Re: A86: Re: Radio Link problem solved
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Re: A86: Re: Radio Link problem solved
>ok, but i still wanna connect more than 2 calcs together!
>mind you, the calc itself needs only to talk to one device, that would
>make programming easier.
>
>-josh
Hmm.. not a bad idea. This is more of a protocol issue, but I see why it's
important. Let's say you have 20 students at a high school who have this
"radio link". If they each have to hook up to different computers in the
computer lab, then you'd need 20 computers. Also, each radio link would
have to be on it's own set of frequencies. Sharing frequencies would trash
other student's connections.
What we need to implement (in software of course) is some sort of network
protocol to manage up to a large number of students over one set of
frequencies. Like the IR link (and LAN's) each packet of data sent would
have a packet header associated with it and so on. And.. there would be
only one computer with a radio link on it and it would manage all 20
students. All 20 students would then have 'net access through the same
computer. If they wanted to chat then they'd just use unix IRC. The PC
program that serves all 20 students would be able to do all sorts of nifty
things like peer-to-peer calc connections, etc, though it may be easier to
make a unix app to link the calculators (I already did this before and you
could play Ztetris across the internet).
Anyways, back to the Radio Link itself. I think someone else should build
this Radio Link to be sure that it really works and so we can see how hard
it is to build from another person's perspective. And also, possible
improvements.
-Justin Karneges [Infiniti]
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