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Re: MIT's crickets

For any good PIC programmer with a little time on their hands, these
shouldn't be hard to clone.  You'd need to add a few parts to that base
schematic (Low dropout voltage regulator, and I'd do a better reset
circuit than a simple resistor to +5V off MClr, myself <G>

Expect to spend some serious time writing down the exact list of what
you want the Cricket to DO - computers are the fastest morons in the
world, we humans have to do all the "figuring out what we want it to
do", PICs are dumber than the average computer <G>

There are TONS of links on PIC programming off
http://www.new-elect.com/, http://www.dontronics.com/,
http://www.piclist.com/, http://www.microchip.com/, and so on.  The list
folks can tell you how to make your own programmer (If you need a chip
burned, just send me a blank chip and an SASE, or PayPal me some money
if I have the chip already - Most simple programmers use a 16F84 as it's
easy to program with almost no hardware and is self-timing unlike many
PICs.)

If you look you can find several freeware PIC C compilers out there for
the 'F84, there also are several other good interpretive languages (JAL
for one) out there.

If you need help, Nathalie, just ask;  I help admin the PICList, if you
join that through this command:
mailto:?body=SUBSCRIBE%20PICLIST

See
http://www.piclist.com/techref/default.asp?from=/techref/piclist/&url=index.htm#howtosendcommands
for lots of other info about the list <G>

And the PICList folks will help design motor drivers, though it's best
if you look through the archives first as otherwise you may get reminded
to look through the archives <G>

  Mark

Tung-Yep, Philip wrote:
> Found this (
> http://fredm.www.media.mit.edu/people/fredm/projects/cricket/techtalk/mincri
> ck.html ) which seems to be the interpretative core of a Cricket sans s/w
> and motor drivers etc.
> 
> Philip
> 
> > -----Original Message-----
> > From: Tung-Yep, Philip [SMTP:]
> > Sent: Friday, September 01, 2000 3:00 PM
> > To:   'Nat Morgan'
> > Cc:   
> > Subject:      RE: MIT's crickets
> >
> > Natalie,
> >
> > http://lcs.www.media.mit.edu/people/fredm/projects/cricket/passwd.html
> >
> > Might explain why the schematics are no longer available.  Sad that the
> > Media Lab has followed this path when commercialising its research.
> >
> > Philip
> >
> > > -----Original Message-----
> > > From:       Nat Morgan [SMTP:]
> > > Sent:       Friday, September 01, 2000 2:11 PM
> > > To: 
> > > Subject:    MIT's crickets
> > >
> > > Hi all!
> > >   I want to build one of MIT's programmable bricks, or crickets. I know
> > > that
> > > there used to be some schematics on the web, but I can't seem to find
> > them
> > > anymore. Does anyone know where they are?
> > >
> > > Thanks,
> > > Natalie

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