KiCad

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KiCad
Kicad logo new.png
KiCad Pcbnew OpenGL.png
KiCad Layout Editor
Original author(s) Jean-Pierre Charras
Developer(s) KiCad developers[1]
Initial release 1992[2]
Stable release 4.0.1[3] / December 12, 2015; 9 years ago (2015-12-12)[3]
Written in C++[4]
Operating system FreeBSD, Linux, Microsoft Windows, Mac OS X
Available in Multilingual (8)
Type EDA
License GNU GPL v2, GNU LGPL v2.1[1]
Website http://www.kicad-pcb.org
KiCad Eeschema for Schematic capture.
KiCad Pcbnew for layout design.
KiCad 3D Viewer showing both VRML and IDF features on a demo board.
KiCad 3D Viewer

KiCad is a free software suite for electronic design automation (EDA). It facilitates the design of schematics for electronic circuits and their conversion to PCB designs. KiCad was originally developed by Jean-Pierre Charras, and features an integrated environment for schematic capture and PCB layout design. Tools exist within the package to create a bill of materials, artwork, Gerber files, and 3D views of the PCB and its components.

History

KiCad was created in 1992 by Jean-Pierre Charras while working at IUT de Saint Martin d'Hères.[5] Since then KiCad has gained a number of both volunteer and paid contributors. Notably in 2013 the CERN BE-CO-HT section started contributing resources towards KiCad to help foster open hardware development by helping improve KiCad to be on par with commercial EDA tools.

KiCad adopted a point release versioning scheme in December of 2015 starting with KiCad 4.0.0. This was the first release featuring the more advanced tools implemented by CERN developers. CERN hopes to contribute further to the development of KiCad by hiring a developer through donations. Contributions may be made through the links on KiCad's website.

Parts

The KiCad suite has five main parts:

  • KiCad - the project manager.
  • Eeschema - the schematic capture editor.
  • Pcbnew - the PCB layout program. It also has a 3D view.
  • GerbView - the Gerber viewer.
  • Bitmap2Component - tool to convert images to footprints for PCB artwork.

Features

KiCad uses an integrated environment for all of the stages of the design process: Schematic capture, PCB layout, Gerber file generation/visualization, and library editing.

KiCad is a cross-platform program, written in C++ with wxWidgets to run on FreeBSD, Linux, Microsoft Windows and Mac OS X. Many component libraries are available, and users can add custom components. The custom components can be available on a per-project basis, or installed for use in any project. There are also tools to help with importing components from other EDA applications, for instance EAGLE. Configuration files are in well documented plain text, which helps with interfacing version control systems, as well as with automated component generation scripts.

Multiple languages are supported, such as English, Catalan, Czech, German, Greek, Spanish, Finnish, French, Hungarian, Italian, Japanese, Korean, Dutch, Polish, Portuguese, Russian, Slovene, Swedish, and Chinese.

Eeschema

Eeschema has features including hierarchical schematic sheets, custom symbol creation, and an ERC (electrical rules check). Schematic symbols in Eeschema are very loosely coupled to footprints in Pcbnew to encourage reuse of footprints and symbols (e.g. a single 0805 footprint can be used for capacitors, resistors, inductors, etc).

Pcbnew

Internally Pcbnew supports up to 32 copper layers and 32 technical layers. Dimensions are stored with nanometer precision in signed 32 bit integers making the theoretical maximum PCB dimension 2^31 nm or approximately 2.14 meters.

Currently Pcbnew is being heavily refactored including getting a new rendering engine (called the graphics abstraction layer or GAL) with OpenGL and Cairo back ends. Pcbnew is also getting a new tool framework to more easily allow developers to add tools without having to deal with supporting multiple renderers. Due to this some tools are only available on the legacy XOR based renderer and some are only available with the GAL renderers.

KiCad has a built-in autorouter for basic, single connections. Alternatively, the open source (but discontinued) Java-based FreeRouting can be used to externally autoroute boards.

A DRC (design rules check) is available to check for common logical errors.

The 3D PCB viewing function is based on VRML models and the board model can be exported for CAD integration.

Some recent additions follow.

An interactive router which features the ability to walk around existing traces in the way, or shove existing traces into a different position while maintaining their connectivity.

High speed PCB routing tools such as track length matching and differential pair support.

Python scripting support.

See also

References

  1. ↑ https://launchpad.net/~kicad-developers
  2. ↑ JP Charras said me that the first drafts were made in 1992 for a DOS version, but not diffused :-) , (kicad-users) Re: About KiCad first release By Remy, 08 Jul 2007
  3. ↑ 3.0 3.1 Lua error in package.lua at line 80: module 'strict' not found.
  4. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  5. ↑ Lua error in package.lua at line 80: module 'strict' not found.

External links

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