Subject:
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Re: Emitting 40khz IR
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Wed, 10 Apr 1996 13:10:28 GMT
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Original-From:
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Ramasubramanian, M. K. <RAMMK@EOSnospam.NCSU.EDU>
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Viewed:
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2138 times
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poke(0x1000,0x40);
will turn the IR on at 40KHZ and poke(0x1000,0x0); will turn it off.
> How do I send out 40khz IR on the handyboard IR port so that I can use a
> Sharp IR detector for proximity sensing? I would need a signal that
> wasn't modulated at 100 or 125 hz, right? Just a straight 40khz signal.
> Any help would be appreciated.
>
> -John
>
>
>
Dr. M. K. Ramasubramanian
Assistant Professor
Department of Mechanical and Aerospace Engineering
North Carolina State University
Box 7910
Raleigh, NC 27695-7910
(919)515-5268
(919)515-7968 (FAX)
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Message has 1 Reply:
 | | Nuggets
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| While trying to unload some IS1U60 IR receivers, I found the sharp data site. It turns out that the IS1U60 has a center freq of 38 khz, while 40khz is is well within its pickup range, I wonder if changeing the circuit on the HB to 38khz would (...) (29 years ago, 10-Apr-96, to lugnet.robotics.handyboard)
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