I am quite curious as to how they control the little mirrors they sweep
the beam with etc, as this seems not to be well-documented - I'd be
interested to hear how you go.

> ----------
> From:         Tim Kerby[SMTP:tim.kerby@UKONLINE.CO.UK]
> Reply To:     pic microcontroller discussion list
> Sent:         Friday, December 12, 1997 8:40 AM
> To:   PICLIST@MITVMA.MIT.EDU
> Subject:      Re: Servo Laser Control
>
> Hi
> I should be able to sneak in lots of extra time at home!  Anyway, it
> is
> only a demo of computer control I am producing.  I'm not intending to
> do
> super high quality light shows with the stuff!  Anyway, I will publish
> full
> details on my web site (due to be completely redone over the xmas
> break)
> along with my report.  For a 20th of the total exam marks it isn't
> much but
> I should be able to produce something decent.  Most of the report will
> be
> taken up with analysis of how this is done professionally with only a
> small
> portion on the demo (which will take most of my time!).
>
> As for a career in embedded systems, I am seriously considering it.  I
> have
> been programming the PIC for over two years now and I know 6502 really
> well
> (it is still in the school course work in a lot of detail).  I can
> understand 68HC11 but I have no programming tools for it so that has
> gone
> by the board.  My choice of career would be robotics, specialising in
> artificial intelligence, which would combine all the things I love.
>
>
> Tim Kerby
>
>
> At 09:20 11/12/97 +1300, you wrote:
> >What cruel teachers you have. 20 hours is enough to do some
> preliminary
> >research. In any event real servo systems have overshoot and damping
> >issues which you need to consider. Start with the application note on
> >Microchip's page which shows how to build a servo-controlled DC motor
> >system that accepts commands much like yours. Note that it was built
> >around a 17C42 which has hardware PWM.
> >
> >If you get it done in 20 hours, consider a career in embedded
> systems.
> >You are clearly a genius and will dominate the field. Best of luck
> <g>
> >
>
>
>
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