The way I'd go about this is using a microcontroller of some sort. A BASIC STAMP may be the best and easiest if you're just doing this one thing. Alternatively you can use a PIC, in which case my tutorial at http://www.0x09.com/Marlboro/physcomp might be useful. Basically the microcontroller would give you an interface between a motor and your computer.
You might be able to do it without a microcontroller, depending on the motor and its interface. You might even be able to just plug it in to a serial port, perhaps via a relay. The serial port uses +/-5V DC, which can be triggered using the [comport] external. You output that to a relay, which triggers the motor on or off. That's entirely speculative, I just pulled it out of my ass, and I've never tried anything like it before.
Cheers, Ian
olsen wrote:
salü probably little off-tropic but as there are some tinkerers around maybe someone could give me a point of departure. I'm trying to figure out controlling a belt conveyer attached to my computer/pd. basically i thought about controlling a motors movement - passing parameters for some estades to turn back and forth. if someone has experience in this direction in his sewing box (f.e. with modules from http://www.ak-modul-bus.de) i appreciate it if he/she could share it. thanks in advance&greets olsen