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Bluetooth connection to multiple devices
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Author:  aurinko [ Fri Apr 26, 2013 3:30 pm ]
Post subject:  Bluetooth connection to multiple devices

Hi,

I'm trying to connect my brick to both my phone (or laptop haven't made up my mind yet) and another brick. Unfortunatelly when I'm trying to connect the second device, doesn't matter whether it's another brick or phone, the other connection gets disconnected or I get the "line busy" message.

Any ideas what might be the reason for that? And how to solve it?


A.

Author:  NeXT-Generation [ Mon May 06, 2013 2:41 pm ]
Post subject:  Re: Bluetooth connection to multiple devices

At a guess, I'd say that the phone needs to be the "master" and the NXT's as "slaves". That would mean that the phone has to receive and send the messages that the NXTs would normally be sending directly to one another.

Author:  roboRed [ Sun Jun 02, 2013 8:56 pm ]
Post subject:  Re: Bluetooth connection to multiple devices

My best guess is that the NXT can only handle 3 NXT device, and only 1 Other device at one time. I really don't know. :oops:

Author:  Ernest3.14 [ Mon Jun 03, 2013 12:05 am ]
Post subject:  Re: Bluetooth connection to multiple devices

I don't think you can daisy chain NXTs... Although you can do that with EV3s ;)
But what you can do is connect both to a computer :)

Author:  roboRed [ Mon Jun 03, 2013 7:39 pm ]
Post subject:  Re: Bluetooth connection to multiple devices

Ernest3.14 wrote:
I don't think you can daisy chain NXTs...



Why not? :shock:

Author:  Ernest3.14 [ Mon Jun 03, 2013 9:33 pm ]
Post subject:  Re: Bluetooth connection to multiple devices

Well, there was a comparison article between NXTs and EV3s which mentioned that you couldn't daisy chain NXTs... I think it's because you need to have capabilities to filter messages/packets and it just complicates things.

Author:  mattallen37 [ Mon Jun 03, 2013 9:33 pm ]
Post subject:  Re: Bluetooth connection to multiple devices

Because they aren't designed for it. The EV3 has USB host, but the NXT doesn't.

You can make a large wired NXT network using RS485 though.

Author:  roboRed [ Mon Jun 03, 2013 9:35 pm ]
Post subject:  Re: Bluetooth connection to multiple devices

Ok, Thanks

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