Stepper motors translate digital switching sequences into motion. They are used in printers, automated machine tools, disk drives, and a variety of other applications requiring precise motions under computer control. Unlike ordinary dc motors, which spin freely when power is applied, steppers require that their power source be continuously pulsed in specific patterns.
3 axis stepper motor driver using a single RS-232 port
Fred Sigernes – Optics Spectroscopy Electronics
“Currently I am hired as Professor in optics and atmospheric research. In addition, I am chief of the Kjell Henriksen Observatory at UNIS.”
The gEDA project has produced and continues working on a full GPL’d suite of Electronic Design Automation tools. These tools are used for electrical circuit design, schematic capture, simulation, prototyping, and production. Currently, the gEDA project offers a mature suite of free software applications for electronics design, including schematic capture, attribute management, bill of materials (BOM) generation, netlisting into over 20 netlist formats, analog and digital simulation, and printed circuit board (PCB) layout.
gEDA Project – Electronic Design Automation tools
The gEDA project was started because of the lack of free EDA tools for UNIX. The tools are being developed mainly on GNU/Linux machines, but considerable effort is being made to make sure that gEDA runs on other UNIX variants. For a complete list of freely available tools please be sure to visit Open Collector.
GEDA Projects External