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I'd like to connect many computers and devices on a bluetooth network. Some devices are on different floors of my building. How can I extend the range of the network such so they can all communicate?

For computers, I could use a bluetooth module with a good antenna. (eg: 50 meters range)

For devices, how would they be able to contact the computers if their range is only 10 meters?

I've searched for "bluetooth repeaters" in Google but I don't understand how they work. Do they relay communication so my computer software can connect directly to the device and be unaware of the repeater in between? Or do I have to program specifically for the repeater?

flag	asked Nov 12 at 14:03 Jeremy Rudd 33●4

Marc G. · Accepted Answer · 2009-11-14 00:48:26Z UTC

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If Some cabling is an option, I've seen some Bluetooth-RS422/485 converters. That might buy you some range.

answered Nov 14 at 0:48

Marc G.
370●5

Excellent idea! Thanks for the link and for the practical solution. – Jeremy Rudd Nov 14 at 17:10

Scott Whitlock · Answer 2 · 2009-11-24 03:30:19Z UTC

I actually used Bluetooth in a production application with these barcode scanners. Range was definitely a problem, and they tended to power down or go to sleep, and it was a bit frustrating for the operators trying to figure out why it wouldn't scan right away. I would say, watch out for Bluetooth in production applications right now, or do a lot of testing first.

Jordan D · Answer 3 · 2009-11-25 17:23:43Z UTC

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I haven't used them yet but I ran across a product from AIRcable like the one described above that boasts its range is up to 28 miles. I have not tested this but it may be something to look into.

answered Nov 25 at 17:23

Jordan D
93●6

Andy H · Answer 4 · 2009-12-10 14:01:49Z UTC

If you use a Bluetooth repeater your traffic on either end shouldn't require any knowledge of the repeaters operation. A repeater essentially is just a receiver an amplifier and a transmitter.

As Scott Whitlock said I would caution the use of wireless anywhere that data cannot be lost or where speed is a factor.

DaveM · Answer 5 · 2009-12-08 14:44:12Z UTC

As I cannot comment due to lack of points, I will ask here.... What is the reason to use Bluetooth(PAN) devices on a computer? Range as you know is limited and speed is also very low. Would some form of hybrid work or do you require the PAN to function as a LAN for a specific reason?

Extending the range of a Bluetooth network?

5 Answers