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'[PIC]: wireless ... bluetooth ??'
2005\12\02@133334 by Stef Mientki

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hello,

I thinking of realizing a wireless link, from a portable PIC system to a PC.
The needed datarate is about 100 kbit.
No (or maybe very slow) data from PC to PIC.

Another requirement is to use as much standard components as possible.

So there seems 2 ways to go:  wifi  or  bluetooth.

Now my guess is that bluetooth devices are easier to interface with a pic,
and more general available (in small quantities)  then wifi.

Anyone has experience with these interfaces ?
Any other comment ?

thanks,
Stef Mientki

2005\12\02@140503 by Mark Samuels

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I've used the WRAP THOR 2022-1 modules from http://www.bluegiga.com

They're VERY easy to use with a PIC.

-Mark

{Original Message removed}

2005\12\02@154357 by Richard Prosser

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{Quote hidden}

You could look at the Nordic chips - some even have an embedded 8051
microcontroller so you won't need the PIC

Or Zigbee chips - various chipset requirements depending on the source
- which includes Microchip.

RP

2005\12\02@155511 by Robert Rolf

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Stef Mientki wrote:

{Quote hidden}

Look for SPP bluetooth. (serial port profile)

Something like 'The Shark' bluetooth-RS232/RS485 modules.
115k baud  capable.
http://www.stevenswater.com/catalog/stevensProduct.aspx?SKU='80000'
Not cheap at $400 USD, but turnkey

And this one, from the UK. $150 USD
http://www.brainboxes.com/products/bluetooth/product.asp?id=BL-510

If anyone knows of something similar, and cheaper, I'd love
to know about it.

Robert


2005\12\02@192214 by William Chops Westfield

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On Dec 2, 2005, at 10:33 AM, Stef Mientki wrote:

>  wireless link, from a portable PIC system to a PC.
> The needed datarate is about 100 kbit.
> No (or maybe very slow) data from PC to PIC.

> So there seems 2 ways to go:  wifi  or  bluetooth.
>
Add 'zigbee' as well, I think.

> Any other comment ?
>
Wifi scales better.  Cheap stuff is 10Mbit, and 54Mbit to 108Mbit
are pretty common...

BillW

2005\12\03@001134 by Scott Pierce

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Speaking of wireless connectivity with PIC Micros, has anyone tried
connecting one of these USB Bluetooth Dongles
(http://www.geeks.com/details.asp?InvtId=BT-DONGLE&cm_ven=Pricewatch.com&cm_cat=Shopping&cm_ite=total)
to a PIC that supports USB?  Any success?  Other than potential driver
issues, can anyone think of why this might not work?  The price is great,
it's already FCC approved, etc.  Just a thought.

Scott Pierce

At 05:22 PM 12/2/2005, you wrote:

{Quote hidden}

>

2005\12\03@010602 by Scott Pierce

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Sorry to reply to my own post but I did some digging on the net and found a
less expensive version.  $5.99 each or $3.73 if you buy 5 or
more.  http://tekgems.com/Products/et-17587-nwl-bt-dongle.htm?frg.

I also found a link on how to get it to work under Linux so I assume the
source code to communicate with them is available:
http://www.autexier.de/jmau/linux/Bluetooth.html

Scott Pierce



At 10:11 PM 12/2/2005, you wrote:
{Quote hidden}

>>-

2005\12\03@022248 by Anand Dhuru

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.> to a PIC that supports USB?  Any success?  Other than potential driver
> issues, can anyone think of why this might not work?  The price is great,
> it's already FCC approved, etc.  Just a thought.
>
The way I understand the issues, your USB PIC device, as well as the
bluetooth dongle would both be slaves, with no connection to a USB host (as
in a PC).

The combination can therefore not be made to work.

Regards,

Anand

2005\12\03@145213 by Jan-Erik Soderholm

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Scott Pierce wrote :

> has anyone tried connecting one of these USB
> Bluetooth Dongles [...] to a PIC that supports USB?

Two USB "devices" can't talk to each other.
They can only talk to a USB "host".

Jan-Erik.



2005\12\03@161438 by Marc Nicholas

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www.sparkfun.com

Look at their Blueradio-based modules. Very, very easy to use and well
priced.

-marc

On 12/2/05, Stef Mientki <spam_OUTs.mientkiTakeThisOuTspammailbox.kun.nl> wrote:
{Quote hidden}

>

2005\12\05@100814 by Stef Mientki

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thank you all for the response.

The blueradio-based modules indeed looks great, and easy to interface.

Another interesting component might be the LMX9820
http://www.farnell.com/datasheets/55450.pdf

Stef

Marc Nicholas wrote:

{Quote hidden}

>>-

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