Meep is a finite-difference time-domain (FDTD) simulation software package developed at MIT to model electromagnetic systems.

Inspekt3d is a lightweight 3D viewer for Libfive written in Guile Scheme. The viewer can be used interactively with a REPL (for example Geiser in Emacs).

This package provides a pipeflow calculation tool that complements pandapower in the simulation of multi energy grids.

LibreCAD is a 2D Computer-aided design (CAD) application for creating plans and designs.

ADMS is a code generator that converts electrical compact device models specified in high-level description language into ready-to-compile C code for the API of spice simulators. Based on transformations specified in XML language, ADMS transforms Verilog-AMS code into other target languages.

pandapower is an easy to use network calculation program aimed to automate the analysis and optimization of power systems. It uses the data analysis library pandas and is compatible with the commonly used MATPOWER / PYPOWER case format. pandapower allows using different solvers including an improved Newton-Raphson power flow implementation, all PYPOWER solvers, the C++ library solvers for fast steady-state distribution power system analysis of PowerGridModel, the Newton-Raphson power flow solvers in the C++ library lightsim2grid, and the PowerModels.jl library.

PythonSCAD is a programmatic 3D modeling application. It allows you to turn simple code into 3D models suitable for 3D printing. It is a fork of OpenSCAD which not only adds support for using Python as a native language, but also adds new features and improves existing ones.

Fasthenry is an inductance extraction program based on a multipole-accelerated algorithm.

Manifold is a geometry library dedicated to creating and operating on manifold triangle meshes. A manifold mesh is a mesh that represents a solid object, and so is very important in manufacturing, CAD, structural analysis, etc.. Manifold also supports arbitrary vertex properties and enables mapping of materials for rendering use-cases.

scad-dbus allows controlling OpenSCAD from within Emacs via D-Bus without having to switch programs or reach for the mouse.

This is a minimalist terminal program like minicom or cu. The only thing it does is creating a bidirectional connection between stdin/stdout and a terminal device (e.g. serial line). It can also set serial line baudrate, manipulate DTR/RTS modem lines, send break and throttle transmission speed.

esptool.py is a Python-based utility to communicate with the ROM bootloader in Espressif ESP8266 & ESP32 series chips.

LibSavitar is a C++ implementation of 3mf loading with SIP python bindings. It belongs to the Cura project from Ultimaker.

XFOIL is an interactive program for the design and analysis of subsonic isolated airfoils. It consists of a collection of menu-driven routines which perform various useful functions such as:

• Viscous (or inviscid) analysis of an existing airfoil

• Airfoil design and redesign by interactive modification of surface speed distributions

• Airfoil redesign by interactive modification of geometric parameters

• Blending of airfoils

• Writing and reading of airfoil coordinates and polar save files

• Plotting of geometry, pressure distributions, and multiple polars

PyVISA-py is a backend for PyVISA that implements most of the methods for Message Based communication (Serial/USB/GPIB/Ethernet) using Python and some well developed, easy to deploy and cross platform libraries.

This package provides a full Python driver for the Keithley 2600B series of source measurement units. This driver provides access to base commands and higher level functions such as IV measurements, transfer and output curves, etc. Base commands replicate the functionality and syntax from the Keithley's internal TSP Lua functions.

minicom is a serial terminal emulator.

Rizin is a reverse engineering framework and a set of small command-line utilities, providing a complete binary analysis experience with features like disassembler, hexadecimal editor, emulation, binary inspection, debugger, and more.

Area is a CAM-related software for pocketing operation.

This project provides library and associated python-module to compute pocket operations.

This package provides a C++ library for handling of multiple co-processes in cadabra.

LinSmith is a Smith Charting program, mainly designed for educational use. As such, there is an emphasis on capabilities that improve the 'showing the effect of'-style of operation.

Libfive is a tool for programmatic computer-aided design (CAD). In libfive, solid models are defined as Scheme or Python scripts, and there are no opaque function calls into the geometry kernel: everything is visible to the user. Even fundamental, primitive shapes are represented as code in the user-level language.

PrusaSlicer takes 3D models (STL, OBJ, AMF) and converts them into G-code instructions for FFF printers or PNG layers for mSLA 3D printers. It is compatible with any modern printer based on the RepRap toolchain, including all those based on the Marlin, Prusa, Sprinter and Repetier firmware. It also works with Mach3, LinuxCNC and Machinekit controllers.

cutecom is a graphical serial terminal, like minicom. It is aimed mainly at hardware developers or other people who need a terminal to talk to their devices.