Fritzing : An Awesome Tool For Sketching Electronics Projects
Using Fritzing you can create circuits & component diagrams for fast & rapid prototyping.
There are variety of boards are included in the database of the Fritzing from Arduino to Parallax to Sparkfun to Snootpad & Lilypad to all Linear components & even Raspberry Pi, which you can use to configure the connection in any of the development boards.
Just simply drag & drop the components to create the connection.
Here are some images of this awesome opensource application :

Not only the protoype using the breadboard but also PCB & schematics can be created of your connection using Fritzing if you're planning to make the permanent project.
It is very User friendly with attractive GUI & Opensource, hence free of cost. A must try app for Electronics Engineers & hobbyists.
To Download Fritzing in Linux, Mac OS X & Windows : <a href="https://fritzing.org/download/" target="_blank" rel="nofollow noopener noreferrer">Fritzing</a>

