Subject:
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Re: lnp communication question
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Newsgroups:
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lugnet.robotics.rcx.legos
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Date:
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Sat, 20 May 2000 15:32:26 GMT
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Viewed:
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1355 times
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In lugnet.robotics.rcx.legos, Luis Villa writes:
> Remember the medium... cheap IR basically stinks for transmission. You
> get transients from the lights in your room, the outdoors, yadda, yadda.
> Luis (wishing for RF like the Europeans get ;)
Ok, this brings up more questions :).
I have never had any problems with errors when sending messages. Sometimes the
message is not recieved but when it is, I have never seen any errors in the
transmission. Am I missing your point?
Second, what is RF? I live in Europe, so if there is a difference between
European and American versions, I am not certain which I have.
Back to errors in transmission. Is a system with checksum or something similar
used when transmitting?
Regards
Tobias
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Message has 1 Reply:
 | | Re: lnp communication question
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| (...) lnp does a checksum and throws away bad data. I think it is a 1 byte checksum so 1 out of 256 errors gets through anyway. There is no retry so timeout and retry has to be handled by some higher level code. (25 years ago, 21-May-00, to lugnet.robotics.rcx.legos)
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Message is in Reply To:
| | Re: lnp communication question
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| Remember the medium... cheap IR basically stinks for transmission. You get transients from the lights in your room, the outdoors, yadda, yadda. Luis (wishing for RF like the Europeans get ;) (...) ---...--- "Going to California with an aching in my (...) (25 years ago, 17-May-00, to lugnet.robotics.rcx.legos)
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