| Schematics and layout editor. I can give no better description but point to EAGLE at http://www.cadsoft.de which is by far the best CAD software I have tried so far. Another exciting rolemodel would be gEDA at www.geda.org. Bottom line: draw a schematic with predefined components and switch to the layout editor and place the components with airwires and route the tracks by the aid of the airwires |