Resistors is a program to calculate the most suitable E-series resistors for voltage dividers or for generating other values by putting two resistors in parallel. It is especially useful for selecting resistor values for the voltage dividers used in variable voltage regulators. In effect, the voltage in the middle of the divider is known, and you want to achieve a regulated voltage (the top value).
DOLPHIN SLED is a hierarchical schematic entry solution with graphic linking of components, hierarchical configuration of the netlist, and multi-language netlisting (SPICE, Verilog, VHDL-AMS, etc.). Interoperability with other schematic entry tools, particularly the ECS family (including Synario, Cohesion, and Laker-AMS) is ensured for capitalizing on legacy designs and cooperative work. Interoperability is ensured through standard design exchange formats (EDIF2) and scriptability for customization.
Spice+ is a general-purpose circuit simulation program based directly on Spice3f5. Its main purpose is to allow university students and other interested people to simulate their circuits without buying expensive simulation programs or being limited by free trial versions of such software. Since source code is available, students or researchers can use it as a basis for new models and algorithms.
Liquid PCB is a computer aided design application for designing printed circuit boards. Unlike other PCB CAD applications, you are not restricted to straight tracks and 45º angles. Instead, you can freely draw tracks any way you like, and the tracks themselves will move and bend as required to maintain your design rules. Vias and components are also free to move and rotate. The user interface exposes all functions through the multi-directional expanding mouse menu and the keyboard instead of through icons and menus.
UrJTAG aims to create an enhanced, modern tool for communicating over JTAG with flash chips, CPUs, and many more. It takes on the well proven openwince jtag tools code. Future plans include conversion of the code base into a library that can be used with other applications. A flexible remote communication protocol that can be used over almost any type of serial link (including TCP/IP) is currently being defined.
KiCad EDA is software for the creation of electronic schematic diagrams and printed circuit board artwork. It is a set of four programs and a project manager: Eeschema (schematic entry), Pcbnew (a board editor), Gerbview (a Gerber viewer (photoplotter documents)), and Cvpcb (a footprint selector for components used in the circuit design). Kicad is the project manager. It includes a 3D visualization feature.
FerFT is a multi-purpose spectral analyzer based on the successive Fourier transformation method. It features an input signal monitor which can sample input signals through a microphone with various sample rates and show them graphically on the panel. It also lets you calculate power spectra successively along with sampled input signals and show them graphically on the panel. Finally, it provides a filter to modify spectra and regenerate signals from them.