Does anyone know of any good free software for designing simple electrical diagrams?
If you mean schematics and boards, a lot of people here use the free / light version of Eagle:
http://www.cadsoftusa.com/downloads/freeware/?language=en
Good luck!
Keep in mind that "good" and "free" don't always work together.
KiCad is open source. The free version of Eagle is limited to 2 layers and 100mm x 80mm boards.
expresspcb.com is really handy for drawing up simple things for discussions.
Eagle from cadsoft for designing boards.
I use both, depending on what I am doing.
upverter.com is nice if you want to draw a schematic and share it, but don't want to install anything.
CrossRoads:
expresspcb.com is really handy for drawing up simple things for discussions.Eagle from cadsoft for designing boards.
I use both, depending on what I am doing.
x2 on express pcb. fairly intuitive and easy to make new components. not professional grade but for free software it very nice.
Easy to make nice boards with expresspcb too.
Here are boards I made with epxresspcb (before I finally gave in & learned how to use eagle & wade thru all the libraries to find parts).