Don't use Fritzing
Fritzing has no equal for easily creating graphical images of breadboard circuits. However:
- New parts cannot be created from scratch within Fritzing, Inkscape or another vector design program has to be used.
- Circuits are designed via a 0.1" pin pitch breadboard representation, and the schematic is created from that.
- The schematic is ugly.
- There are no nets or buses in the schematic view. Parts are connected by wires between individual pins. Connections cannot be named.
- It is unlike every other schematic capture application on the planet.