I have used OrCad a fair bit.
I use it for university, it is part of many of my units.
The demo is free and is fully featured but "Limitations are in the size and complexity of the design."
I have not had any trouble with hitting these limits when I have been using the free version.
It has a large collection of libraries.
LTspice is another alternative, similar to the other answers here. It has a small, steep learning curve, but after a few hours you should have no problem to simulate simple circuits.
You can do DC, AC, transient analysis etc.. and offers a library with a good variety of basic components. Below are two screenshots from my installation on OSX, but it shouldn'...
You can use Proteus from Labcenter.
It is commercial software but with evaluation version you can create full schematic and simulate it but you can't save it.
The limitations are that it does not allow you to save, print or design your own microcontroller based designs (you can however write your own software programs to run on the existing sample design ...
SPICE and all its derivatives are "circuit simulators"
There is a list on Wikipedia
And another list also on Wikipedia.
These lists are not 100% complete as at work I use Cadence Spectre
but this package is very much IC-design oriented and also quite expensive.
In your case (free software) I suggest that you try LTspice (still a bit spicey though ;-) ) ...
You could try QCAD, i dont know moch about it but there is library with e-parts available http://www.ribbonsoft.com/en/qcad-add-ons . You can create, modify it... Insertion is similar to drag and drop. If you dont need dwg support and ather features, maybe free communiti version would be enought for you. Proffesionla version for 33 Eur provide some extra ...
What about software-as-a-service offers? With https://www.circuitlab.com/ you can run simulations in your Browser. It is commercial software, subscription-based.
I don't know how well this can scale up. Maybe the web can handle only simple circuits.
LibreOffice includes Base which is a full database management program complete with GUI capabilities and the full HSL relational database. From the blurb:
"LibreOffice Base provides wizards to help users who are new to database design (or just new to the software) to create tables, queries, forms and reports, and it comes supplied with a set of pre-defined ...
PartKeepr is an open source inventory management project based on PHP/MySQL.
See the PartKeepr's demo.
I would suggest reading this thread for more ideas: https://electronics.stackexchange.com/questions/107869/software-for-workshop-electronic-components-stock-management
If your OS is Windows and speak French, you can also have a look at the softwares ...
I found out that Fritzing is actually sufficient for my needs. It's not very convenient, but acceptable.
It's also not very obvious how to do it, so here's a short description of here's how it works:
Delete the default bread board
In the "core parts", find the "basic single-sided stripboard" or the "basic single-sided perfboard" and add it
If you need ...
I'd suggest DraftSight for this, as it's open-source, free and very well supported and documented, and has an install base in the millions.
I'm no coder, I'm a tech writer/illustrator, draughter, graphic designer, 3D modeler and architectural designer, so I approach this from the ...
I think it safe to say this 11 axis application is unlikely to be found anywhere.
But having just completed a similar project in 2 axes, I know the motion control might possibly be done with 4 Arduino Uno's c/w CNC Shield for 12 motor bridge port drivers using 11 stepper motors running off 12Vdc with USB ports. Of course cable limits and window spacing ...
After reading your requirements the first product comes in my mind is Multisim.
It is although a very big and large scale software and i haven't go through each of it's features particularly I've used it in my graduation for designing and simulating electronic circuits.
It is very good product developed by National Instruments and can handle your ...