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'[EE] Adding Bluetooth to a uC?'
2009\01\16@133012 by Neil Cherry

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I'm curious (meaning hobby) about using Bluetooth without knowing
bluetooth. :-) What I want to do is to use the Bluetooth on my phone
that runs a Java application to talk to a near by data acquisition
system via the Bluetooth. I'm not trying to do anything really fancy
other than play with the technology. I'm thinking of using one of the
existing boards that I have (no Bluetooth, just serial ports).

Oddly enough I picked up a tiny USB Bluetooth dongle for $5 (and I
found it on this list). Unfortunately I can't find that information
at the moment.

Note: by hobby I mean one-off, just for my edification (keeping inline
with ideation ;-).

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2009\01\16@202416 by Xiaofan Chen

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On Sat, Jan 17, 2009 at 2:29 AM, Neil Cherry <.....ncherryKILLspamspam@spam@linuxha.com> wrote:
> I'm curious (meaning hobby) about using Bluetooth without knowing
> bluetooth. :-) What I want to do is to use the Bluetooth on my phone
> that runs a Java application to talk to a near by data acquisition
> system via the Bluetooth. I'm not trying to do anything really fancy
> other than play with the technology. I'm thinking of using one of the
> existing boards that I have (no Bluetooth, just serial ports).
>
> Oddly enough I picked up a tiny USB Bluetooth dongle for $5 (and I
> found it on this list). Unfortunately I can't find that information
> at the moment.

In that case, it is virtually not possible to interface your USB
dongle with a PIC, even with the USB PIC24/PIC32 with
host function due to the difficulties to write a host stack.

Cheap USB Bluetooth and webcam require powerful host
like PCs (or at least things like embedded Linux, WinCE, etc)
to deal with them.

Xiaofan

2009\01\16@230821 by Neil Cherry

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Xiaofan Chen wrote:
> On Sat, Jan 17, 2009 at 2:29 AM, Neil Cherry <ncherryspamKILLspamlinuxha.com> wrote:

>> Oddly enough I picked up a tiny USB Bluetooth dongle for $5 (and I
>> found it on this list). Unfortunately I can't find that information
>> at the moment.
>
> In that case, it is virtually not possible to interface your USB
> dongle with a PIC, even with the USB PIC24/PIC32 with
> host function due to the difficulties to write a host stack.
>
> Cheap USB Bluetooth and webcam require powerful host
> like PCs (or at least things like embedded Linux, WinCE, etc)
> to deal with them.

Sorry I didn't mean to imply that I was going to use the USB dongle
(a thing smaller than my thumb nail) as part of my board. When I
'listened in' on the Bluetooth thread there were several other
links to RS232 to Bluetooth boards that would work. So far I
haven't been able to find those links (might not have been on the
piclist). I've found a few by using Google but they're a bit more
expensive than I recall ($75+).

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2009\01\17@121003 by Vitaliy

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"Neil Cherry" wrote:
> Sorry I didn't mean to imply that I was going to use the USB dongle
> (a thing smaller than my thumb nail) as part of my board. When I
> 'listened in' on the Bluetooth thread there were several other
> links to RS232 to Bluetooth boards that would work. So far I
> haven't been able to find those links (might not have been on the
> piclist). I've found a few by using Google but they're a bit more
> expensive than I recall ($75+).

What do you need on the other side? RS232, or something else?

Vitaliy

2009\01\17@174818 by Neil Cherry

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Vitaliy wrote:
> "Neil Cherry" wrote:
>> Sorry I didn't mean to imply that I was going to use the USB dongle
>> (a thing smaller than my thumb nail) as part of my board. When I
>> 'listened in' on the Bluetooth thread there were several other
>> links to RS232 to Bluetooth boards that would work. So far I
>> haven't been able to find those links (might not have been on the
>> piclist). I've found a few by using Google but they're a bit more
>> expensive than I recall ($75+).
>
> What do you need on the other side? RS232, or something else?

RS232 or 'TTL' (3.3v or 5v) would be fine.

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2009\01\17@184508 by Vitaliy

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"Neil Cherry" wrote:
>> "Neil Cherry" wrote:
>>> Sorry I didn't mean to imply that I was going to use the USB dongle
>>> (a thing smaller than my thumb nail) as part of my board. When I
>>> 'listened in' on the Bluetooth thread there were several other
>>> links to RS232 to Bluetooth boards that would work. So far I
>>> haven't been able to find those links (might not have been on the
>>> piclist). I've found a few by using Google but they're a bit more
>>> expensive than I recall ($75+).
>>
>> What do you need on the other side? RS232, or something else?
>
> RS232 or 'TTL' (3.3v or 5v) would be fine.

We're using these in our scan tools:

http://tinyurl.com/5c96xe

Sparkfun took the same module, and created their own breakout box:

http://tinyurl.com/8eskke

In turn, we developed a similar board with the same pinout, and added three
LEDs (Tx/Rx/Status) to make it interesting. We went as far as building a
prototype, but the project was put on hold due to lack of interest. I can
post the schematics/board layout if anyone is interested.

My question is, at what price point would a module like that become
attractive to hobbyists?

Vitaliy

2009\01\17@185911 by Michael Algernon

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www.alibaba.com/product-gs/200324969/Bluetooth_Audio_Module_KB11R_.html
$10 in quantity

rovingnetworks.com
$35 to $70

http://www.scantool.net/files/pdf/stm4100/stm4100.pdf   $40



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 WFT Electronics
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All ideas, text, drawings and audio , that are originated by WFT  
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2009\01\17@192036 by Michael Algernon

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{Quote hidden}

I got a "404" error for this URL
{Quote hidden}

$25-$35 singles
MA


 WFT Electronics
Denver, CO   720 222 1309
" dent the UNIVERSE "

All ideas, text, drawings and audio , that are originated by WFT  
Electronics ( and it's principals ),  that are included with this  
signature text are to be deemed to be released to the public domain as  
of the date of this communication .

2009\01\17@232719 by Vitaliy

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"Michael Algernon" wrote:
>> Sparkfun took the same module, and created their own breakout box:
>>
>> http://tinyurl.com/8eskke
> I got a "404" error for this URL

Weird... Here is the full URL:

http://www.sparkfun.com/commerce/product_info.php?products_id=8550

>> My question is, at what price point would a module like that become
>> attractive to hobbyists?
>>
>> Vitaliy
>>
> $25-$35 singles

That's a tall order. :)  How many do you think we'd sell, at $35/pop?

Vitaliy

2009\01\17@233325 by Vitaliy

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"Michael Algernon" wrote:
> www.alibaba.com/product-gs/200324969/Bluetooth_Audio_Module_KB11R_.html
> $10 in quantity

Class 2, and I didn't see FCC ID mentioned anywhere.

Vitaliy

2009\01\18@013025 by Neil Cherry

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I'm currently looking at this:

Bluetooth SMD Module - SparkFun

http://www.sparkfun.com/commerce/product_info.php?products_id=8474

This would work for what I need. The ceramic antenna is fine. I
need to read through the online material to see if I need to modify
my programming in the AVR (I know it can do 3.3v).

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2009\01\18@022502 by solarwind

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www.sparkfun.com/commerce/product_info.php?products_id=8474

Looks cool.

2009\01\18@055859 by Ariel Rocholl

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This is the cheapest I found so far in low volume:
http://www.sureelectronics.net/goods.php?id=699

It is really tiny, although I didn't work with it yet.

2009/1/18 Neil Cherry <KILLspamncherryKILLspamspamlinuxha.com>

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> --

2009\01\18@113029 by Vitaliy

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"Neil Cherry" wrote:
> I'm currently looking at this:
>
> Bluetooth SMD Module - SparkFun
>
> www.sparkfun.com/commerce/product_info.php?products_id=8474
>

Neil, would you mind asking them for the FCC ID, when you place the order?

Vitaliy

2009\01\18@135213 by Neil Cherry

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Vitaliy wrote:
> "Neil Cherry" wrote:
>> I'm currently looking at this:
>>
>> Bluetooth SMD Module - SparkFun
>>
>> www.sparkfun.com/commerce/product_info.php?products_id=8474
>>
>
> Neil, would you mind asking them for the FCC ID, when you place the order?


If I order it I will. I have to wait for the next budget cycle (CFO,
aka my wife, keeps me on a tight budget :-). I didn't noticed anything
with the FCC mentioned on this.

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2009\01\19@195837 by rlistas

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And this one?
<http://aircable.net/serial.html>http://aircable.net/serial.html  ?


At 08:58 18/1/2009, you wrote:
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