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'[EE] Bluetooth how-to'
2005\11\03@084700 by Vic Fraenckel

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I have a small sensor board that passes data from a pair of sensors to a remote app less than 10 meters from the sensor location. This is currently done with a RS232 link. The link is two-way, in that the app requests data and the sensor board responds. There is no handshaking of any type. I would like to eliminate this cabled link by transmitting the data via bluetooth from/to the remote app. The link must be pretty reliable. It IS NECESSARY for the link to ultimately present the data to the app and to the sensor board as RS232 data. As usual, cost is an issue.

Is BT the way to go here? What alternate wireless solution(s) should I consider?
Any enlightenment will be appreciated.

Vic
________________________________________________________

Victor Fraenckel - The Windman         victorf ATSIGN windreader DOT com
KC2GUI

2005\11\03@091944 by Mike Harrison

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On Thu, 3 Nov 2005 08:46:07 -0500, you wrote:

>I have a small sensor board that passes data from a pair of sensors to a remote app less than 10 meters from the sensor location. This is currently done with a RS232 link. The link is two-way, in that the app requests data and the sensor board responds. There is no handshaking of any type. I would like to eliminate this cabled link by transmitting the data via bluetooth from/to the remote app. The link must be pretty reliable. It IS NECESSARY for the link to ultimately present the data to the app and to the sensor board as RS232 data. As usual, cost is an issue.
>
>Is BT the way to go here? What alternate wireless solution(s) should I consider?

BT is probably serious overkill for this, but the availability of cheap Bluetooth USB dongles may
help (if you can figure out how to talk to them - not sure how standardised this is) - I'd look at
short-range 433/869MHz modules or possibly Zigbee.


2005\11\03@101535 by Spehro Pefhany

picon face
At 08:46 AM 11/3/2005 -0500, you wrote:
>I have a small sensor board that passes data from a pair of sensors to a
>remote app less than 10 meters from the sensor location. This is currently
>done with a RS232 link. The link is two-way, in that the app requests data
>and the sensor board responds. There is no handshaking of any type. I
>would like to eliminate this cabled link by transmitting the data via
>bluetooth from/to the remote app. The link must be pretty reliable. It IS
>NECESSARY for the link to ultimately present the data to the app and to
>the sensor board as RS232 data. As usual, cost is an issue.
>
>Is BT the way to go here?
>What alternate wireless solution(s) should I consider?

Have a look at Zigbee.

>Best regards,

Spehro Pefhany --"it's the network..."            "The Journey is the reward"
spam_OUTspeffTakeThisOuTspaminterlog.com             Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog  Info for designers:  http://www.speff.com
->> Inexpensive test equipment & parts http://search.ebay.com/_W0QQsassZspeff


2005\11\03@110205 by Paul Hutchinson

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The serial to bluetooth adapter from http://www.aircable.net/ works well as
long as you can live with the very short range that the bluetooth standard
provides.

Paul

> {Original Message removed}

2005\11\03@114917 by Spehro Pefhany

picon face
At 11:02 AM 11/3/2005 -0500, you wrote:
>The serial to bluetooth adapter from http://www.aircable.net/ works well as
>long as you can live with the very short range that the bluetooth standard
>provides.

Bluetooth has the usual low power type with claimed 10m range in free air,
and a high power type ("Class 1") with 100m range.

Too bad that outfit doesn't have a USB<->USB with Bluetooth (or whatever
wireless) in the middle. I could actually use that.

Best regards,

Spehro Pefhany --"it's the network..."            "The Journey is the reward"
.....speffKILLspamspam@spam@interlog.com             Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog  Info for designers:  http://www.speff.com
->> Inexpensive test equipment & parts http://search.ebay.com/_W0QQsassZspeff


2005\11\03@115254 by KY1K

picon face
At 11:02 AM 11/3/2005, you wrote:

>The serial to bluetooth adapter from http://www.aircable.net/ works well as
>long as you can live with the very short range that the bluetooth standard
>provides.


I didn't catch the start of this thread, but I have a related question.

I need stand alone full transceivers that take audio in and output
audio. They need to use low power so they can run on batteries and
only need to cover 20 to 30 feet indoors (no large metal
obstructions). They do not need to be full duplex, but a full duplex
system is ok.

I want then for a wireless link to my ham radio transceiver, so I can
move about the house some and still be able to talk and listen to the
activity on the transceiver and be able to transmit if I want to.

I can find wireless microphones, and can find wireless
headphones....but I can't find a system that has BOTH.

Any suggestions?

Art



2005\11\03@120608 by alan smith

picon face
Take a look at the Xbee...they are TTL serial, so slap on a RS232 driver and you are there.

http://www.maxstream.net


Mike Harrison <mikespamKILLspamwhitewing.co.uk> wrote:
On Thu, 3 Nov 2005 08:46:07 -0500, you wrote:

>I have a small sensor board that passes data from a pair of sensors to a remote app less than 10 meters from the sensor location. This is currently done with a RS232 link. The link is two-way, in that the app requests data and the sensor board responds. There is no handshaking of any type. I would like to eliminate this cabled link by transmitting the data via bluetooth from/to the remote app. The link must be pretty reliable. It IS NECESSARY for the link to ultimately present the data to the app and to the sensor board as RS232 data. As usual, cost is an issue.
>
>Is BT the way to go here? What alternate wireless solution(s) should I consider?

BT is probably serious overkill for this, but the availability of cheap Bluetooth USB dongles may
help (if you can figure out how to talk to them - not sure how standardised this is) - I'd look at
short-range 433/869MHz modules or possibly Zigbee.


2005\11\03@122107 by Marc Nicholas

picon face
Sparkfun (http://www.sparkfun.com) have some interesting Bluetooth (and
other) solutions.

-marc

On 11/3/05, alan smith <.....micro_eng2KILLspamspam.....yahoo.com> wrote:
{Quote hidden}

>

2005\11\03@130710 by alan smith

picon face
sounds like IRLP  :-)

KY1K <ky1kspamspam_OUTpivot.net> wrote:At 11:02 AM 11/3/2005, you wrote:

>The serial to bluetooth adapter from http://www.aircable.net/ works well as
>long as you can live with the very short range that the bluetooth standard
>provides.


I didn't catch the start of this thread, but I have a related question.

I need stand alone full transceivers that take audio in and output
audio. They need to use low power so they can run on batteries and
only need to cover 20 to 30 feet indoors (no large metal
obstructions). They do not need to be full duplex, but a full duplex
system is ok.

I want then for a wireless link to my ham radio transceiver, so I can
move about the house some and still be able to talk and listen to the
activity on the transceiver and be able to transmit if I want to.

I can find wireless microphones, and can find wireless
headphones....but I can't find a system that has BOTH.

Any suggestions?

Art



2005\11\04@160559 by Gus Salavatore Calabrese

face picon face
Check these guys out
AGSC


http://www.insteon.net/
http://www.insteon.net/sdk/forum/login.asp?target=default.asp     puppetboy   12151492insteon

http://www.smarthome.com/

What is INSTEON™
INSTEON™ is a powerful, wireless home-control networking technology  that simply, affordably and reliably integrates systems in the home  for improved comfort, safety, convenience and value.

Applications

    * Scene and remote control lighting
    * Security alarm interfaces and sensors
    * Home sensors (e.g. water, humidity, temperature)
    * Access control (e.g. door locks)
    * Heating and cooling (HVAC) control and management
    * Audio-video control
    * Appliance management
    * Energy savings



Network Topology

INSTEON is a robust, redundant dual-band mesh network that combines  wireless radio frequency (RF) with the home's existing electrical  wiring. INSTEON is less susceptible than other single band networks  to the kind of interference and noise commonly encountered within the  home.

INSTEON leverages the latest digital technology to create a true peer- to-peer mesh network. Because all INSTEON devices are peers, they do  not require network supervision, so complex network controllers and  routing tables are not required.

Reliable
Reliability is a hallmark of INSTEON Networks. Building on a peer-to- peer mesh network foundation, INSTEON confirms every message to  insure that messages are received error-free, and automatically  retransmits corrupted messages. Because every INSTEON device acts as  a two-way repeater, the INSTEON Network becomes stronger and more  reliable as it grows.

Affordable
INSTEON is very inexpensive for manufacturers to integrate into a  wide variety of home devices from light switches to appliances.  INSTEON-compatible devices are expected to be available for less than  $25.00 at retail.

Fast
INSTEON uses advanced digital signal processing to encode and  transmit messages, enabling rapid transmission of control data  between INSTEON devices. Individual INSTEON messages can also carry  up to 14 bytes of arbitrary user data to support unlimited home- control applications from developers.

Works with legacy X10
The INSTEON technology allows manufacturers to develop products that  are both INSTEON-compatible and X10-ready. Homeowners with existing  X10 networks can easily migrate to an INSTEON network without having  to discard all their existing X10 devices. Please note that INSTEON  devices repeat INSTEON signals and not X10.

How Does INSTEON Compare with ZigBee, Z-Wave, HomePlug, Bluetooth, X10?

ZigBee & Z-Wave: Single-band (RF-only) wireless networks that require  a network controller.

HomePlug: Focused on broadband applications; not a cost-effective  technology for home control.
Bluetooth: Designed as an ad-hoc, short-range network technology, not  intended for home-control networking.
X10: Inexpensive but lacks the robustness, flexibility and  reliability required by today's home-control applications.
UPB: Expensive single-band technology.

Which INSTEON products are available?
INSTEON compatible devices are available now from Smarthome Design  and will soon be available from other manufacturers, both large and  small. INSTEON Developer Kits are available now starting at $99 at  (USB and Serial). Additionally, other manufacturers plan on releasing  products during the second half of 2005.

INSTEON Compatible Logo
INSTEON Compatible     The INSTEON compatible logo assures product  compliance to the INSTEON quality standard.

INSTEON Alliance
To date, more than 60 developers have joined the INSTEON Alliance.  Several of the leading developers, including Fortune 500 companies,  are on the INSTEON Advisory Council. Developers kits are currently  available (USB and Serial). For more information on becoming an  Alliance member please contact @spam@SalesKILLspamspamINSTEON.net.

Support for Other Network Technologies?
RS232 serial, USB and Ethernet bridges will soon be available to  allow communications with the Internet, computers and a wide variety  of security and wiring panels. Additionally, a "TW-523 emulator" is  under development. Smarthome plans to add additional bridges to other  network technologies in the future.

INSTEON Market Report and Analysis
    This independent detailed report prepared by West Technology  Research Solutions LLC (WTRS) analyzes the INSTEON technology market  as an emerging protocol for the home automation. The report can be  accessed from WTRS.

Have additional questions?
# Contact Us: Contacts
# web: http://www.smarthome.com/custhelp.com (search for INSTEON)
# phone:1.800.SMARTHOME (800.762.7846

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