Subject:
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Re: simple but functional radar
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Newsgroups:
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lugnet.robotics
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Date:
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Wed, 13 Jan 1999 19:58:55 GMT
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Original-From:
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Peter Hesketh <PBH@PHESK.DEMON.CO.UKihatespam>
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Viewed:
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915 times
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In article <002301be3e9c$ca7b2180$2b00c8c0@tim.ams.co.nz>, Tim McSweeney
<tim@ams.co.nz> writes
> With this IR Radar stuff is the reflected signal that is picked up by the
> sensor also strong enough to be picked up by the RCX? if so....
It would be, if the RCX wasn't transmitting at the same time. Remember
the echo you get from a tower back to the PC even with no RCX present.
I would guess that there is a very strong optical crosstalk in the IR
unit which would always be there, and so the RCX always receives, and
which its firmware presumably throws away.
--
Regards - Peter Hesketh, Mynyddbach, Mon.
Forty reasons why a dog is better than a woman: number 17
"A dog's disposition stays the same all month long."
--
Did you check the web site first?: http://www.crynwr.com/lego-robotics
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Message has 1 Reply:
 | | Re: simple but functional radar
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| (...) Based on my experiments, this is exactly what's happening. In hindsight it really can't be any other way, but I was really looking forward to working out something where the IR port could do the whole proximity detection without getting the (...) (25 years ago, 13-Jan-99, to lugnet.robotics)
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Message is in Reply To:
| | Re: simple but functional radar
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| With this IR Radar stuff is the reflected signal that is picked up by the sensor also strong enough to be picked up by the RCX? if so.... Send Out a number N, If the sensor thinks there is something close then if last number received via IR port == (...) (25 years ago, 13-Jan-99, to lugnet.robotics)
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