Firmtech BM2001 Instruction

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

1

ABOUT BM2001:

Class 1 / USB Interface

DIP switch is available for a second setting

4dBi Dipole Antenna provided

AT Command provided

Bluetooth USB

Serial Adapter

Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

2

CONTACT US

Firmtech.Co.,Ltd
Tel: [phone]~3 Fax: [phone]
Website: www.firmtech.co.kr
Mail : [e-mail]

Synopsis of BM2001

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

3

Part

Specification

Bluetooth Spec.

Bluetooth Specification V1.2

Communication distance

100 M

Frequency Range

2.4 GHz ISM Band

Sensitivity

-83dBm (Typical)

Transmit Power

16dBm (Typical)

Size

23 (Width) X 70 (Length) X 11 (Height)

Support Bluetooth Profile

SPP

Input Power

5V

Current Consumption

Maximum 100 mA

Operating Temperature

-10℃ ~ 50℃

Communication Speed

1,200bps ~ 115,200bps

Antenna

Dipole Antenna (4 dBi)

PC interface

USB (Standard)

Flow Control

RTS,CTS,DTR,DSR support

< BM2001 Specification >

< BM2001 Dimension >

Table of Contents

Power LED

Status LED

Power ON/OFF Switch

Reset Switch

SMA Connector

23 mm (width)

11 mm (height)

70 mm (length)

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

4

1. INTRODUCTION OF BM2001 ........................................................................................................... 5

1.1 DIFFERENTNESS BETWEEN BLUETOOTH USB ADAPTER & USB DONGLE .................................................... 6

1.2 SYNOPSIS OF BLUETOOTH USB ADAPTER .............................................................................................. 7

2. PACKAGE CONSTITUTION ................................................................................................................ 7

3. EXTERNAL VIEW ............................................................................................................................... 9

4. DEFAULT SETTING .......................................................................................................................... 10

5. SPECIFICATION AND POWER CONSUMPTION ...................................................................... 11

6. COMMUNICATION DISTANCE DEPEND ON THE ANTENAS .......................................................... 12

7. DESCRIPTION OF DIP SWITCH ....................................................................................................... 13

7.1 FUNCTION SELECT SWITCH ............................................................................................................... 14

7.1.1 Role select switch ............................................................................... 14

7.1.2 Mode select switch .............................................................................. 15

7.2 BAUD RATE SWITCH ......................................................................................................................... 16

8. LED INDICATION / RESET SWITCH ................................................................ ................................ 17

9. BM2001 DEVICE DRIVER INSTALLATION ...................................................................................... 18

9.1 WINDOWS 98 .................................................................................................................................. 18

9.2 WINDOWS 2000 .............................................................................................................................. 25

9.3 WINDOWS XP .................................................................................................................................. 29

10. UNINSTALLATION OF BM2001 USB ADAPTER DRIVER ............................................................. 33

10.1 WINDOWS 98, WINDOWS 2000 & WINDOWS XP .............................................................................. 33

11. SETTING-UP COM PORT FOR BM2001 ....................................................................................... 34

11.1 WINDOW 98 ................................................................................................................................. 34

11.2 WINDOWS 2000 & WINDOWS XP .................................................................................................... 35

12. CONFIGURATION OF BM2001 ..................................................................................................... 36

12.1 PREPARING FOR PC CONFIGURATION MODE ....................................................................................... 36

12.2 RUN TO PC CONFIGURATION MODE .................................................................................................. 38

12.3 EXPLAINATION OF MENU ................................................................................................................ 39

12.3.0. DEVICE NAME ........................................................................................................................... 39

12.3.1. Authentication ................................................................................. 39

12.3.2. Remote BD ADDRESS / Local BD Address .................................................. 40

12.3.3. Connection Mode .............................................................................. 40

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

5

12.3.4. UART CONFIG .................................................................................. 42

12.3.5. Status Message ................................................................................. 42

12.3.6. Power Save Mode .............................................................................. 42

13. USE BM2001 .................................................................................................................................. 43

13.1 ATTENTION BEFORE BM2001 IS USED ............................................................................................... 43

13.2.1 Pairing in MODE1 ............................................................................... 44

13.2.2 Pairing in MODE2 ............................................................................... 44

13.2.3 Pairing in MODE3 ............................................................................... 44

13.2.4 Pairing in MODE4 ............................................................................... 45

13.3 PAIRING BY USING CONNECTION WIZARD ............................................................................................ 46

14. BLUETOOTH COMMUNICATION BY BM2001 .............................................................................. 51

14.1 COMMUNICATION TEST AT 9,600 BPS ................................................................................................ 51

14.2 COMMUNICATE TEST AT 115,200 BPS ............................................................................................... 54

15. AT COMMAND ................................................................................................................................ 57

15.1 DEFINITION OF TERMINOLOGY .......................................................................................................... 57

15.2 DESCRIPTION OF AT COMMAND ..................................................................................................... 59

15.3 COMMAND VALIDITY ....................................................................................................................... 67

1. Introduction of BM2001

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

6

Bluetooth USB Serial Adapter, BM2001 is a product that is developed, designed and

produced by Firmtech Co, ltd. (formerly BTnetworks Inc.). It is for replacement of

standard RS232 cable perfectly, with USB interface, so can be easily adopted for

upcoming industrial machines, which do not have legacy RS232 interface.

Security of Bluetooth wireless communication is very strong because it uses the frequency

hopping and 128bit encryption in 2.4Ghz frequency range.

Hardware setting is very easy and simple.

- The maintenance is very convenience.

- One pair of BM2001 will try to connect automatically whenever powered up.

It needs an installation of the USB device driver.

- Doesn’t need to install the application software.

You can choose various configuration with DIP Switch (In DIP-Switch mode)

- Set Baud Rate (1,200 bps ~ 115,200 bps)

- Set the Role as Master or Slave

- Select Mode: DIP-Switch Configuration mode or PC configuration mode

BM2001 does not required external power supply as it gets power from USB port.

<Fig.1.1 BM2001 with default Dipole (4dBi) antenna & DIP switch>

1.1 Differentness between Bluetooth USB Adapter & USB Dongle

Section

Bluetooth USB Adapter

USB Dongle

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

7

Hardware

Marged function USB to Serial
Converter function and Bluetooth Serial
Adapter function

Organized Bluetooth Module and
Antenna

Software

It is operating with programmed
software in Bluetooth Module’s flash
memory

It is operating with windows
application for USB Dongle

ETC

Install Device Driver

Need

Need

(To recognize USB)

Install application

software

Not need

Need

Profile for Bluetooth

SPP

SPP,PAN,DUN,LAN,HID,etc

USB Dongle

BM2001

1.2 Synopsis of Bluetooth USB Adapter

The Bluetooth USB Adapter is marged the cable, which has USB to Serial convertor chipset function, and

Bluetooth Serial Adapter function as below picture.

2. Package Constitution

BM1001

BM2001

+

=

USB to Serial Converter I C

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

8

<Fig.2.1 BM2001 with default Dipole (4dBi) antenna & DIP switch >

Model no.

Pictures

Q’ty

Remarks

BM2001

1EA

Default

FBA004DA

(4 dBi)

1EA

CD

1EA

FBA008PA

External Antenna (8 dBi)

Optional

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

9

3. External View

<Fig 3.1 BM2001’s external view >

Power ON/OFF Switch

Reset Switch

Dip Switch

Power ON/OFF Switch

Status LED

Power LED

Reset Switch

<Top View>

<Left View>

<Right View>

<Bottom View>

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

10

4. Default Setting

BM2001’s default setting is set as below table.
Before you use this product, please check default configuration.

Part

DIP Switch Mode

( Default setup : Factory setting )

PC Configuration Mode

Default

Setting

Baud rate = 9600 bps

Device Name = BMx001v 3.7

Data Bit = 8 Bit

PIN Code = BTWIN

Stop Bit =1 Bit

Connection Mode = MODE3

Parity Bit =No Parity Bit

Baud rate = 9600 bps

RTS,CTS,DTR,DSR Provided

Data Bit = 8 Bit, Stop Bit =1 Bit,

Role = MASTER or SLAVE

Parity Bit = No Parity Bit

Unpaired(need pairing)

ROLE = Slave

Variable

Values

Baud rate setting

Device name setting

Role select

Pin Code setting

- Master / Slave

Local BD Address View

Mode select

Remote BD Address setting

- DIP-Switch Mode

UART Configuration setting

- PC Configuration Mode

Searching / Connecting Bluetooth Devices

Note

Factory Setting : DIP Switch Mode

By using Hyper Terminal Program, it is possible
to set the configuration of BM2001 with Serial
connection (RS232C).
It is also used to connect other Bluetooth
equipment.

<Table 2.1 BM2001’s default setting and variable values>

NOTE: DIP switch mode is Default Factory Setup.

User can change the setting of BM2001 by DIP Switch and PC configuration mode.
Please refer to the DIP Switch description and the way to use the PC configuration mode.

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

11

5. Specification and power consumption

Part

Specification

Bluetooth Spec.

Bluetooth Specification V1.2

Communication distance

100 M

Frequency Range

2.4 GHz ISM Band

Sensitivity

-83dBm (Typical)

Transmit Power

16dBm (Typical)

Size

23 (Width) X 70 (Length) X 11 (Height)

Support Bluetooth Profile

SPP

Input Power

5V

Current Consumption

Maximum 100 mA

Operating Temperature

-10℃ ~ 50℃

Communication Speed

1,200bps ~ 115,200bps

Antenna

Dipole Antenna (4 dBi)

PC interface

USB (Standard)

Flow Control

RTS,CTS,DTR,DSR support

<Table 5.1- BM2001 Specification >

Status

Current Consumption

MIN

MAX

Standby

20

24

Device searching

100

106

Pairing / Before Connection

86

88

After Connection

50

55

Data Transferring

59

64

<Table 5.2 Power Consumption >

Test Environment

Baud rate: 9600 bps, Input Voltage: DC 5V

Power consumption is depends on the baud rate.

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

12

6. Communication Distance depend on the Antenas

안테나

Part No

RF Gain

비 고

FBA001DA

1 dBi

Within 100M

FBA004DA

4 dBi

Within 100M
However, the sensitivity is
better then FB001DA.

FBA008DA

8 dBi

Within 500M

Notice: Caused by the circumference wireless environment, the difference will be able to occur in

communication distance.

< Table 6.1 Dipole Antennas and distance >

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

13

7. Description of Dip Switch

Open the DIP-Switch cover and you may see DIP switch as in below.

Function Select Switch

Baud Rate Switch

- Function Select Switch

PIN#1 is used to select power supply way.
PIN#3 is used to select the role, Master or Slave.
PIN#4 is used to select mode, PC configuration mode or DIP Switch mode

- Baud Rate Switch

You may set the various baud rates with the baud rate switch.
Pin#1 is not in use. Pin#2, 3 and 4 are used for the baud rate setting.
The baud rate settings can be configured in the range from 1,200 bps to 115,200 bps.

Before you change the Function Select Switch and Baud Rate Switch, the device must be
turned off.

Dip Switch

Dip Switch Cover

ON

OFF

3:Master/Slave Select Switch

4:Mode Select Switch

ON

OFF

2,3,4:Baud Rate Setting Switch

<Bottom View>

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

14

7.1 Function Select Switch

7.1.1 Role select switch

In order to make Bluetooth connection between two BM2001s, one should be MASTER and the
opposite side device should be SLAVE. User may select the role with pin#3 of the function
select switch.

Function Select Switch

Baud Rate Switch

By Pin #3 of the function switch, it is able to set Role (Master / Slave).

i) MASTER

Pin#3 of function select switch is up.

The piece which the user controls if possible being set with the
MASTER mode is good.

ii) SLAVE

Pin#3 of function select switch is down.

CAUTION: If the selection of BM2001’s role is wrong, BM2001 can not make the

connection and communication.

ON

OFF

ON

OFF

3:Master/Slave Select Switch

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

15

7.1.2 Mode select switch

Dip Switch Mode

PC configuration Mode

Role select (Master/Slave)

Baud Rate setting

Device name setting

PIN Code setting

Status message on/off

Remote device address setting

UART configure setting

Power save mode on/off

Operation mode select

1) DIP Switch Mode

Generally, BM2001 is used to Dip switch mode for communication.

2) PC Configuration Mode

Hyper Terminal Program is used for this mode.
After the configuration is changed in this mode, you must change the mode to Dip switch
mode.

In this mode, it is only able to set the configuration of BM2001.
( Impossible to communication in this mode )

Function Select Switch

Baud Rate Switch

You can select the mode of configuration using pin#4 of the function select switch.

i) DIP Switch Mode

BM2001 must be DIP Switch mode to communicate.
Mode select switch is down. (Default)

ii) PC Configuration Mode

To into the PC configuration Mode, Mode select switch is up. After set
the parameters of BM2001, BM2001 has to be DIP Switch mode.

4 : Mode Select Switch

ON

OFF

ON

OFF

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

16

7.2 Baud Rate Switch

BM2001 provides wide range of communication speeds from 1,200 bps to 115,200 bps.
Users may set the baud rate of BM2001 with only the baud rate switch from 1,200 to 115,200
bps. Check the Baud Rate Switch setting.

Function Select Switch

Baud Rate Switch

User can set the baud rate with DIP Switch.

Setting Baud rate Switch (Black color is switch position)

1200 bps

2400 bps

4800 bps

9600 bps

19200 bps

38400 bps

57600 bps

115200 bps

[ CAUTION ]

- Pin#1 of the Baud Rate Switch is not in use.

- Pin#4 of the function select switch must down to be DIP Switch Mode.

ON

OFF

ON

OFF

2,3,4 : Baud Rate Setting Switch

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

17

8. LED indication / Reset Switch

8.1- Power indication LED / Status indication LED

You can find the status of BM2001 with Red and Green LED indicator.

LED

Status

Description

Power LED

Power ON

Red LED is On (Stable)

Status LED

Connecting

Green LED is flashing twice per second.

Connected

Green LED is On (Stable)

Enter Configuration Setting

Red LED is flashing twice per second.

Configuration Setting

Red LED is flashing three times per second.

9.2 Reset switch

Status LED

Result after Reset

Red LED is flushing

Push the reset switch on the pc configuration mode.
BM2001 will get back to factory setting.

Power ON/OFF Switch

Status LED

Power LED

Reset Switch

<TOP View>

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

18

9. BM2001 Device Driver Installation

9.1 Windows 98

1) Attach BM2001 to
USB port of PC and turn
on the BM2001.

2) The pop up window
will appear for new
hardware device.

3) Click Next button.

4) Select “Search for a

suitable driver for my

device [recommended]”

and click Next button.

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

19

5) Select “CD-ROM
drivers” and click Next

button.

6) Windows found a
driver for BM2001.
Click Next button.

7) First driver Installing
procedure has finished.
Click Finish button.

* You should do driver
installing procedure one
more time

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

20

8) You may see new pop
up window.

Click Next button.

9) Select “Search for a
suitable driver for my

device [recommended]”

and click Next button.

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

21

10) Select “CD-ROM
drivers” and click Next

button.

11) Windows found a
driver for BM2001.
Click Next button.

12) All driver Installing
procedure has finished.
Click Finish button.

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

22

If you have any troubles installing the driver, you may try another way. Here is another
way you may follow.

1) Attached BM2001 to
USB port of PC and turn
on the BM2001.

2) ”Found new hardware

device” message will be

displayed.

3) Click next button.

4) Select “Search for a

suitable driver for my

device [recommended]”

and click Next button.

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

23

5) Select “Specify a
location” and click Next

button.

6) Move to CD-ROM’s
BTWIN BM2001 USB
Adapter install driver.

7) Select “Btbus” file and
click “Open” button.

8) Windows found a
driver for BM2001.
Click Next button

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

24

9) Driver installing has

finished. Click Finish

button.

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

25

9.2 Windows 2000

1) Attach BM2001 to USB
port of PC and turn on
the BM2001.

2) The pop up window
will appear for new
hardware device.

3) Click Next button.

4) Select “Search for a

suitable driver for my

device [recommended]”

and click Next button.

5) Select “CD-ROM

drivers” and click Next

button.

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

26

6) Windows found a
driver for BM2001.
Click Next button.

7) First driver Installing
procedure has finished.
Click Finish button.

* You should do driver
installing procedure one
more time

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

27

8) You may see new pop
up window.

Click Next button.

9) Select “Search for a
suitable driver for my

device [recommended]”

and click Next button.

10) Select “CD-ROM

drivers” and click Next

button.

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

28

11) Windows found a
driver for BM2001.
Click Next button.

12) All driver Installing
procedure has finished.
Click Finish button.

If you have any troubles in installation of the driver :

In Step #5, select “Specify a location” then specify “BTWIN BM2001 USB Adapter” folder in CD-ROM

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

29

9.3 Windows XP

Before set up the device driver, turn off the BM2001’s power switch.
The device driver install procedures are separated two steps.
The first step is making the driver folder in the Windows.

[1] Move to “BTWIN BM2001 USB Adapter driver “ folder on CD be provided,
and you can see below window.

[My Computer][CD Rom Drive][BTWIN BM2001 USB Adapter driver]

[2] Double click the
“Setup” icon, and the
pop-up window will
appear.

[3] Click the "install"
button, and installing
procedure will start.

[4] Ok button click
First step has finished.

Open the C drive of your computer, and you can find “BTWIN” folder.

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

30

[6] Now, the installing procedure will begin from here for the BM2001’s device driver. Turn on
the power switch of BM2001.

[7] Check Power LED. It will be turned on.

[8] The windows shall find

the new device and you
will see the pop-up
window

Select“Install the
software automatically
[Recommended]” and
press “Next” button.

If your OS is a Windows
XP, you will see the next
windows.

You can ignore that

massage, click “Continue

Anyway” button.

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

31

[9] Click “Finish” button,

and window will
disappear.

The first installation
procedure has been
finished.

[10] New windows will
appear, but it is not a
problem. You will do one
more same procedure for
the driver installing.

[11] Select “Install the
software automatically

[Recommended]” and
press “Next” button.

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

32

[12] If your OS is a
Windows XP, you will see
the next windows.

But you can ignore that

massage, click “Continue
Anyway” button.

[13] Click “Finish” button,
and window will
disappear.
All installations have
been finished.

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

33

10. Uninstallation of BM2001 USB Adapter driver

10.1 Windows 98, Windows 2000 & Windows XP

[1] Move to [My
computer][Control
Panel][Add/Remove
programs]

[2] You may see “BTWIN

USB Adapter”.

Select that and click

“Change/Remove”

[3] Click “Yes” button.

[4] Click “Yes” button.

[5] Reboot message will be

shown.

Click “Yes” button

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

34

11. Setting-up COM Port for BM2001

11.1 Window 98

[1] Move to [My computer]

[Control Panel][System]
[Hardware]
[Device Manager]

[2] Click Port, and you may

see “BTWIN BM2001 USB

Adapter”

[3] Double click BM2001 to
see its property.

[3] Select the Resources
Tab.

[4] If you want to change
COM port for BM2001, you
should change the Setting
based on.

[5] Please refer to below
table.

COM Port No

설정값

COM 1

03F8 – 03FF

COM 2

02F8 – 02FF

COM 3

03E8 – 03EF

COM 4

02E8 – 02EF

COM port Number is

assigned by Input /

Output Range.

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

35

11.2 Windows 2000 & Windows XP

[1] Move to [My
computer]

[Control Panel]
[System]
[Hardware]
[Device Manager]

[2] Click Port, and you

may see “BTWIN BM2001
USB Adapter”

[3] Double click BM2001
to see its property.

[4] Select “Port Setting”

Tab.

[5] Click “Advanced” button.

[6] Set COM port No.

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

36

12. Configuration of BM2001

Generally, Baudrate, Role is set in Dip Switch mode.
For detailed configuration, PC configuration mode is provided.

12.1 Preparing for PC Configuration mode

For this mode, BM2001 should be connected to PC (DTE) then power it on

[1] In order to use PC Configuration Mode, you need the serial communication software.

Here we explain the usage scenario with HyperTerminal of Windows.

[2] Check PC’s COM Port which is connected to BM2001
BM2001 is used visual Com Port therefore please check visual COM Port then start next step

[3] Execute Hyper Terminal and select Baudrate.

[4] Set other serial configuration

Bits per second : Should be matched to DIP switch setting
Data bits : 8, Parity : None, Stop bits : 1, Flow control : None

[5] Click “OK” button.

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

37

[6] Open the menu [FilePropertyConfiguration] at Menu Bar.

[7] Click to “ASCII Setup” button of Settings tab in the properties to into ASCII setup mode.

Check the “Echo typed characters locally” box in the ASCII Sending.

[8] Afterward above set up and turn on the BM1001.

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

38

12.2 Run to PC configuration Mode

After above Hyper Terminal setup and run, input “t” then PC configuration mode will be
shown as below picture.

How to use Menu

For selection of menu, number key with Enter key is used.
e.g) If user want to change DEVICE NAME,
Input “0” then press Enter key : Into DEVICE NAME menu.

1) After input menu number, you must press Enter key.

2) Input “t” : Go to TOP MENU.

3) Cancel character : “” Key
If “” key press, “Retry >” message will be shown for re-input

4) If you input wrong menu number or wrong character, “Retry > “ will be shown.

5) If the length of inputed character is over 12, “Overflow buffer” message will be shown

then “Retry >” message will be appeared.

* Push Reset button : Initialize to factory setup.

7) After the configuration is completed, turn it off then change to Dip switch mode and turn it

on.

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

39

12.3 Explaination of MENU

12.3.0. Device Name

NO

Menu

Default Value

0

Device Name

BMx001v3.7

[0.1] Bluetooth device’s name

User can change the device name within 12 characters.

[0.2] Afterward input the name then press the enter key.

It will be appeared “Change Complete!!” message and then move to TOP MENU.

12.3.1. Authentication

To connect other bluetooth devices it needs an authentication, pin code, encryption.
User may set them in this menu.

NO

Menu

Default Value

1

Authentication

Enable PIN Code [BTWIN]

Sub Menu

No

Menu

Default Value

1

Authentication

Enable

2

PIN CODE

BTWIN

3

Encryption

Enable

1.1 Authentication

[1-1-1] User may set to request the authentication procedure.
[1-1-2] When it is disable, the encryption feature is disable too.
[1-1-3] The default setting is enable.

1.2 PIN CODE

[1-2-1] It is like a password.
[1-2-2] To connect between two devices, they have to have a same pin code.
[1-2-3] You can enter the pin code within 12 characters.
[1-2-4] After enter the pin code, “Change complete !!” message will be displayed.

And then move to AUTHENTICATION SUB MENU.

1.3 Encryption

[1-3-1] This encrypt the data between two bluetooth devices.
[1-3-2] The default setting is enable.
[1-3-3] If the authentication is disable, this is disable too.

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

40

12.3.2. Remote BD ADDRESS / Local BD Address

NO

Menu

Default Value

2

REMOTE BD ADDRESS / Local BD Address

000000000000

/ Local Address

2.1 Local BD Address

[1.1] This is a MAC address of Bluetooth Device. It is fixed parameter. You can’t change it.

2.2 Remote BD ADDRESS

[2.2.1] This is the latest paired bluetooth device address.
[2.2.2] If you want to connect new bluetooth device, delete the latest paired bluetooth
device address and then enter new bluetooth address. (In mode3)
[2.2.3] If you want to write the Remote BD Address directly, “Connection Mode” has to be
Mode3.
[2-2-4] Input Remote BD address by Hexa number.
If changing address is completed, “Change complete!!” will be shown then Top Menu will be
shown

12.3.3. Connection Mode

NO

Menu

Default Value

3

Connection Mode

Mode3

3-1 There are 3modes.
/ Mode1 / Mode 2 / Mode 3 / Mode 4 /

[3-1-1] MODE 1
In this mode, BM2001 always connect the latest paired bluetooth device.
If BM2001 has not the Remote BD address, try to connect the first bluetooth device is
searched. At this time, two bluetooth devices must have same PIN code.

[3-1-2] MODE 2
Firstly, the device will search the Bluetooth devices around then try to connect.
If the connection mode is changed to Mode2, turn it off then change to Dip switch mode and
turn it on..

In Master mode case

BM2001 can search the bluetooth devices have same PIN code round it.
And the bluetooth devices list will be displayed.
User can select one among the bluetooth devices list.

Operation

BM2001 search for the bluetooth devices round it.
Keep searching mode until search for 7 slave devices.

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

41

Menu

Description

1~7

Search for 7slave devices.

S

Stop searching

R

Restart searching

Back Space

Cancel the input character

If you want to terminate searching mode, input “s”.
Input the number of device and BM2001 try to connect with it.
If fail to connect, it will be displayed message “The selected device is not connectable!!”

In Slave mode case

BM2001 is inquiry scan and page scan mode.
When it received the connection request from the Master has same PIN code, it connect the
master.

After pairing, BM2001’s connection mode has to be Mode1.
If you don’t it, whenever powered up BM2001 will search for the bluetooth device round
it.

[3-1-3] MODE 3
if you know the Remote BD address, you can change the Remote BD address directly.
Input the BD address of Remote device to “Remote BD Address”.

If you input twelve zero”000000000000” to Remote BD address, BM2001 will be connect the
first bluetooth device has same pin code around it.

[3-1-4] Mode 4
Waiting for AT Command.
User can control BM2001 with AT command only.
Refer to AT Command list in Appendix.

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

42

12.3.4. UART CONFIG

NO

Menu

Default Value

4

UART Configure

Data bit: 8bit

Parity bit: None

Stop bit: 1

SUB MENU

No

Menu

Default Value

1

Parity Bit

None

2

Stop Bit

1

4-1 RS-232 (Parity Bit)

Provided Parity Bit: NONE, ODD, EVEN

4-2 RS-232 (Stop Bit)

Provided Stop Bit : 1BIT, 2BIT

12.3.5. Status Message

NO

Menu

Default Value

5

Status Message

Enable

Status Message

No

Message

Description

1

“BTWIN Master Mode Start

Working start BM2001 as Master mode

2

“BTWIN Slave Mode Start”

Working start BM2001 as Slave mode

3

“ Connection OK”

Connected with remote device

4

“Disconnection”

Disconnected with remote device

5-1 When BM2001 is started and connected with remote device, the message will be shown.
5-2 If you don’t want to this message, set the message status as disabled.

12.3.6. Power Save Mode

NO

Menu

Default Value

6

Power Save Mode

Disable

6-1 BM2001 provides power save feature.

If you use this option, BM2001 needs wake-up time.

6-2 If you don’t need this feature, set the power mode as disable.

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

43

13. Use BM2001

13.1 Attention before BM2001 is used

Pairing

To communicate between bluetooth devices, they have to do pairing.
The pairing defends the hacking from unknown bluetooth device.

PIN Code

Two bluetooth devices have same pin code for pairing.
If you want to pair with other bluetooth device, refer to its user manual.

Search for bluetooth device around

BM2001 has to be master mode to search for other bluetooth device.
When BM2001 is slave mode, it can only inquiry scan and page scan mode.

Connection Mode

BM2001 has 4 connection modes. The default mode is MODE3.

Mode 1
BM2001 will try connection with the last paired bluetooth device.
BM2001 memories BD address of the last paired bluetooth device.
If BM2001 has not the Remote BD address, try to connect the first bluetooth device is
searched. At this time, two bluetooth devices must have same PIN code.

Mode 2

Search for bluetooth device around BM2001, and user can choice one of them.
BM2001 will try connecting with it.

Mode 3

If you know the bluetooth address, you can change the Remote BD address directly.
Input the BD address of Remote device to “Remote BD Address”.
If you input twelve zero”000000000000” to Remote BD address, BM2001 will be connect the

first bluetooth device has same pin code around it.

Mode 4

Waiting for AT Command.

Fix the PIN Code

BM2001’s pin code is “BTWIN”.
If other bluetooth device’s pin code is different, change the pin code.

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

44

13.2 Pairing on each connection mode

Check BM2001’s configuration.

If it is difficult to know the configuration, push RESET switch in PC configuration mode for
factory setup to the device. If you use FIRMTECH products for pairing, one should be MASTER,
another should be SLAVE.

CAUTION: In the PC configuration mode, if you push Reset switch, all configuration value
will be changed to the factory setup.

13.2.1 Pairing in MODE1

For pairing in Mode1, remote device address should be “000000000000” (This means device
has not remote device address). Recommend to be factory setup.
For configuration, please refer Dip switch mode and PC configuration mdoe.

[1] Change the connection mode to MODE1 on PC configuration mode.
[2] Power OFF and change the mode to DIP Switch Mode.
[3] Set the baud rate of BM2001. Two devices have to set as same baud rate.
[4] Power it on.
[5] BM2001 will try connect with the first bluetooth device has same pin code.

When the status LED is flashing until make pairing.

[6] If the pairing is completed, the status LED is stable.
[7] After the first pairing, BM2001 will connect with the paired device whenever powered on.

* CAUTION : If there are other Bluetooth devices, it is possible to connect other device,

We don’t recommend if there are a lot of Bluetooth devices.

13.2.2 Pairing in MODE2

[1] Change the connection mode to MODE2 on PC configuration mode.
[2] Power off and change the mode to DIP Switch mode then power it on.
[3] If you want to search and connect to the device, BM2001 should be MASTER mode.
[4] After searching the devices, it will be shown the device list which you can connect.
[5] Select the device which you want to connect, then BM2001 will be try to pair.

If it is impossible to pair, “The selected device is not connectable !!” message will be
shown.

[6] After pairing, change connection mode to Mode1 in PC configuration mode.

If the device restart without changing mode, the device will be searching other devices

again.

13.2.3 Pairing in MODE3

[1] Change the connection mode to MODE3 on PC configuration mode.
[2] Input the Remote BD address which is you have known.
[3] Change the connection mode to MODE1.

[4] After setup, power it off and change the mode to Dip switch mode then power it on.
[5] If BM2001 can connect with the remote bluetooth device, responds the connection ok

message.

CAUTION: If Remote BD Address is wrong, the device will be try to connect wrong address.
When you input Remote BD address, please care about it.

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

45

13.2.4 Pairing in MODE4

AT Command controls BM2001.

Refer to AT command manual.

[1] Change the connection mode to Mode4 on PC configuration mode then change Dip switch
mode with power off.
[2] After power it on, BM2001 is waiting the AT command from host.
If you input AT, OK message will be shown – Waiting status for AT command.
[3] Input “AT+BTINFO? ” to BM2001.

- Pairing in MASTER MODE

(1) If the device is not Master mode, input “AT+BTROLE=m” for changing Master mode.
(2) To do soft reset, input “ATZ” to BM2001
(3) To search for the bluetooth devices that are slave mode, input “AT+BTINQ?”.

BM2001 will give the information of the bluetooth devices.

If you want to terminate searching task, input “AT+BTCANCEL”.

(4) To connect with the bluetooth device, input “ATD 123456789012”.
123456789012 is the bluetooth device address which you want to connect.

(5) If the pairing is completed, “Connection [Remote BD Address]” message will be shown.
(6) If the communication is started, the device is not recognized AT command.
For recognizing AT command during the communication, input “+++”, then the device will

be waiting AT command.

- Pairing in SLAVE MODE

(1) Because the device is Slave mode in factory setup, you don’t need to change any

configuration.

(2) For trying to pair, input “AT+BTSCAN”
(3) If the pairing is completed, “Connection [Remote BD Address]” message will be shown.
(4) If the communication is started, the device is not recognized AT command.
For recognizing AT command during the communication, input “+++”, then the device will

be waiting AT command.

If the device is turned off, the connection will be stopped.
After reboot, if you input “ATD”, the device will be connected paired devic.

If the device save the connection and connect automatically even though the device is
rebooted, change the connection mode to MODE1.

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

46

13.3 Pairing by using connection wizard

Attention before it use

Check PC’s COM Port which is connected to BM2001

BM2001 is used visual Com Port therefore please check visual COM Port then start next step

< How to check user’s Com Port >

The visual COM Port is displayed “CP210x USB to Bridge Controller” or “BTWIN BM2001 USB

Adapter”.

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

47

[1] Firstly, run the Connection Wizard Program as below picture.

[2] Click “SET COM PORT” button.

.

[3] Select COM Port which will be used by Slave mode, then click “OK” button.

[4] Click “Next” button.

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

48

[5] Check “Slave – Scan Mode” then click “Next” button

[6] Click “SET COM PORT” then select COM Port which will be used by Master mode, then click

“Next” button.

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

49

[7] Check “Master - Inquiry Mode” then click “Next” button.

[8] If all of process is successful, “Next ” button will be enabled. Click this button.

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

50

[9] Check “Continuous connect with currently connected devices”, then click “Close” button.

 In this mode, if BM2001 is turned off, it will be disconnected.
 If you want to connect the last connection automatically, even though BM2001

reboots, change connection mode to Mode3.

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

51

14. Bluetooth Communication by BM2001

14.1 communication test at 9,600 bps

Product Test

Description

Required equipment

PC: 2 EA

BM2001 : 2 Set

Test Environment
PC: Power on / OS : Windows

Use USB Port for BM2001

Part

Default

(Before modification)

User Setup

(After modification)

Configuration

Value

Master /Slave Selection

Master or Slave

Master or Slave

Mode Selection

DIP Switch Mode
PC Configuration Mode

DIP Switch Mode
PC Configuration Mode

Baud Rate

9600 bps

9600 bps

Parity Bit

None

None

Stop Bit

1 Bit

1 Bit

Hardware Flow Control

None

None

* If you use default value, there is not any modified valus.

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

52

Follow below step for product test.

[1] For Baudrate setup to 9,600bps, Baudrate select switch Pin #3, #4 should be switched on.

In order to make Bluetooth connection between two BM2001s, one should be MASTER and the opposite
side device should be SLAVE (Refer below picture).

Function Select Switch

Baud Rate Switch

Set Dip Switch to below picture.

i) MASTER

Function Switch

Baud Rate Switch

Setting

Role : Master
Baud Rate :9600 bps
Mode : DIP Switch

ii) SLAVE

Function Switch

Baud Rate Switch

Setting

Role : Slave
Baud Rate : 9600 bps
Mode : DIP Switch

[2] Attach BM2001 to each PC.

[3] Turn on the power switch.

- Turn on the power switch and BM2001will start working.

[4] Check on the BM2001’s power LED color is red and green.

- Power LED: Red Color - Power Status

Green Color – Recognized USB Status

[5] Check on the BM2001’s status LED color is green.

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

53

- If the Status LED is green, BM2001 is working for communication.

- If the Status LED is red, BM2001’s connection mdoe is Mode4. (Waiting for configuration)

[6] Run the hyper terminal at each PC. And then set the parameters as below picture.

[7] Enter the characters via keyboard at each PC in order to transmit the data between two PCs.

PC1

Full Duplex

Communication

PC2

[8] If users may see the characters on both windows, it means data communication both way

through BM2001s and setup is successful.

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

54

14.2 Communicate test at 115,200 bps

Product Test

Description

Required equipment

PC: 2 EA

BM2001 : 2 Set

Test Environment
PC: Power on / OS : Windows

Use USB Port for BM2001

Part

Default

(Before modification)

User Setup

(After modification)

Configuration

Value

Master /Slave Selection

Master or Slave

Master or Slave

Mode Selection

DIP Switch Mode
PC Configuration Mode

DIP Switch Mode
PC Configuration Mode

Baud Rate

115200 bps

115200 bps

Parity Bit

None

None

Stop Bit

1 Bit

1 Bit

Hardware Flow Control

None

None

* Baud rate is only changed.

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

55

Follow below step for product test.

[1] For Baudrate setup to 115,200bps, Baudrate select switch Pin #2, #3, #4 should be switched on.

In order to make Bluetooth connection between two BM2001s, one should be MASTER and the opposite
side device should be SLAVE (Refer below picture).

Function Select Switch

Baud Rate Select Switch

Set Dip Switch to below picture.

i) MASTER 로 설정하기

Function Switch

Baud Rate Switch

Setting

Role : Master
Baud Rate :115200 bps
Mode : DIP Switch

ii) SLAVE 로 설정하기

Function Switch

Baud Rate Switch

Setting

Role : Slave
Baud Rate : 115200 bps
Mode : DIP Switch

[2] Attach BM2001 to each PC.

[3] Turn on the power switch.

- Turn on the power switch and BM2001will start working.

[4] Check on the BM2001’s power LED color is red and green.

- Power LED: Red Color - Power Status

Green Color – Recognized USB Status

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

56

[5] Check on the BM2001’s status LED color is green.

- If the Status LED is green, BM2001 is working for communication.

- If the Status LED is red, BM2001’s connection mdoe is Mode4. (Waiting for configuration)

[6] Run the hyper terminal at each PC. And then set the parameters as below picture.

[7] Enter the characters via keyboard at each PC in order to transmit the data between two PCs.

PC1

Full Duplex

Communication

PC2

[8] If users may see the characters on both windows, it means data communication both way

through BM2001s and setup is successful.

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

57

15. AT Command

15.1 Definition of terminology

Device

“HOST” is side to control the bluetooth device with AT Command.

“Bluetooth module” is bluetooth device.

AT command

Bluetooth module provides the extended AT command set to control and configure the serial

parameters and bluetooth connection.

AT Response

Bluetooth module replies to AT commands with some messages,

“OK” , “ERROR” , “CONNECT”, “DISCONNECT” , “STANBY”, “PENDING”.

Connection MODE

BM2001 is waiting for AT Command on MODE4.

Operation Status

Standby: Waiting for AT Commands

Pending: Executing Tasks

Connect: Connected with the remote bluetooth device

Bypass: Transmitting data

Security

Authentication: PIN Code

Encryption: Data encryption

Symbols

The symbols are used for the description of command syntax as follows.

Symbol

Meaning

ASCII Code



Carriage return

OXOD

¶

Line feed

OXOA



Carriage return + Line feed

123456789012

Bluetooth device address

N One digit decimal number

T0

Timeout in second

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

58

Command Category

Command Category

Index

AT Commands

1

AT

Reset

2

ATZ

3

AT&F

Information

4

AT+BTINQ? 

5

AT+BTINFO?n

Connection

6

ATD123456789012

7

ATD

8

AT+BTSCAN

9

AT+BTSCAN,n,to

10

AT+BTSCAN123456789012,to

11

AT+BTCANCEL

12

+++

13

ATO

14

ATH

Setting

15

AT+BTSEC,Authentication,Encryption

16

AT+BTMODE,n

17

AT+BTNAME=Device name

18

AT+BTKEY=xxxx

19

AT+BTLPM,n

20

AT+SETESC,nn

21

AT+BTMSG,n

22

AT+BTROLE=x

23

AT+BTUART,b,p,s

24

AT+BTLT=xx

25

AT+BTADDR=123456789012

Setting AT commands need soft reset after change the setting of BM2001.

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

59

15.2 Description of AT COMMAND

1. AT 

Feature

Check the connection status with host device

Response

 OK 

Description

Check if the connection to host device is normal. The serial parameters of BM2001 must be same

as those of host device. If not bluetooth module is none or ‘ERROR’

2. ATZ 

Feature

Software reset

Response

 OK 

Description

This is the same effect as power off and on.

This command disconnects bluetooth module and stop ongoing task.

Some AT commands need this command to take effect.

3. AT&F

Feature

Hardware reset

Response

OK

Description

This is the same effect as initialization by reset button.

All parameters are initialized to factory defaults.

4. AT+BTINQ? 

Feature

Search for bluetooth devices around

Response

 <Bluetooth address>,<Device name>,<Cod> 

Description

The bluetooth devices in inquiry scan mode nearby are displayed with their BD address, Device

name and Class of device. Maximum 8 devices are scanned for 30 seconds.

After searching, response the ‘OK’ message.

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

60

5. AT+BTINFO?n 

Feature

BM2001 respond its settings information according to n

Response

<Device Name>

<Pin Code>,Authentication,Encryption 

<Remote Addr>

<Connection MODE>

<Baud rate>

<Status message>

<Power save mode>

<Role>

Description

Respond BM2001’s setting information according to n

N=0

Device name (Friendly name)

N=1

PIN code, Authentication and Encryption setting

N=2

The latest paired bluetooth device address

N=3

Operation Mode (MODE1 ~ 4)

N=4

Baud rate setting

N=5

Status message on, off status

N=6

Power save mode on, off status

N=7

Role < master or slave >

N=8

Local BD address

Ex)

AT+BTINFO?0 (Respond device name)
AT+BTINFO?  (Respond the operation status)

6. ATD 123456789012 

Feature

BM2001 try to connect to the bluetooth device has BD address “123456789012 “

Response

 OK 

 CONNECT  (success make connection with “123456789012”)

 ERROR  (fail to make connection)

Description

BM2001 try to connect to the bluetooth device has BD address “ 123456789012”.

The bluetooth device must be in page scan mode to make successful connection.

If it fails to make connection, BM2001 respond ‘ERROR’ message.

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

61

7. ATD

Feature

Connect to the last connected bluetooth device

Response

 OK 

 CONNECT  (Success make connection with the last connected bluetooth device)

 ERROR  (fail to make connection)

Description

BM2001 memory the BD address of the bluetooth device most recently connected.

ATD can make connection to it without its BD address.

If it fails to make connection, BM2001 respond ‘ERROR’ message.

If BM2001 has not Remote device BD address, it will respond the error message.

8. AT+BTSCAN 

Feature

Wait for inquiry and connection from other bluetooth devices.

Response

 OK 

 CONNECT  (Success make connection with other bluetooth device)

Description

This command allows the inquiry and connection from the other bluetooth devices. The

operation status will be in ‘Pending” after this command.

When connection is made and released, the operation status is back to ‘Pending’. To convert the

operation status to ‘Standby” AT+BTCANCEL must be used.

This has the same effect as AT+BTSCAN,3,0.

9. AT+BTSCAN,n,t0 

Feature

Wait for inquiry and connection from other bluetooth devices for t0 seconds.

Response

 OK 

 CONNECT  (Success make connection with other bluetooth device)

Description

BM2001 allow the inquiry or connection according to n.

N=1

Allows inquiry scan.

This option, BM2001 can’t connect with other bluetooth device.

N=2

Allow page scan.

Other bluetooth devices can’t search BM2001.

But Other bluetooth devices can connect with BM2001.

N=3

Allows both of inquiry scan and page scan.

For the given t0, BM2001 is waiting for the inquiry and connection from other Bluetooth devices.

If the t0 is 0, it will wait forever.

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

62

10. AT+BTSCAN123456789012,t0 

Feature

Wait for connect by the bluetooth device has BD address “123456789012” for t0 seconds

Response

OK 

CONNECT (Success make connection with remote device)

Description

For the given t0, BM2001 is waiting for connect by the bluetooth device has BD address

“123456789012”. If t0 is zero ‘0’, it will wait forever.

Not allow the inquire scan mode. Allow the page scan mode only.

11. AT+BTCANCEL 

Feature

Terminate a current executing task

Response

 OK 

Description

This command terminates a current executing task, such as inquiry scan and page scan, then

converts the operation status to ‘Standby’.

12. +++

Feature

Convert the operation status of ‘Bypass’ to ‘Standby’

Response

 OK 

Description

In ‘connect’ status, data from host is transmitted to the other side bluetooth device, and any

AT command is not accepted, but this command, which is not echoed on the screen.

When BM2001 encounters a character ‘+’ from host, it stop the data transmission and waits for

next 2 characters. If the next 2 characters aren’t both ‘+’, it restart to transmit data including

the first ‘+’ as well. If not, it converts the operation status to ‘Standby’.

If the data from host includes ‘+++’, it will convert the operation status to ‘Standby’

unexpectedly. Notice that BM2001 holds data transmission when it encounters ‘+’, until receiving

next character. ‘+’ is an escape sequence character by default, which is changeable by

AT+SETESC.

13. ATO

Feature

Converter the operation status of ‘Standby’ to ‘Bypass’

Response

OK 

Description

User can convert the operation status of ‘Standby’ to ‘Connect’ ready to transmit data.

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

63

14. ATH

Feature

Release the current connection

Response

 OK 

DISCONNECT

Description

The current Bluetooth connection is released normally.

15. AT+BTSEC, Authentication, Encryption 

Feature

Set authentication and data encryption

Response

 OK 

Parameters

Authentication=0 (disable), 1 (Enable - default)

Encryption= 0 (disable), 1 (Enable- default)

Description

If the authentication is enabling, the pin code must be set by AT+BTKEY command.

Data encryption cannot be used when authentication is disabling.

Ex

AT+BTSEC,1,1

16. AT+BTMODE,n 

Feature

Set connection Mode

Response

OK

Description

BM2001 has 4 connection modes. BM2001’s working is different on each connection mode.

N=1

MODE1

Try connection with the latest paired bluetooth device

N=2

MODE2

Master mode: Search for the bluetooth device has same pin code nearby

Slave mode: Inquiry scan and page scan mode

N=3

MODE3

Master mode: try connection with given BD address device

Slave mode: Inquiry scan and page scan mode

N=4

MODE4

Wait AT command
To take effect of this command ATZ or soft reset.

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

64

17. AT+BTNAME=device name 

Feature

Change BM2001’s device name

Response

 OK 

Description

BM2001 can have a user-friendly name to identify easily like “Rocket”. The name allows 12

alphanumeric characters maximum.

18. AT+BTKEY=XXXX 

Feature

Change PIN code of BM2001

Response

 OK 

Description

BM2001 can have a user-friendly name to identify easily like “Rocket”.

The name allows 12 alphanumeric characters maximum. (Default : “BTWIN”)

19. AT+BTLPM,n 

Feature

Set power save mode

Response

OK

Parameters

N=1 (Enable the power save mode)

N=0 (Disable the power save mode)

Description

During no data transmission, BM2001 can be in power save mode to save the power consumption.

When this option is enabling, it need wake-up time.

20. AT+SETESC,nn 

Feature

Change the escape sequence character

Response

OK

Description

Escape sequence character set to “+++” (default).

The parameter nn must be a printable character.

Ex

AT+SETESC,2B 

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

65

21. AT+BTMSG,n 

Feature

Status message on, off

Response

OK

Parameters

N=1 (Enable the status message)

N=0 (Disable the status message)

Description

Whenever BM2001 is powered up, BM2001 respond the status message,

“Master mode start”, “Slave mode start” and “connect <BD address>”.

If you don’t want them, disable this option.

22. AT+BTROLE=X 

Feature

Set BM2001’s role (Master or Slave)

Response

OK

Parameters

X=m  master mode

X=S  Slave mode

Description

If you want to search the bluetooth device, it has to be a master mode.

However, you want inquiry scan or page scan mode, it has to be a slave mode.

Ex

AT+BTROLE=M

23. AT+BTUART,Baudrate,Paritybit,Stopbit

Feature

Set serial parameters

Response

OK

Parameters

Baud rate range

1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200

Parity bit

NONE / EVEN / ODD

Stop bit

1 or 2

Description

The serial parameters can be set or changed. The default setting is 9600,N, 1

To take effect of this command, ATZ or reboot.

Ex

AT+BTUART, 57600,N,1

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

66

24. AT+BTLT=xx

Feature

Set the link supervisor time out cycle.

Response

OK

Description

Link manager layer check the connection status one given time (To).

User can set the cycle time (To) from 1 to 99 sec.

Default time is 20 sec.

Ex

AT+BTLT=20 

25. AT+BTADDR=xxxxxxxxxxxx 

Feature

Set the Remote bluetooth device address

Response

OK

Description

If you want to change the remote bluetooth device, you can use this command.

Ex

AT+BTADDR=123456789012 

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

67

15.3 Command Validity

NO

AT Command

STANDBY

PENDING

CONNECT

Bypass

1

AT

  

2

ATZ



③

3

AT&F



4

AT+BTINQ? 

①

5

AT+BTINFO?n

  

6

ATD123456789012

①

7

ATD

①

8

AT+BTSCAN

②

9

AT+BTSCAN,n,to

②

10

AT+BTSCAN123456789012,to



11

AT+BTCANCEL



12

+++



13

ATO



14

ATH



15

AT+BTSEC,Authentication,Encryption



16

AT+BTMODE,n



17

AT+BTNAME=Device name



18

AT+BTKEY=xxxx



19

AT+BTLPM,n



20

AT+SETESC,nn



21

AT+BTMSG,n



22

AT+BTROLE=x



23

AT+BTUART,b,p,s

 

24

AT+BTLT=xx



25

AT+BTADDR=xxxxxxxxxxxx 



① When role is master, can use it.

② When role is slave , can use it.

③ When use AT+BTUART,b,p,s command, can use it.

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

68

Firmtech.Co.,Ltd
Tel: [phone]~3 Fax: [phone]
Website: www.firmtech.co.kr
Mail : [e-mail]

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

69

Regulatory Compliance

FCC compliance Information

This device complies with part 15 of FCC Rules.

Operation is subject to the following two conditions:

1. This device may not cause harmful interference, and

2. This device must accept any interference received.

Including interference that may cause undesired operation.

Information to User

This equipment has been tested and found to comply with the limits for a Class B digital device,

Pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against

harmful interference in a residential installation.

This equipment generates, uses and can radiate radio Frequency energy and, if not installed and used in

accordance with the instructions, may cause harmful interference to radio communications. However,

there is no guarantee that interference will not occur in a particular installation. If this equipment does

cause harmful interference to radio or television reception, which can be determined by turning the

equipment off and on, the user is encouraged to try to correct the interference by one or more of the

following measures:

- Reorient or relocate the receiving antenna.

- Increase the separation between the equipment and receiver

- Connect the equipment into an outlet on a circuit different from that to which the receiver is

connected.

- Consult the dealer or an experienced radio/TV technician for help.

FCC WARNING

This equipment may generate or use radio frequency energy. Changes or modifications to this

equipment may cause harmful interference unless the modifications are expressly approved in the

instruction manual. The user could lose the authority to operate this equipment if an unauthorized

change or modification is made.

User information of CE compliance

Hereby, BTNetworks co., Ltd declares that this is Bluetooth serial adapter (BM2001) in compliance

with the essential requirements and other relevant provisions of Directive 1999/5/EC.

RF Exposure Information

The antenna used for this transmitter must be installed to provide a separation distance of at least 1.5

cm from all persons and must not be co-located or operating in conjunction with any other antenna or

transmitter.

Contact: Firmtech Co., Ltd. www.firmtech.co.kr [e-mail]

T. +82.31.719.4812 F. +82.31.719.4834 BM2001 User Manual ver3.7

70

Regulatory Compliance

User information of CE compliance

Hereby, BTNetworks co., Ltd declares that this is Bluetooth serial adapter (BM2001) in compliance

with the essential requirements and other relevant provisions of Directive 1999/5/EC.

RF Exposure Information

The antenna used for this transmitter must be installed to provide a separation distance of at least 1.5

cm from all persons and must not be co-located or operating in conjunction with any other antenna or

transmitter.