Subject:
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Re: Digital Output
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Tue, 22 Sep 1998 15:09:35 GMT
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Original-From:
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The Plumber <JHOFFMAN@IT.SAIT.AB.nomorespamCA>
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Viewed:
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1244 times
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Check out:
http://el.www.media.mit.edu/groups/el/projects/handy-board/faq/index.html#digout
Thanks,
Joe Hoffmann
E-Mail jhoffman@it.sait.ab.ca
On Tue, 22 Sep 1998, Mark Limb wrote:
> Hi,
> I am working on a totally autonomous sumo wrestling robot, using the HB
> as its brain. I have interfaced sensors to it, and even designed a high
> current motor driver circuit to directly interface to the existing L293D
> inputs (Info available on request). My main problem is, I have designed
> an Infra Red proximity sensor based on a sharp TV IR demodulator. This
> reciever recieves 600 microsecond pulses modulated using a 38KHz
> carrier. I have generated the 38kHz carrier using a 555 timer chip, and
> I am using the HB to pulse this wave at 600 microsecond intervals. To
> do this I need a digital output port, as 9 of the HC11 digital ports are
> assigned to inputs, I was wondering what the easiest way to access two
> digital outputs, (SPI an option?),
>
> Thanks for your help
> Joshua Wherrett
>
>
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Message is in Reply To:
 | | Digital Output
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| Hi, I am working on a totally autonomous sumo wrestling robot, using the HB as its brain. I have interfaced sensors to it, and even designed a high current motor driver circuit to directly interface to the existing L293D inputs (Info available on (...) (26 years ago, 22-Sep-98, to lugnet.robotics.handyboard)
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