Chuck Hursch <
[email protected]> wrote:
> I purchased one of those little BT dongles for 99cents on EBay. It did
> not have the oomph to connect to the car downstairs. It would connect
> to the DMM's dongle several feet away, however.
>
> Also, the serial dongle down in the car can be powered via a USB cable,
> but I don't have a USB source down there.
>
> Peter, your reply several months ago finally got me straightened out on
> what I needed to do with dongles and software. I don't remember the
> exact posting scene now, but I will say thanks. It was about the time I
> stopped bouncing off so many walls and started making progress.
>
> Peter Gabrielsson wrote:
>> Generally,
>>
>> Serial2BT adapters cost around $40 and up, you need one on the sending
>> device, in this case the meter and you need a blue-tooth enabled
>> computer or other device that support the serial port profile, SPP. A
>> USB blue-tooth adapter for a computer costs $3 but they are so small
>> you have to buy 5 because you'll loose them all the time..... You also
>> need Windows XP or other modern operating system with a BT stack.
>>
>> In Windows XP the remote Serial2BT adapter shows up as just another
>> serial port in your system, so you run whatever software you would run
>> if you had the device linked by cable.
>>
>> If you're an old fogie who runs MSDOS 6.3
, you can get two
>> adapters, one for the sending device and one for your intel 286
>> computer, the bluetooth adapters will talk to each other and it will
>> be just like having a cable connecting your device.
>>
>> Of course, the adapters need to be powered. The one in my car is
>> powered by a 6v wall-wart, I only use it when charging.
>>
>>
>>
>>
>> On Fri, Sep 17, 2010 at 8:51 AM, Lee Hart <
[email protected]> wrote:
>>>> "Would http://www.serialio.com/products/SerialMagic/use/Multimeter_BT_=
AAA.php
>>>> be something like you were thinking of?"
>>> It's hard to me to figure out exactly how this would work. Could someone
>>> explain?
>>>
>>> 1. It appears to read the serial data from a particular meter
>>> (Protek 506). I happened to have one of these meters; it worked
>>> for a year and died. As I recall, it sent encoded data (its LCD
>>> segments, rather than ASCII values). I had to run a Windows
>>> program on my PC to read its data.
>>>
>>> 2. I assume their device translates RS-232 data into Bluetooth RF
>>> data, which needs to be received by some device with Bluetooth.
>>> Won't most Bluetooth devices ignore it, because it's not a
>>> headset or other expected device?
>>>
>>> 3. They show a too-small-to-read screen on a high-end mobile phone
>>> that I guess is supposed to be telling you what the meter reads.
>>> Where does the software come from that translates the meter's
>>> segments into sensible readings on the phone?
>>>
>>> 4. The Protek meter I had was strictly battery operated (no AC
>>> adapter option). It also automatically shut itself off after
>>> 15 minutes of use, with no option to keep it on. Their Bluetooth
>>> device is also battery operated, and probably can't operate for
>>> very long. How would you get around that?
>>>
>>> 5. What is this whole affair going to cost? It looks like a number
>>> of over-$100-each black boxes are needed.
>>> --
>>> Lee A. Hart | Ring the bells that still can ring
>>> 814 8th Ave N | Forget the perfect offering
>>> Sartell MN 56377 | There is a crack in everything
>>> leeahart earthlink.net | That's how the light gets in -- Leonard Coh=
en
>>>
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>>
>>
>
>
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