[Robotgroup] Parts donation

[Paul Atkinson]

There is an RS-232 based stepper project here. It could be used for lots of
other things by leaving off the FETs and power resistors.
http://cq.cx/pics/next-milling-machine-new-controller.jpg
I believe the Eagle file is readily available for it.

Paul

On 6/5/07, Clendon Gibson <bsandyman at yahoo.com> wrote:
>
> Perhaps it would be a good idea to find a PCB design that would be a
> starter board for the PICs. This would give us a 'smooth' transition from
> the art of PCB photo etch to the art of PIC applications.
>
> ----- Original Message ----
> From: Paul Atkinson <pmatkinson at gmail.com>
> To: The Robot Group Mailing List <robotgroup at puremagic.com>
> Sent: Tuesday, June 5, 2007 11:04:28 AM
> Subject: Re: [Robotgroup] Parts donation
>
> Cool, perhaps we can combine the survey results with some donated parts,
> and
> er... make something. How about a PIC based class or special interest
> group
> (SIG) after we get done with Robo-fest, Marvin's field trip, PCB class,
> etc
>
> Paul
>
> On 6/5/07, Gray Mack <gray_mack at yahoo.com> wrote:
> >
> > Nice, these are around $8 a piece.
> > I think I saw 5 people interested in PIC programming on the survey.
> > I have several '877s in my stock at all times. Pic16 series are easiest
> > programmed in assembly (you really need a pic18 if you want to do ansi C
> > work) but they are great for timing critical applications like led
> driving,
> > analog input monitoring, servo controllers, motor driving.
> >
> > For example you could write a program for serial to stepper motor driver
> > where you send it X,Y,Z vectors from a PC and it handles the step timing
> (a
> > common problem when driving stepper motors from a PC).
> > Just getting the ideas flowing.
> >
> > -Gray
> >
> >
> > ----- Original Message ----
> > From: Mark Hinkle <mhinkle at lycos.com>
> > To: The Robot Group Mailing List <robotgroup at puremagic.com>
> > Sent: Monday, June 4, 2007 5:56:16 PM
> > Subject: [Robotgroup] Parts donation
> >
> >
> > I have had a windfall here at work. Some parts were being surplussed
> >    and I would up with four tubes of microcontrollers. I have 20
> >    PIC16F877 and 25 PIC16F876. I plan on donating five each to TRG.
> >    The '877s are 40 pin DIPs and the 876' are 28 pin SOIC.
> >    If I get REALLY crazy, I'll toss in a couple of my MC68HC11F1 (in 68
> >    pin PLCC) that I have had sitting around for years..
> >    Where do I send them?
> >    Cheers,
> >    Mark (aka Robomarkov)
> >    ---------------------------------------------------------
> >    http://robomarkov.livejournal.com
> >    ---------------------------------------------------------
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