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Subject: 
Re: NXT to NXT communication?
Newsgroups: 
lugnet.robotics
Date: 
Tue, 2 May 2006 23:45:16 GMT
Viewed: 
3108 times
  
In lugnet.robotics, Brian Davis wrote:
In lugnet.robotics, Ross Crawford wrote:

I'm hoping someone out there has 2, and has
investigated NXT-NXT communication. Is it possible?

   Yep. I'm not at all sure about hardwiring two NXT's together - to be honest,
I've not even thought about it, because BT connections are so easy and secure.
Early on I investigated the BT option by sending simple numbers between two
NXT's. But there are other options: Steve H made a remote control, and I
recently made another one (time for some NXT racing!). And since communication
can go two ways, the "vehicle" can send detailed information to the remote for
display etc.

What about multiple NXTs? How well does Bluetooth handle message collisions?
Does the NXT have anything built-in to handle them, or would I need to program
some kind of re-try protocol? I assume it also has no built-in addressing
protocol?

ROSCO



Message has 1 Reply:
  Re: NXT to NXT communication?
 
(...) 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)

Message is in Reply To:
  Re: NXT to NXT communication?
 
(...) Yep. I'm not at all sure about hardwiring two NXT's together - to be honest, I've not even thought about it, because BT connections are so easy and secure. Early on I investigated the BT option by sending simple numbers between two NXT's. But (...) (19 years ago, 2-May-06, to lugnet.robotics)

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