Subject:
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Re: NXT to NXT communication?
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Newsgroups:
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lugnet.robotics
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Date:
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Thu, 4 May 2006 02:26:03 GMT
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Viewed:
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3062 times
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In lugnet.robotics, David Hurley wrote:
>
> I can't speak for the NXT, but knowing that it has BT, and should be adhering to
> the specs, then the answer would be yes. The master-slave communication is
> coordinated via time slots within a piconet.
Dave,
I don't know a whole lot about BT (beyond the little I've found out because of
this project), but your assessment is correct.
The protocol is implemented according to BT spec, so all communication is done
through master-slave communication.
The thing that's confusing in my (and Brian's) explanation is that any NXT can
be a master, with three slaves, AND can be a slave to one master.
There is no direct slave to slave communication, and no master to master
communication.
The fact that any NXT can be a master and/or a slave allows you to bypass the
four-connection limit.
Any less muddy? :)
Steve
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Message has 2 Replies:
 | | Re: NXT to NXT communication?
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| (...) A little - the next question of course is: Can NXT1 be both slave (to NXT0) and master (to NXT2, NXT3, NXT4) at the same time? Or does that require sneaky protocol to switch between the 2? ROSCO (19 years ago, 4-May-06, to lugnet.robotics)
| | | Re: NXT to NXT communication?
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| (...) Yes just kinda murky now! There are still good opportunities for a wireless network of NXT's! One could write a program on a single master and control as many lower level NXT's as you could bring together! Like one general commanding three (...) (19 years ago, 5-May-06, to lugnet.robotics)
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Message is in Reply To:
| | Re: NXT to NXT communication?
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| (...) I can't speak for the NXT, but knowing that it has BT, and should be adhering to the specs, then the answer would be yes. The master-slave communication is coordinated via time slots within a piconet. This would avoid message collisions. In (...) (19 years ago, 4-May-06, to lugnet.robotics)
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