Re: Simple Parallel Port controller

--- In CAD_CAM_EDM_DRO@y..., "Eric Keller" <keller137@h...> wrote:

>
> > I am looking for some help to use my parallel port to turn off

and on a

> > small relay switch. The device I want to control will shut off
> automatically
> > after 1 cycle but it needs a 1 second ON switch to activate it.

What I am

> > doing is turning a small motor on and it will turn one revolution

and then

> > stop when the cam lobe on the pulley hits the switch lever to

stop it. I

> > need the computer to turn the relay on to start the motor moving.

The

> motor
> > is just a plain motor 12V not a stepper or servo. I will have the

final

> > drive slowed way down with a pulley so the switch cycle will take

3-4

> > seconds. I have seen some simple controller boards for small

servo motors

> > for about $50 but All I need is a Off and ON switch. I would

appreciate

> any
> > help.
> >
> > Thanks
> > Scott
> What you want is called a opm-5 from greyhill or omron. There

would be some

> twiddling with pullup resistors. Hook the motor up to 12 volts on

one side

> and use
> the relay to pull down the other side. Then you just have to learn

how to

> use the
> parallel port to output a signal.
> Eric

Can you send me more info on the opm-5 you are talking about? I am
very basic on the electronics side but good on the mechanical. Do you
have any wiring diagram's that kind of show how it is all hooked up?

Thanks
Scott