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Subject: 
Re: Bluetooth: Limited to 5?
Newsgroups: 
lugnet.robotics.nxt
Date: 
Thu, 8 Sep 2011 18:10:25 GMT
Viewed: 
25559 times
  
I don't know what the numeric limit is, but there is a limit of some sort, as I
heard that Monster Chess ran into it and the central computer has to continually
set up and tear down connections to the 32 different pieces, it cannot be in
constant contact with all of them at once. So the limit has to be less than 32,
for sure.

I vaguely recall mention of 7? Not sure.

Hopefully Steve H or another MC builder will comment

As far as I know the only limit is that you 4 have only 4 NXT connected together
at one time, one master and three slaves. This explains why the Monster Chess
that contains at least 32 NXT must constantly make and break connections. But
you can have a much higher number of NXT operating in the same room (eg. the
Monster Chess) without problems. There can be many masters talking at the same
time to 3 slaves each. One thing I heard (didn't experiment myself), the
discovery phase can take a VERY long time if there are many BT devices in the
same room. But if the NXT know each other this is not an issue either.

Philo



Message is in Reply To:
  Re: Bluetooth: Limited to 5?
 
(...) I don't know what the numeric limit is, but there is a limit of some sort, as I heard that Monster Chess ran into it and the central computer has to continually set up and tear down connections to the 32 different pieces, it cannot be in (...) (13 years ago, 19-Aug-11, to lugnet.robotics.nxt)

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