is necessary…can’t they just hook up the wires? A good question actually! The schematic helps to keep things straight, especially as the connections get more and more complex. It might not seem necessary when connecting a single chip like the 555 to a couple of resistors and capacitors…but when it’s 100 or 1000 components? It can become very complicated.
Some of the topics covered in this lesson:
- How to search for components in the included KiCad symbol libraries
- How to connect up the wires between various symbols to represent the signals on physical boards
- How to create a custom symbol when it doesn’t exist in a KiCad library or you need to change something
Click below to view the “topics” for this lesson.