All posts on December, 2009
Posted on 28 Dec 2009

Kicad is an open source (GPL) software for the creation of electronic schematic diagrams and printed circuit board artwork. Designed and written by Jean-Pierre Charras, a researcher at LIS (Laboratoire des Images et des Signaux) and a teacher in IUT de Saint Martin d’H?res.(France), in the field of electrical engineering and image processing. Kicad is a set of four softwares and a project manager: [more]
Posted on 27 Dec 2009

If you are looking for high current stepper motor driver here is a nice project you can build yourself.It is designed for Unipolar Stepper Motor that able to handle up to 20A. Here are some features:
- Handles a maximum of 20A
- Handles a maximum of 100V
- Shuts down on overtemperature
- Half-step and full-step
[more]
Posted on 23 Dec 2009

Make your own circuit boards.You can make printed circuit boards like this one at home for a modest expense. Invaluable to experimenters and homebrewers.[more]
Posted on 16 Dec 2009

This multiplexer allows up to 4 devices to be connected to one single RS232 port. Via stacked multiplexers, even an arbitrary number of devices can be controlled with one single port. An example would be connecting multiple stepper-motor controllers to a single RS232 port. The simultaneous data reception mechanism allows a simultaneous movement of all motors.[more]
Posted on 16 Dec 2009

This application note demonstrates simple hardware and software techniques for driving and controlling 3 common four-coil stepper motors by one Stamp II board. The below text / work is a modified version of Parallax, Inc. single axis Stamp I driver. The program is adjusted to run 3 motors simultaneously on a Stamp II board. The board as been tested succesfully with stepper motors from RS.[more]