Firmtech FB153BC User manual

Bluetooth Embedded Module
FB153BC User Guide
Version 1.0
FIRMTECH Co., Ltd.
Homepage : http://www.firmtech.co.kr
Mail : [e-mail]
Tel : [phone]

FB153BC User Guide Version 1.0
Revision History
PAGE 2 / 15
Revision History
Revision
Date
Change Descriptions
Ver 1.0
2015-08-25
- Write a draft

FB153BC User Guide Version 1.0
(C) Copyright FIRMTECH Co., Ltd. 2005
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(C) Copyright FIRMTECH Co., Ltd. 2005
All rights reserved
The products and operation descriptions contained herein shall be protected by
copyright law.
Any part or whole of products or operation description shall not be copied, reproduced,
translated, nor transformed into readable form by electronic device or machines, without
prior consent in writing by FIRMTECH Co., Ltd.
There might be some misprinting or technical faults in the products and operation
description which are subject to change without prior notice.

FB153BC User Guide Version 1.0
List of Content
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List of Content
1 1 What is Bluetooth?........................................................................................................................................................5
1.1 Features of Bluetooth..........................................................................................................................................5
1.2 Operation of Bluetooth......................................................................................................................................5
2 Product Overview...............................................................................................................................................................6
3.1 FB153BC......................................................................................................................................................................7
3.2 PC Interface Kit (Option)...................................................................................................................................7
4 Product Appearance .........................................................................................................................................................8
4.1 FB153BC Dimension.............................................................................................................................................8
4.2 FB153BC PIN Assign ............................................................................................................................................8
5 Interface (Pin Connection).............................................................................................................................................9
6 PC Interface Board (Jig Board)................................................................................................................................. 10
7 Performance of Product .............................................................................................................................................. 11
8 Current Consumption.................................................................................................................................................... 12
9 Preliminary Product Components .......................................................................................................................... 12
10 AT Command................................................................................................................................................................... 13

FB153BC User Guide Version 1.0
1 1 What is Bluetooth?
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1 1 What is Bluetooth?
1.1 Features of Bluetooth
Objectives of Bluetooth : To Realize Wireless Communication for Short Distance with Low Power
Consumption, High Reliability, and Low Cost.
Frequency in Use: To Use ISM(Industrial, Scientific, Medical) Band which does not require any
permission to use.
-2.400 –2.4835 GHz, 79 channels
-2.465 –2.4835 GHz, 23 channels (in France)
Transmission Rate : 1Mbps ~ 3Mbps
Transmission Output : 1mW (10m, Class2), 100mW (100m Class1)
Network Configuration : Configured with Master and Slave relation. A Bluetooth unit shall allow
simultaneous connections up to 7 devices (in case of ACL).
Reliability : To Guarantee stable wireless communication even under severe noisy environment
through adopting the technique of FHSS (Frequency Hopping Spread Spectrum).
1.2 Operation of Bluetooth
<Feature 1-1 Bluetooth Operation>
Bluetooth operates based on the connection between “Master”and “Slave”.
Masters are simply supposed to do “Inquiry”and “Page”. Slaves are supposed to do “Inquiry Scan”
and “Page Scan”.
If a Master finds a Slave and so “inquiry”is successful, a Slave responds to the Master with its
information.
Interconnection between the Master and the Slave is achieved only if the information from the
Slave is corresponded with the Master, and the Slave sends data to the Master.

FB153BC User Guide Version 1.0
2 Product Overview
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2 Product Overview
FB153BC is a product with the frequently used basic functions of Bluetooth SPP having been
optimized so that users can use it easily.
Major Features of FB153BC
1. Bluetooth Specification 2.1 Support
2. Easily applicable to the Product with 8Pins Header type
3. When powered on, it automatically starts scan operation. -> Operates in the Mode 2 as a
slave device.
4. Supports the most basic AT commands only. (Baud rate, pin code, device name)
5. Easy to connect to use with Bluetooth PDA, Bluetooth USB Dongle, etc.
6. Provides the most compact size among Class 2 EDR.
7. Stable Data Transmission / Receipt
※We request the new users of FB153BC to read the information on this description carefully before
they start to use the products.

FB153BC User Guide Version 1.0
2 Product Overview
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3 Product Components
3.1 FB153BC
MODEL
PICTURE
Q'TY (EA)
FB153BC
(On-board Chip Antenna)
1
<Table 3-1 Basic Components of FB153BC>
3.2 PC Interface Kit (Option)
MODEL
PICTURE
Q'TY (EA)
FBZ153
(Interface Board)
1
<Table 3-2 Components of PC Interface Kit>
※If you find any of above components is defective, or not included in the package, please contact the seller
you purchased.

FB153BC User Guide Version 1.0
4 Product Appearance
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4 Product Appearance
4.1 FB153BC Dimension
<Figure 4-1 FB153BC Dimension>
4.2 FB153BC PIN Assign
<Figure 4-2 FB153BC PIN Assign>

FB153BC User Guide Version 1.0
5 Interface (Pin Connection)
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No.
Name of Signal
Features
I / O
Level
1
GND
Ground
2
VCC
3.3V DC
Input
3
STATUS
STATUS LED
Output
TTL
4
NC
-
5
NC
-
6
NC
-
7
TXD
Transfer Data (Data out)
Output
TTL
8
RXD
Received Data (Data in)
Input
TTL
<Table 4-1 Pin Description>
- STATUS port
To be used to monitor the status of FB153BC.
To keep LOW(0V) when the two devices are communicable since the connection between wireless range is
smoothly made.
In standby mode for connection with Bluetooth, or connection trial, or searching for around Bluetooth device
will repeat LOW and HIGH.
5 Interface (Pin Connection)
<Figure 5-1 Pin Connection>
FB153BC

FB153BC User Guide Version 1.0
6 PC Interface Board (Jig Board)
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6 PC Interface Board (Jig Board)
FB153BC Socket
A socket to install and uninstall FB153BC
(For an SMD product, remove the socket and manually install it.)
Status LED
LED to indicate general status.
Test Point
Allows users to directly check the control signal lines using an
oscillator, etc.
USB Interface
Allows users to easily connect to a PC via USB interface.

FB153BC User Guide Version 1.0
7 Performance of Product
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7 Performance of Product
No.
Part
Specification
1
Bluetooth Spec.
Bluetooth Specification 2.1 Support
2
Communication distance
10 M
3
Frequency Range
2402 ~ 2480 MHz ISM Band
4
Sensitivity
-83dBm (Typical)
5
Transmit Power
4dBm(Typical)
6
Size
18 x 20 mm
7
Support Bluetooth Profile
SPP (Serial Port Profile)
8
Input Power
3.3V
9
Current Consumption
48 mA (Max)
10
Temperature
Operating
-10℃ ~ 50℃
Limit Operating
-35℃ ~ 55℃
11
Communication Speed
1,200bps –115,200bps
12
Antenna
Chip Antenna
13
Interface
UART (TTL Level)
<Table 7-1 FB153BC Performance>

FB153BC User Guide Version 1.0
8 Current Consumption
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8 Current Consumption
Status
Current Consumption (mA)
MIN
MAX
AVG
Inquiry scan & Page scan
2
43
28
Connected
18
21
20
Data Transmission
26
30
28
Data Reception
24
29
26
Data Transmission/Reception
26
30
28
Power save
2
4
2
<Table 8-1 Current Consumption>
TEST CONDITIONS
Baud Rate : 9600 bps, Input Voltage : DC 5V
The power consumption will change depending on transmission speed and volume of data.
9 Preliminary Product Components
The preliminary value of product is set as on the <Table 9-1>.
Please be sure of basic set value and so on before using the product.
Type
Set Value
Device Name
FB153vx.x.x
Pin Code (Pass key)
0000
Uart (baud rate-data bit-parity bit-stop bit)
9600-8-N-1
ROLE
SLAVE (Fixing)
Connection Mode
MODE2 (Fixing)
<Table 9-1 Preliminary Configuration Setting Value for FB153BC>
FB153BC allows users to change the values of the most basic Bluetooth settings (Baud rate, pin code, device
name) using AT commands.

FB153BC User Guide Version 1.0
10 AT Command
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10 AT Command
The AT command explained below is input and output in ASCII characters. The command will be normally
acknowledged when <0x0D> (Carriage Return) is input together at the end of it.
To reply to the commands, always reply in the form of <0x0D><0x0A><Response value><0x0D><0x0A>.
Host : HOST refers to the devices which control the products of FIRMTECH Co., Ltd. through AT command.
FB153 : FB153 refers to the Bluetooth devices of FIRMTECH Co., Ltd.
Definition of SYMBOL
SYMBOL
MEANING
ASCII CODE

Carriage Return
0x0D

Carriage Return + Line Feed
0x0D + 0x0A
<Symbol Table>
AT
FEATURE
To verify if the HOST is connected to FB153 properly.
RESPONSE
OK
DESCRIPTION
If HOST and FB153 are connected properly, it will respond with “OK”.
If the connection is not made, no response is transmitted, or Abnormal text will be
transmitted.
EX
HOST FB153 : AT
FB153 HOST : OK
ATZ
FEATURE
Have FB153 software reset.
RESPONSE
OK
DESCRIPTION
The same effect as though the power of FB153 is re-authorized.
EX
HOST FB153 : ATZ
FB153 HOST : OK
(The device will be reset in about 2 seconds after OK is output.)
AT&F
FEATURE
To Reset the hardware.
RESPONSE
OK
DESCRIPTION
After this command is used, all the values of PC Configuration shall change to
factory set value.
EX
HOST FB153 : AT&F
FB153 HOST : OK
(The device will be reset in about 2 seconds after OK is output.)

FB153BC User Guide Version 1.0
10 AT Command
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AT+BTUART?
FEATURE
Check the current setting value for serial communication of the FB153 device.
RESPONSE
Communication Speed
DESCRIPTION
Check the current communication speed of the FB153 device.
EX
HOST FB153 : AT+BTUART?
FB153 HOST : 9600
AT+BTUART=
FEATURE
To Change the set value of serial communication of FB153.
RESPONSE
OK
DESCRIPTION
The setting value can be changed to 1200, 2400, 4800, 9600, 19200, 38400,
57600 or 115200.
EX
HOST FB153 : AT+BTUART=115200
FB153 HOST : OK
AT+BTKEY?
FEATURE
Check the current pin code of the FB153 device.
RESPONSE
Pin Code
DESCRIPTION
Currently, check the current pin code of the FB153 device.
EX
HOST FB153 : AT+BTKEY?
FB153 HOST : 0000
AT+BTKEY=
FEATURE
To change the Pin Code of FB153.
RESPONSE
OK
DESCRIPTION
The PIN code shall be consisted of text row, up to 12 alphanumeric character could
be used.
EX
HOST FB153 : AT+BTKEY=1234
FB153 HOST : OK
AT+BTNAME?
FEATURE
Check the current device name of the FB153 device.
RESPONSE
Device Name
DESCRIPTION
Currently, check the current device name of the FB153 device.
EX
HOST FB153 : AT+BTNAME?
FB153 HOST : FB153 vx.x.x
AT+BTNAME=
FEATURE
To change the name of FB153 devices.
RESPONSE
OK
DESCRIPTION
To allow BT with name easily identifiable by user.

FB153BC User Guide Version 1.0
10 AT Command
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This name can be used in other Bluetooth devices to search for Bluetooth devices. Up
to 12 alphanumeric characters could be used.
EX
HOST FB153 : AT+BTNAME=FIRMTECH
FB153 HOST : OK