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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Fri, 5 May 2006 05:31:24 GMT
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Viewed:
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3161 times
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I haven't seen any discussion on the performance of the bluetooth messaging.
I've measured PC to NXT round trip (send message and receive acknowledgement) as
typically being 30 milliseconds. Has anyon else done these measurements and were
your results the same?
I haven't measured NXT to NXT communications to see if it has the same
performance as NXT to PC.
With the RCX, the IR was simultaneously broadcast to all RCXs in range. BT has
no broadcast function so I guess you could emulate it by sending individual
messages to up to three slaves -- but I worry that the third NXT doesn't get the
message until 10s of milliseconds after the first.
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Message has 1 Reply:
 | | Re: NXT to NXT communication?
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| (...) I can't figure out a easy way for me to test PC-to-NXT timelag, but I tried some simple bench tests on NXT-to-NXT. This is just the old standard of two timed loops (10,0000 interations), one empty, and one with a single block (or two), and (...) (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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| (...) Yes, that's a tough one... (...) I've played around with a few ideas using bluetooth. In addition to the NXT->NXT remote, I wrote a program for my Bluetooth enabled PDA using eVB. Jim Kelly actually has a screenshot in his blog (URL) under (...) (19 years ago, 4-May-06, to lugnet.robotics)
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