Re: PIC DRO Dreaming

You bring up some interesting topics:

- PIC: I threw this out because it is cheap. Their is a company who makes a
50mip version. Maybe using C or a floating point basic it could be done.
Maybe the Basic Tiger could do the job;

- Display: Their are some cheap parallel and serial displays out on the
market for the hobbiest these days;

- Level of difficulty: Reading the Quad inputs would not be diffucult. Nor
Displaying the results;

- Keypad input and a serial I/O you might also have the option of hooking
this puppy to a PC;

- Skills: I could probably do it.

- Time: I will ask the wife and my 3 month old if I am aloud to spend time
on this. I think their are people on this group who could do a better job
than I. Anyone lurking out their who should reveal themselves? Don't be
afraid to look stupid. I do it all the time.

Sherline has a small DRO out. I am guessing that it uses a cheap 8/16 bit
micro.

Paul Devey

----- Original Message -----
From: D.F.S. <dfs@...>
To: <CAD_CAM_EDM_DRO@onelist.com>
Sent: Monday, March 13, 2000 4:20 PM
Subject: Re: [CAD_CAM_EDM_DRO] PIC DRO Dreaming


> From: "D.F.S." <dfs@...>
>
> >
> > From: "Paul Devey" <paul_devey@...>
> >
> > I like the various PC based DROs. However, I do not have the space to
have a
> > PC and monitor hooked up to each lathe/mill.
> >
> > A PIC based DRO attatched to LEDs/LCDs would be real nice.
> >
> > What options are out their?
> >
> How complicated do you want?
>
> I don't know of anything you could just buy.
>
> Did you just pick the "PIC" name out as a probable
> solution, 'cause all sorts of new products use them,
> or do you have any experience using them?
>
> If the latter, look into the logic required to read a quadrature
> input and deduce a position.
>
> It is not that complex, and would be a good job for a PIC.
>
> The only question I would have is if a given model would be up
> to the math required.
> Not that complicated, but floating point would probably
> be required to give decent results.
>
> So, back to the previous question, if you can program a PIC, it
> may be a rather easy task, if not, you'll have to wait for
> somone else to do it.
>
> Maybe someone ELSE has seen a product.
>
> The easiest thing to do would be to base it on the PC products
> to leverage the experience on the sensor side.
>
> In the end, it has a TTL level input to the PC, you can
> take it from there in the PIC.
>
> Marc
>
>
>
>
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