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[DPRG] Getting Into PICs

Subject: [DPRG] Getting Into PICs
From: The Johnson's sja505 at swbell.net
Date: Thu Nov 15 08:17:04 CST 2001

For those of you considering starting with the PIC line.  Consider the
16F627 (or 28).  It is an 18 pin package with a possible 16 I/O lines
(including some Analog).  It has a built in 4 Mhz oscillator.  So for $3.75
(Digikey) a +5 V source and a programmer you are in business.

----- Original Message -----
>From: "Martin Meier" <puppy_dog500 at yahoo.com>
To: "Patrick Innes" <kc5ugq at yahoo.com>; <DPRGlist at dprg.org>
Sent: Wednesday, November 14, 2001 9:44 PM
Subject: Re: [DPRG] Getting Into PICs


> Hi Patrick:
>
> I'm in the same situation you are with PICs. Sure they
> are less expensive and more versitle than the good
> 'ole BASIC stamps, but where are ya supposed to begin?
>
> For starters, the June 2001 issue of "Nuts & Volts"
> had a good starters article, that had plans for a
> simple flash programmer.
>
> The one I've been working with is the "PIC 16F84".
> This seems to be a widely supported (by both free
> software programmers and compilers) model. The
> programmer I use is came in kit form from Tanner.
> Although the software to drive it came for free from
> the internet. The only downside, is that I dont think
> the 16F84 series supports serial programming. In other
> words, I have to remove it from the circuit, and plug
> it into the programmer's socket.
>
> Right now, I'm using a BASIC compiler that also came
> from Tanner. It was set up to mirror as much of the
> BASIC Stamps functionality as possible. It works well
> enough, but was not free.
>
> I hope this helps some
> -Martin-
>
> --- Patrick Innes <kc5ugq at yahoo.com> wrote:
> > Hi there!
> >
> > This may qualify as a "Frequently-Asked Question",
> > but...
> >
> > Recently, I've been working out the planned details
> > of
> > a 'bot I plan to build.  In order to reduce the load
> > on the main processor (planning on a Stamp of one
> > flavor or another), I would like to use a
> > multi-controller sort of architecture.  The plan is
> > to
> > use a number of smaller "outboard" processors to
> > handle things like running sensors, positioning
> > servos, returning formatted data about what the
> > sensors see, etc.
> >
> > My reading and research has pointed me in the
> > direction of PICs.  From what I've seen, they're
> > versatile, reprogrammable, fast, and (most
> > importantly) cheap.  I also understand that there
> > are
> > software packages out there that allow you to
> > program
> > them with a modified form of BASIC, which is another
> > plus for me, as my C is shaky, and my assembly
> > nonexistant.
> >
> > At this point, I've pretty much figured out that
> > PICs
> > are a good way to approach the problem, but I'm not
> > really sure about the best way to get started with
> > them.  I've seen several books on the market, each
> > with glowing reviews claiming that they are "the
> > single best reference out there".  Same goes for
> > various programmer units on the market, from $15
> > kits
> > to $500 units.
> >
> > As cash is sort of an issue, I'd rather get some
> > advice before dumping a lot of money into something
> > that may turn out to be an expensive paperweight --
> > but I also don't want to get stuck with something
> > that
> > was cheap but doesn't work well.  Something in the
> > "$200 or less" range would probably be a workable
> > option for me.
> >
> > I know I'll probably get lots of conflicting
> > answers,
> > but any help you can give me will help point me in
> > the
> > right direction.
> >
> > Thanks!
> >
> > -- Patrick
> >    KC5UGQ
> >    Frederick, MD
> >
> >
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>
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