software for drawing schematics

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#1
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hi
is there a free or low cost software tool available that i can use for drawing a schematic of my avr based projects? This image can be saved as .png for example for inclusion on a website.
thanks
richard

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TinyCAD?

Leon

Leon Heller G1HSM

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CADsoft Eagle has a freeware version limited in size of the project. If you use Linux, there is Kicad and geda, which are free and unlimited. PCB123 is also free, but if you want to produce a PCB you are stuck with their service only.

I like cats, too. Let's exchange recipes.

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I like cats, too. Let's exchange recipes.

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Expresspcb has a nice free schematic program along with their board layout program. Easy to use, and they turn out pretty nice boards as well. The cad files are a proprietary format, but ExpressPCB can supply you with Gerbers if you want them.

Tom Pappano
Tulsa, Oklahoma

Last Edited: Sun. Jan 18, 2009 - 06:49 PM
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Try FreePCB at it is easy and lots of support.http://www.freepcb.com/

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LTSPICE is a good one to checkout if you just want to draw schematics (no pcb).

oddbudman

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This never ceases to fascinate me. Every time anyone asks for a schematic or PCB program, they all get named. Maybe it is time for a sticky.

My experience is that they are all different and all are hard to use, so I'd suggest picking something free and be prepared for a lot of frustrating study. I use Eagle.

Smiley

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Quote:
My experience is that they are all different and all are hard to use

The ExpressPCB stuff *really* is easy, though. Worth a look if you don't have the time to fiddle around 8-)

Tom Pappano
Tulsa, Oklahoma

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I think things start getting complicated because all these 'schematic capture' apps need to interface with a simulator.

How about something just for drawing, that is better than freehand sketching? If I want to post a small circuit diagram in answer to a question, I don't want to go through the rigorous (tedious) procedure for specifying each part. :P

If you think education is expensive, try ignorance.

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Quote:

This never ceases to fascinate me. Every time anyone asks for a schematic or PCB program, they all get named. Maybe it is time for a sticky.

Totally agree. This for example:

https://www.avrfreaks.net/index.p...

Or maybe, like the freeware thread in OT, a new thread should be started where each program is just name/nominated once with the nominee giving the arguments in its favour? Maybe a poll even (as long as the list can be edited from time to time to add new additions as they occur)?

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Very good idea indeed :!:

I will give it a start, with a new thread. And will collect information from earlier postings, to get things going.

Nard

Edit: started here:
https://www.avrfreaks.net/index.php?name=PNphpBB2&file=viewtopic&t=73754

A GIF is worth a thousend words   They are called Rosa, Sylvia, Tessa and Tina, You can find them https://www.linuxmint.com/

Dragon broken ? http://aplomb.nl/TechStuff/Dragon/Dragon.html for how-to-fix tips

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PCB Artist provided by Advanced Circuits is a free schematic capture with layout. Not sure it will do a .png.

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> I will give it a start, with a new thread.

Thanks for starting that thread, Nard! (And you even already
included my pet program. ;-)

Jörg Wunsch

Please don't send me PMs, use email if you want to approach me personally.

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jaydhall wrote:
PCB Artist provided by Advanced Circuits is a free schematic capture with layout. Not sure it will do a .png.

Not a problem. Dozens of freeware proggies to do that conversion. My favourite: FastStone http://www.faststone.org/

Any suggestions for my requirement? Something just for drawing - as an upgrade from freehand sketching. Perhaps with a toolbar showing icons for common components. PCB Artist makes me select a library from a list, then select a device from a list. Repeat for next component. :(

If you think education is expensive, try ignorance.

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Quote:
Any suggestions for my requirement? Something just for drawing - as an upgrade from freehand sketching.

Have a look at the new Sticky at the top of this forum ;)
Like you, I used to freehand sketch, take a picture and post it. But too many times my handwriting/sketching skills lead to questions. Nowadays I use ExpressSch. When you make a standard schematic with your favorite components in a row, it's just copy and paste.

Nard

A GIF is worth a thousend words   They are called Rosa, Sylvia, Tessa and Tina, You can find them https://www.linuxmint.com/

Dragon broken ? http://aplomb.nl/TechStuff/Dragon/Dragon.html for how-to-fix tips

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Good trick, Nard. Thanks. :D Just make a pseudo schematic with all my favourite components arranged in neat rows, then copy/paste what I need from there.

I suppose I can do that in any software?

If you think education is expensive, try ignorance.

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Quote:
I suppose I can do that in any software?
I guess so. But I tried several flavours, and ExpressSch prooved (or is it "proved" ? ) to be the right one for me. It's all a matter of taste ;)

Nard

A GIF is worth a thousend words   They are called Rosa, Sylvia, Tessa and Tina, You can find them https://www.linuxmint.com/

Dragon broken ? http://aplomb.nl/TechStuff/Dragon/Dragon.html for how-to-fix tips