Subject:
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Re: optical mouse chips as vision sensors?
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Newsgroups:
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lugnet.robotics
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Date:
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Mon, 1 Jul 2002 20:44:17 GMT
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Viewed:
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592 times
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This whole thread just caused an interesting thought to pop into my head,
although I suspect it would only apply to cases where LegOS were being used.
If the mouse serial port output (transmit line) were to be connected to a
LMC555 (running at 38kHz) driving a IR LED, then the 1200 bps serial data
from the mouse might be used directly by the RCX without tieing up a sensor
port.
(This always presumes you have the option in LegOS to adjust the baud rate
down to 1200 and that the mouse will run as a serial mouse.)
This way, you would indeed get to see the mouse clicks too.
JB
In lugnet.robotics, Mike Payson <mpayson@dawgdayz.com> writes:
> One other interesting thing about this idea-- If it works, not only will
> you get the optical sensor, but you can probably get up to 5 touch sensors
> and a rotation sensor at the same time. I'm not sure how the signal is
> sent, but will the RCX be able to differentiate between these on a single
> port? Or, could you hook it up to two ports & set them up to work together?
>
> At 07:04 PM 6/30/02 +0000, you wrote:
> > And then check out the language he used to hack into the
> > mouse data stream....yep it's FORTH. Not surprising as
> > New Micros Inc was one of the first vendors of single board
> > computers with Forth as the control language...
> >
> > Cheers, Ralph
> >
> > > check out http://www.robogeeks.com/mousehack.htm
> > >
> > > Bruce Boyes <lego-robotics@crynwr.com> schrieb in im Newsbeitrag:
> > > 5.1.0.14.2.20020629111459.00b4a278@mail.xmission.com...
> > > > http://www.agilent.com/about/newsroom/features/2002jun19_opticalmice.html
> > > >
> > > > Agilent makes the optical mice components and has shipped over 12 • million.
> > > > The link above has some explanation of how they work. It's an interesting
> > > > idea to see if these could be adapted for robotics.
> > > >
> > > > Bruce
> > > >
> > > >
> > > >
> > >
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Message has 2 Replies:
 | | RE: optical mouse chips as vision sensors?
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| (...) No, pbForth can easily read arbitrary chars coming in on the IR prot, we'd just need to switch the RCX to 1200 baud... (...) John, If you send me a modified mouse, I'll do the other Forth stuff needed to get this working in a weekend. Cheers, (...) (22 years ago, 1-Jul-02, to lugnet.robotics)
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Message is in Reply To:
| | RE: optical mouse chips as vision sensors?
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| One other interesting thing about this idea-- If it works, not only will you get the optical sensor, but you can probably get up to 5 touch sensors and a rotation sensor at the same time. I'm not sure how the signal is sent, but will the RCX be able (...) (22 years ago, 1-Jul-02, to lugnet.robotics)
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