FidoCadJ is a very easy-to-use editor, with a library of electrical symbols and footprints (through hole and SMD). Drawings can be exported in several graphic formats (PDF, EPS, PGF for LaTeX, SVG, PNG, and JPEG). Although very simple and not relying on any netlist concept, FidoCadJ can be considered a basic electronic design automation program. FidoCadJ uses a file format containing only UTF-8 text, which is very compact and suited for copying and pasting with newsgroups and forum messages. This determined its success, as it is quite versatile for simple mechanical drawings as well as for electronics.
fpgatools is a toolchain for programming flexible programmable gate arrays (FPGAs). The only supported chip at this time is the xc6slx9, a cheap (circa $10 U.S.) but powerful 45nm-generation chip with about 2400 LUTs, block ram, and multiply-accumulate devices. The principles of fpgatools are to reach the maximum physical performance of the chip, to provide fast development cycles, to be an independent toolchain which only depends on other Free Software, and to be a lightweight C implementation without a GUI.
μnix is an open source DIY hardware and software project that endeavors to create a complete, usable, computer workstation using only discrete components, IC chips, and 8-bit microcontrollers. The electronic design, including the schematics and PCB layout, is open and usable by anyone. In addition, the necessary firmware for all of the ancillary microcontrollers is provided, including the advanced firmware acting as the Operating System on the main CPU units. The goal is not to try to create a competing product with any of the x86 computers out there, but instead to learn and teach the very low-level information and skills needed to create a complete workstation from scratch, starting from the circuit boards and ending with the multitasking OS. The project is open to anyone that wants to contribute or even just be involved in some way with a project of this scope and innovation.
FidoReadPHP is a PHP class that can dynamically interpret data in the FidoCad/FidoCadJ format and produce an image corresponding to the data. The FidoCad/FidoCadJ format is used to store technical drawings in a compact text format that is very easy to embed in a Usenet post or a forum message.
QSapecNG (Symbolic Analysis Program for Electric Circuits (New Generation)) is a Qt-based program for symbolic analysis of linear analog circuits. It consists of two independent parts, the SapecNG framework engine and the QSapecNG GUI. It was based on SapWin. Users can draw, solve, analyse, and manage analog circuits.
eLua (Embedded Lua) aims to introduce the programming language Lua to the embedded software development world. Lua is the perfect example of a minimal yet fully functional language. The aim of the project is to have a fully functional Lua development environment on a microcontroller (Lua interpreter, modules appropriate for microcontroller environments, and editor) without the need to install a specific toolchain on the PC side.