HYDROLOGICAL SERVICES BLUECOMMS BC1 Operation Manual

Hydrological Services Pty Ltd

BLUECOMMS

Bluetooth Communicator

Model BC1

OPERATION MANUAL

HYDROLOGICAL SERVICES Pty Ltd

48-50 Scrivener Street

Liverpool NSW 2170

Australia

Ph. 61 2 9601 2022 Fax. [phone]

Internet: www.hydrologicalservices.com

E-Mail: [e-mail]

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Hydrological Services Pty Ltd

TABLE OF CONTENTS

1. Introduction............................................................................................... 3

2. Product Overview...................................................................................... 4

2.1 Overview............................................................................................................... 4

3. Installation ................................................................................................. 5

3.1 Hardware Connections ....................................................................................... 5

3.2 Baud Rate.............................................................................................................6

3.3 Batteries................................................................................................................ 6

3.4 LED Indicator...................................................................................................... 7

3.5 Connection............................................................................................................ 7

4. Operation ................................................................................................... 8

4.1 Connection to a PDA........................................................................................... 8

4.2 Connection to a Notebook................................................................................... 10

4.3 Comms Applications............................................................................................ 13

5. Specification............................................................................................... 14

5.1 Hardware Specification....................................................................................... 14

BlueComms Model BC1
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BC1 100-2 Issue 1.00 5 June, 2006

Hydrological Services Pty Ltd

1. Introduction

The Hydrological Services BlueComms BC1 has been designed using surface mount
technology to provide a small, robust, Bluetooth
MiniLog data logger in the field using a PDA. The unit is powered by 2 x AA alkaline
batteries. The indicator LED gives immediate feedback of the battery condition as well as the
Bluetooth connection status.

Please note that this device is intended for short term use to retrieve data, or change settings –
it is not intended to provide a permanent Bluetooth interface to a MiniLog data logger.

What is Bluetooth ?

Bluetooth is the code name for a new wireless technology developed by Ericsson Inc., Intel
Corp., Nokia Corp. and Toshiba. The technology enables data connections between electronic
devices such as desktop computers, wireless phones, electronic organizers and printers in the

2.4 GHz range. Bluetooth replaces cable or infrared connections for such devices.
(Definition from

www.braddye.com/glossary.html )

TM

interface for retrieving data from the

BlueComms Model BC1
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Hydrological Services Pty Ltd

2. Product Overview

2.1 Overview

The Hydrological Services BlueComms Communicator is a BluetoothTM to RS232 interface
with several unique features.

• DB9 Male connector for direct connection to the HS MiniLog.

• Self powered by 2 x AA alkaline batteries.

• Protected against incorrect installation of batteries.

• Provides 6V DC power to the MiniLog during a communication session.

• Automatically powers on when plugged into the MiniLog.

(when unplugged, power consumption is zero)

• Monitors and indicates the internal AA battery status.

• Indicates the Bluetooth connection status.

• Rubber sided enclosure for positive grip.

• Up to 10m (30ft) range.

BlueComms Model BC1
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Hydrological Services Pty Ltd

3. Installation

The BlueComms has a single DB9 male connector, which has been configured for direct
connection to the HS MiniLog ML1. Note that the BlueComms battery is not connected until
it is plugged into the MiniLog – at which time pins 7 is looped to pin 8. This then powers the
BlueComms unit and in turn provides 5.5V on pin 4 to power the MiniLog during the
communication session. When the BlueComms unit is unplugged from the MiniLog, the
battery is disconnected and no power is consumed.

3.1 Hardware Connections

The DB9 male connector on the BC1 is as follows :-

Pin No. BlueComms BC1 Signal Name

(DB9 Male)

1 N.C. O.C. Output
2 Rx (RS232 Serial data input) Tx
3 Tx (RS232 Serial data output) Rx
4 Pwr to MiniLog (5.5V DC) ExtPwr
5 Gnd Gnd
6 N.C. Ext Pwr
7 Battery Out (2 x AA = 3V DC) Ext Pwr
8 Battery In (3V DC) Ext Pwr
9 N.C. Bucket Tip I/P

Notes:

1. When the BC1 is directly connected to a MiniLog the following handshake signals are
linked :

• Pins 4 and 6 are linked together inside the ML1.

• Pins 7 and 8 are linked together inside the ML1.

2. When the BC1 is directly connected to an ML1, sufficient power is extracted on pin 4 to
power the ML1 – which prevents power drain from the internal ML1 lithium battery
while communications is in progress.

Signal

Direction

ML1 Signal

DB9 Female

BlueComms Model BC1
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BC1 100-5 Issue 1.00 5 June, 2006