El Thu, Aug 14, 2003 at 04:31:56PM +0200, Wouter van Ooijen escribio:
> >
> > You could probably replace various of the PIC's with logic driven by
> > the PC
>
> But the PICs are spread over an area of maybe 100 x 100 meters, with a ~
> 500 m network connecting them all! I'm not gona do that with parallel
> wires, shift registers or dallas one-wire (and the customer wants CAN -
> looks nice on the sales flyer). So there will be a PIC at each node
> anyway, then why not use for what it is good at?

I agree, and in fact this is how I normally do my projects (PIC's spread
near the hardware, and a central Linux PC comunicating with all).

In fact, one of the advantages of using PIC's (or other microcontroller)
in the "remote" places is that in case of comunication failure, a
controlled condition can be ensured (ie., stop movement, de-energizing
areas, etc.).

    Daniel.

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