> -----Original Message-----
> From: Olin Lathrop [mailto:olin_piclist@COGNIVIS.COM]
> Sent: Tuesday, 17 October 2000 10:48
> To: PICLIST@MITVMA.MIT.EDU
> Subject: Re: [PIC]: Project Idea, anyone done it already?
>
>
> > I've thought of what I think would be a good project for a
> pic. I would
> like
> > to have a 8 channel relay board that is controlled through
> a standard
> serial
> > interface.
> >
> > ie. PC->Serial->Pic->8*Relay
> >
> > It would also be nice to have the Pic able to report the
> status of each
> > relay back to the host.
> >
> > Has anyone done a circuit like this already?
>
> Yes, I have.  But before we get too far, is this a commercial
> project (in
> other words a real budget) or a one-off hobby project?
> (Sorry, but I've
> gotten caught on this before, especially on this PIC list.
> After spending
> time with several emails back and forth sending descriptions,
> specs, and the
> like, I finally discover that the other person is expecting
> code for free
> and never had an intention to pay for anything).

No, strictly a personal hobby project. I'm a software developer by trade so
the code is the easy part as far as I'm concerned.

Surely someone can point me to freely available source for doing the comms
part? (or is that overly optomistic)

> Not quite a year ago we created a custom system for
> sequencing power to a
> piece of industrial equipment that has lots of individual DC
> supplies and
> other things that need to be separately switched.  We
> deliberately kept it
> general so that it would be applicable in a variety of
> applications.  It has
> switched AC outputs, digital outputs, digital inputs, and configurable
> analog window detection inputs for sensing of DC power supply
> outputs.  It
> can be controlled from a host via a serial line, but the sequence of
> operations can also be programmed into the unit and saved in
> EEPROM.  The
> unit also reports current status, operations, and failures
> back to the host.

Sounds pretty cool but more than I need.
Do you sell these? How much?

Thanks for the reply.
CR

> Let me know if you want more detail.
>
>
> *****************************************************************
> Olin Lathrop, embedded systems consultant in Devens Massachusetts
> (978) 772-3129, olin@cognivis.com, http://www.cognivis.com
>
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