Author Topic: communication with more, then 8 devices  (Read 3574 times)

Offline sevastianovd

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communication with more, then 8 devices
« on: December 26, 2011, 05:44:05 AM »
hello,
i have 50 devices around the server. communication is via bluetooth spp, use MS BT stack.
after connection device is comes to undiscoverable mode.
the communication is short command (a few characters).
i need very fast connect & disconnect from server to devices, that all devices can communicate.
is it possible by WCL lib?

Offline Mike Petrichenko

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Re: communication with more, then 8 devices
« Reply #1 on: December 26, 2011, 09:13:46 AM »
Yes of course. Find all devices then connect to each (you can connect to 7 devices at one time).

Offline sevastianovd

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Re: communication with more, then 8 devices
« Reply #2 on: December 26, 2011, 09:39:37 AM »
will the virtual COM-port up? or communication will be without COM-port? what time is need to connect (best variant)?
about "Find all devices", BT receiver can`t see more, then 7 devices, isn`t it?

Offline Mike Petrichenko

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Re: communication with more, then 8 devices
« Reply #3 on: December 26, 2011, 09:44:37 AM »
Use wclClient to communicate with your devices (see BluetoothConnection demo). Connection time depends on hardware (BT dongle and remote device), distance, how many other devices work on the same frequency and lot of other factors. BT Receiver can find all devices but can't connect to more than 7 at the same time.

Offline sevastianovd

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Re: communication with more, then 8 devices
« Reply #4 on: December 26, 2011, 09:56:20 AM »
is it really to have 0.1 sec to connection in favorable conditions?

Offline Mike Petrichenko

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Re: communication with more, then 8 devices
« Reply #5 on: December 26, 2011, 09:58:57 AM »
I afraid it can't be so fast.

Offline sevastianovd

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Re: communication with more, then 8 devices
« Reply #6 on: December 26, 2011, 10:03:22 AM »
thank you very much!

 

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