Subject:
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some more questions about lnp.
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Newsgroups:
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lugnet.robotics.rcx.legos
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Date:
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Fri, 27 Sep 2002 18:29:33 GMT
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Viewed:
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2491 times
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ok, im back again with even more questions.
when i created my last program using lnp on an RCX i did a mistake by
setting the same port as the one im listening on and the one im sending
on.
this made me think. what is the reason we use two different ports to
listen for, and send, messages?
i mean, you are either sending or receiving. IR by its nature (as i
understand it), is a broadcast medium and if one RCX sends at the same
time
as another RCX tries to send, the resulting IR that may, or may not, get
to the other RCX will most likely be garbled. thus an RCX cannot
be sending and receiving an IR message at the same time!
By this errr....theorem(?) i conclude that only one port is needed to
send and receive.
soo..hmm...any comments ?
regards
kennethj
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Message has 1 Reply:
 | | Re: some more questions about lnp.
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| duh... guess i was kinda wrong here.. IR is in reality a frequency defined from A to B. any messages sent within this spectre is said to be IR messages. so in theory sending an IR message closer to A than B from one RCX. and at the same time sending (...) (22 years ago, 28-Sep-02, to lugnet.robotics.rcx.legos)
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