ICPDAS BLE-USB User Manual

BLE-USB

USB to Bluetooth Low Energy Converter

User Manual v1.0

www.icpdas.com

BLE-USB, USB to Bluetooth Low Energy Converter (Ver. 1.0, Oct/6/2016) 1

Version

Author

Date

Note

1.0

Jack

2016/9/20

Release version

Warranty

All products manufactured by ICP DAS are under warranty regarding
defective materials for a period of one year from the date of delivery to the
original purchaser.

Warning

ICP DAS assumes no liability for damages resulting from the use of this
product. ICP DAS reserves the right to change this manual at any time without
notice. The information furnished by ICP DAS is believed to be accurate and
reliable. However, no responsibility is assumed by ICP DAS for its use, or for any
infringements of patents or other rights of third parties resulting from its use.

Copyright

Copyright 2016 by ICP DAS. All rights are reserved.

Trademark

The names used for identification only may be registered trademarks of their

respective companies.

Technical Support

If you have any problems, feel free to contact us via e-mail at

[e-mail]

Document Revision

BLE-USB, USB to Bluetooth Low Energy Converter (Ver. 1.0, Oct/6/2016) 2

Content

1. INTRODUCTION ..................................................................................................................................... 5

1.1 FEATURES ................................................................................................................................................ 6

1.2 APPLICATIONS .......................................................................................................................................... 6

1.3 TRANSMISSION MODE .............................................................................................................................. 6

1.3.1 Broadcast Mode .................................................................................................................................. 7

1.3.2 Connection Mode ................................................................................................................................ 7

1.4 OPERATION MODE.................................................................................................................................... 8

1.5 BLUETOOTH LE ROLE .............................................................................................................................. 8

1.5.1 Master and Slave ................................................................................................................................ 9

1.5.2 Broadcaster and Observer .................................................................................................................. 9

1.6 MASTER IDENTIFICATION MECHANISM .................................................................................................. 10

2. HARDWARE .......................................................................................................................................... 11

2.1 SPECIFICATIONS ..................................................................................................................................... 11

2.2 BLE-USB FRONT VIEW ......................................................................................................................... 12

2.2.1 LED Indicator ................................................................................................................................... 12

2.2.2 USB type-A plug................................................................................................................................ 14

2.3 DIMENSIONS ........................................................................................................................................... 14

3. SOFTWARE ........................................................................................................................................... 15

3.1 THE AT COMMAND ................................................................................................................................ 15

3.1.1 The AT Command syntax .................................................................................................................. 15

3.1.2 List of AT Command ......................................................................................................................... 16

3.1.3 +++ .................................................................................................................................................. 17

3.1.4 AT ...................................................................................................................................................... 18

3.1.5 ATE ................................................................................................................................................... 18

3.1.6 AT+BC .............................................................................................................................................. 19

3.1.7 AT+BR .............................................................................................................................................. 20

3.1.8 AT+CL .............................................................................................................................................. 22

3.1.9 AT+CN .............................................................................................................................................. 23

3.1.10 AT+DI .......................................................................................................................................... 24

3.1.11 AT+FC ......................................................................................................................................... 25

3.1.12 AT+LA ......................................................................................................................................... 26

3.1.13 AT+PN ......................................................................................................................................... 27

3.1.14 AT+SFR ....................................................................................................................................... 28

3.1.15 AT+SDN ....................................................................................................................................... 29

3.1.16 AT+GID ....................................................................................................................................... 30

BLE-USB, USB to Bluetooth Low Energy Converter (Ver. 1.0, Oct/6/2016) 3

3.1.17 AT+TPL ....................................................................................................................................... 32

3.1.18 AT+BCIV ..................................................................................................................................... 33

3.1.19 AT+COML ................................................................................................................................... 34

3.1.20 AT+ROLE .................................................................................................................................... 36

3.1.21 AT+EKEY .................................................................................................................................... 38

3.1.22 AT+SKEY ..................................................................................................................................... 39

3.1.23 AT+SMODE ................................................................................................................................. 41

3.1.24 AT+BCROLE ............................................................................................................................... 42

3.1.25 Error Code Table ......................................................................................................................... 44

3.2 THE BROADCAST MODE COMMAND ....................................................................................................... 44

3.2.1 +ADV ................................................................................................................................................ 45

3.2.2 +ADS ................................................................................................................................................ 46

3.2.3 +ADP ................................................................................................................................................ 47

3.2.4 +ADR ................................................................................................................................................ 47

4. CONFIGURATION UTILITY ............................................................................................................... 49

4.1 MAIN WINDOW OF TBLE-720/BLE-USB UTILITY ................................................................................ 49

4.2 SET CONFIGURATION ON UTILITY .......................................................................................................... 49

4.2.1 Basic Parameter Setting Page .......................................................................................................... 50

4.2.2 Recovery Factory Setting Page ......................................................................................................... 54

4.3 TEST MODULE ON UTILITY..................................................................................................................... 54

4.3.1 Connection Mode .............................................................................................................................. 54

4.3.2 Broadcast Mode ................................................................................................................................ 58

4.4 FIRMWARE UPGRADE ON UTILITY .......................................................................................................... 60

5. TECHNICAL SUPPORT........................................................................................................................ 65

BLE-USB, USB to Bluetooth Low Energy Converter (Ver. 1.0, Oct/6/2016) 4

1. Introduction

The BLE-USB module is small-sized wireless Bluetooth low energy (LE) converter based on
the Bluetooth 4.0 standard that allow USB interface to be converted to Bluetooth LE piconet
network. The BLE-USB has two transmission modes – advertisement and connection mode.
Users not only can send advertising packet in the advertisement mode but also can send
connection packet in the connection mode. It supports different roles in each transmission mode.
One is broadcaster and observer in advertisement mode and the others is master and slave in
connection mode. User can use AT command to setup the BLE-USB. The AT command not
only can set role of Bluetooth LE, but also it can set some connection parameters (e.g. RF
power level, broadcast parameters and slave amount).

The BLE-USB also provide slave security mechanism. The mechanism can obstruct illegal
master, and the slave will ignore connection request from illegal master. In addition, ICPDAS
provides software utility to easily configure and test the BLE-USB modules via USB.

Figure 1-1. The application architecture of BLE-USB

BLE-USB, USB to Bluetooth Low Energy Converter (Ver. 1.0, Oct/6/2016) 5

1.1 Features

[BLE-USB]

 Frequency: ISM 2.4 GHz
 Standard: Bluetooth 4.0
 Fully Compliant with the USB 1.1/2.0 (High Speed)
 Baud Rate :9600~115200 bps
 Operating Temperatures: -25 °C ~ +75 °C
 Supports multiple connections – Max slave is 3
 Supports two types of communication- advertisements and connection
 Provides AT commands to setup the module
 Provides status / RF link indication LEDs
 GUI Configuration Software (Windows Version)
 No External Power Supply and Antenna required

[BLE Utility]

ICP DAS provides the BLE-USB configuration utility for Windows OS.

 Parameters configuration
 Firmware upgrade
 Easy test to transmit/receive
 Setting files management

1.2 Applications

 Building Automation
 Factory Automation
 Machine Automation
 Home Maintenance

1.3 Transmission Mode

The transmission mode of BLE-USB can divide into two categories: Broadcast and connection.
Each mode had different roles. The Broadcaster/Observer (scanner) used in the broadcast mode.
The Master/Slave was used in the connection mode.

BLE-USB, USB to Bluetooth Low Energy Converter (Ver. 1.0, Oct/6/2016) 6

A

B

7

3

Group ID = 1Group ID = 2

4

5

10

9

8

2

1

6

Broadcaster

Observer

1.3.1 Broadcast Mode

The broadcast mode is the new features in the Bluetooth LE. The Bluetooth LE
Broadcaster device broadcasts packets to every device around it. The Bluetooth LE
Observer device can receive the information without connection. The BLE-USB supports
another feature in broadcaster mode. The Broadcaster and Observer (refer to 1.5.2) had an
identification ID, and it call “Group ID”. The “Group ID” (refer to 3.1.16) parameter
specifies the logical group identity for BLE-USB devices, and each BLE-USB module
must be set to the same value if it is in the same group as other modules.

The schematic diagram of broadcast mode was shown in Figure 1-2. It had two
broadcasters and ten observers. The Observer 1~5 can receive packet from broadcaster A.
The Observer 6~10 can receive packet from broadcaster B. The Observer 1~5 can receive
the information without connection. The Observer 1 also can receive packet from
broadcaster B, but the Observer 1 only can receive packet from broadcaster A because the
Group ID is different.

Figure 1-2. The schematic diagram of BLE-USB

1.3.2 Connection Mode

The connection mode need make a connection before packet exchange. The slave will
broadcast after power on. If the master receive broadcast packet from the Slave and it will
send connection request to the Slave. The Slave can connect to one Master unless it
disconnect with current Master. The Master can connect with three Slaves. If the number
of slave connections was reached to 3. The Master will not send connection request unless
the connections was less than 3. The Slave and Master also had “Group ID” (refer to

3.1.16). The Slave and Master must be set to same “Group ID”, and the Master will send

connection request to the Slave. The Slave had a master identification mechanism. The

BLE-USB, USB to Bluetooth Low Energy Converter (Ver. 1.0, Oct/6/2016) 7

5

3

Group ID = 1Group ID = 2

6

2

1

4

Master

Slave

B

A

initialization

mode

transmission

mode

AT command

mode

“+++<CR>”

“ATE<CR>”

After 50 sec

Slave receive connection request from Master. If the illegal Master was connected to the
Slave, and then the Slave will be disconnect from Master. The master identification
mechanism can disable by AT command.

The schematic diagram of broadcast mode was shown in Figure 1-3. It had two Masters
and six Slaves. The Master A will connect to the Slave 1~3, and the Master B will connect
to the Slave 4~6. The Slave 1 is in the commutation range of Master B, but the Master will
not send the connection request to the Slave 1 because the Group ID is different.

Figure 1-3. The schematic diagram of BLE-USB

1.4 Operation Mode

The module will in the initialization mode after power on. If the initialization was success, and
the module will went to the transmission mode. The module can send data or it can receive the
data in the transmission mode. User sends the “+++<CR>” to the module. It will go to the AT
command mode. The module will be in the AT command mode until 50 second without any
commands or send the “ATE<CR>”. The AT command mode can refer to 3.13.1.

Figure 1-4. The block diagram of operation mode

1.5 Bluetooth LE Role

BLE-USB, USB to Bluetooth Low Energy Converter (Ver. 1.0, Oct/6/2016) 8

The Bluetooth Low Energy (LE) had four roles. The roles are Master (Central), Slave
(Peripheral), Broadcaster and Observer. The Master and slave had used in the connection mode.

Master

(Central)

Slave

(Peripheral)

Slave

(Peripheral)

Scan

Broadcast packet

Connection Request

Link establish

Broadcast packet

Scan

Broadcast packet

Connection Request

Link establish

The Broadcaster and Observer has used in the broadcast mode.

1.5.1 Master and Slave

First, there is the concept of Master (Central)/ Slave (Peripheral), which has to do with
establishing a link. This is also known as the GAP role. A Peripheral can advertise, to let other
devices know that it's there, but it's only a Central that can send a connection request to
establish a connection. When a link has been established, the Central is also called a Master,
while the Peripheral could be called a Slave. The Slave only can connect to a Master, but the
Master can connect to three Slaves in our module. The Slave will not be sending broadcast
packet after link has been established.

Figure 1-5. The workflow of Bluetooth LE connection

The Slave has two broadcast patterns. One is the high discoverable mode. The other is low
discoverable mode. The Slave will be broadcasting for 30 second in high discoverable mode,
and the broadcast interval is 20ms for 3 channels. The Slave will be broadcasting for 60 second
in low discoverable mode, and the broadcast interval is 640ms for 3 channels. The Slave will in
the high discoverable mode after power on. If the Slave didn’t received connection request from
the Master in high discoverable mode and it will switch to low discoverable mode.

1.5.2 Broadcaster and Observer

The Broadcaster does so by constantly advertising, and the Broadcaster usually has useful data
in the advertising packet. The advertising packet is meant for everyone to see. The Broadcaster
is broadcasting to others, so it never accepts connections. The Observer is the opposite of the

BLE-USB, USB to Bluetooth Low Energy Converter (Ver. 1.0, Oct/6/2016) 9

Broadcaster ObserverObserver

Broadcast packet

Scan

Scan

Scan

Scan

Scan

Broadcast packet

Broadcast packetBroadcast packet

Didn’t receive

packet

Didn’t receive

packet

Master

(Central)

Slave

(Peripheral)

Slave

(Peripheral)

Link establish

identification packet

Connection Request

disconnect

Packet incorrect

identification packet

Link establish

Packet correct

Broadcaster: it passively listens to BLE devices in its area and processes the data from the
advertising packets it receives.

Figure 1-6. The workflow of Bluetooth LE broadcast

1.6 Master Identification Mechanism

The Slave had a master identification mechanism. The Master will send identification packet to
the Slave. The Slave will check the identification packet that the identification packet was
incorrect. The Slave will disconnect with the Master. The feature can enable by AT command
(refer to 3.1.21).

Figure 1-7. The architecture of master identification mechanism

BLE-USB, USB to Bluetooth Low Energy Converter (Ver. 1.0, Oct/6/2016) 10

Hardware

LED indication

Status / RF link

RF Specification

Frequency Band

2.4 GHz ISM(2402~2480 MHz)

Tx power

-20~4 dBm

Rx sensitivity

-94 dBm

Antenna type

1.0 dBi chip antenna

Transmit Range

30 m

RF data rate

85 kbps

Max. Slaves Supported

3

Bluetooth LE Stack

Stack Version

Bluetooth 4.0

Connection Role

Master/Slave – connection mode

Observer /Broadcaster – broadcast mode

Communication Interface

Interface

USB 2.0

USB

Connector

Type-A Plug

Compatibility

USB 1.1 and 2.0 standard

Driver Support

Windows 98/2000/XP/Vista/7/10

WinPAC (WinCE6.0/7.0)

LinPAC (Linux kernel 3.0.0-19)

Baud Rate

9600~115200 bps

Data Format

N,8,1

Power

Operating Voltage

USB Socket Powered

Power Consumption

0.1 W (Max.)

Mechanical

Casing

Plastic

Dimensions (L x W x H)

58.4 mm x 19.8 mm x 9 mm

Environment

Operating Temperature

-25 ~ +75°C

Storage Temperature

-25 ~ +75°C

Relative Humidity

5 ~ 95% RH, Non-condensing

2. Hardware

2.1 Specifications

BLE-USB, USB to Bluetooth Low Energy Converter (Ver. 1.0, Oct/6/2016) 11

LED Indicator

LED Color

Description

RF Link

Green

The connection status of Bluetooth LE

Status

Red

The module status of BLE-USB

Master

LED Indicator

Status

Description

RF Link
Steady Lit

Connect to all salves

Blink (1 s)

Connect to slave, but not connect to
all slaves

Blink (200 ms)

Not connect to slave

Status

Steady Lit

Module initializes success(only
turn on for 3 second after power
on)

Blink (50 ms)

Module initializes fail(keep turn
on)

Blink (200 ms)

Temporary Buffer was full

Blink (50 ms)

RF receive data (flash once)

RF Link LED(Green)

Status LED(Red)

USB Type-A

2.2 BLE-USB Front View

Figure 2-1. Front View of BLE-USB

2.2.1 LED Indicator

The LED had different pattern in the connection and broadcast mode.
 Connection mode

The RF link LED will blink for 3 second after BLE-USB power on, and the status LED
also will turn on for 3 second. The connection had two roles – master and slave. Each role
had different LED pattern. The LED pattern was shown in following table:

BLE-USB, USB to Bluetooth Low Energy Converter (Ver. 1.0, Oct/6/2016) 12

Slave

LED Indicator

Status

Description

RF Link

Steady Lit

RF signal is good (RSSI is greater than ­60 dBm)

Blink (1 s)

RF signal is normal (RSSI is between -61
and -80 dBm)

Blink (2 s)

RF signal is bad (RSSI is between t-81
and -100 dBm)

Blink (200 ms)

Not connect to master

Status

Steady Lit

Module initializes success(only turn on
for 3 second after power on)

Blink (50 ms)

Module initializes fail(keep turn on)

Blink (200 ms)

Temporary Buffer was full

Blink (50 ms)

RF receive data (flash once)

Broadcaster

LED Indicator

Status

Description

RF Link

Steady Lit

The RF Link LED will keep on in the
broadcast mode

Status

Steady Lit

Module initializes success(only turn on
for 3 second after power on)

Blink (50 ms)

Module initializes fail(keep turn on)

Blink (1 s)

Broadcast is start

Blink (2 s)

Broadcast is stop

Observer (scanner)

LED Indicator

Status

Description

RF Link

Steady Lit

The RF Link LED will keep on in the
broadcast mode

Status
Radiate (ON)

Module initializes success(only turn on
for 3 second after power on)

Blink (50 ms)

Module initializes fail(keep turn on)

Blink (50 ms)

RF receive data (flash once)

 Broadcast mode

The RF link LED and status LED will turn on for 3 second after BLE-USB power on. The
connection had two roles – broadcaster and observer (scanner). Each role had different LED
pattern. The LED pattern was show in following table:

BLE-USB, USB to Bluetooth Low Energy Converter (Ver. 1.0, Oct/6/2016) 13

Top View

Bottom View

Rear ViewRight View

Front ViewLeft View

Uint:mm

2.2.2 USB type-A plug

The port is used to configure BLE-USB, communicate with other BLE modules and be
powered via the USB socket.

2.3 Dimensions

Figure 2-2. Dimensions of BLE-USB

BLE-USB, USB to Bluetooth Low Energy Converter (Ver. 1.0, Oct/6/2016) 14

Type “+++<CR>”to

enter AT command

mode

Type AT command

AT+XXX=YYY<CR>

(Write command)

Type “ATE<CR> to leave AT

command mode

Auto leave AT command

without any command after

50 second

3. Software

3.1 The AT Command

3.1.1 The AT Command syntax

The AT commands help users to control or get the information of BLE-USB. The prefix “AT+”
must be included at the beginning of each command line (except +++, AT and ATE), and
the character <CR> is used to finish a command line. When the application would like to send a
series of AT commands, leave a pause between the preceding and the following command until
information responses (e.g. “OK”). In the present document, AT commands can divide into
four types: Write Command, Read Command, Test Command and Execution Command. If the
AT command isn’t exist or syntax error, and the BLE-USB would be reply error code. All of
AT commands will valid when the module was entering to the AT command mode (except
+++). The correct flow of AT command was shown in Figure 3-1.

Figure 3-1. The flow of AT command

1. Write Command

The write command can write configure to the BLE-USB. The format of write command is

“AT+XXX=YYY<CR>”.The “AT+” is a beginning in the command, and the “XXX” is

command name, and the “YYY” is a parameter, and the<CR> is end of the command. The

syntax or parameter was incorrect and the BLE-USB would be reply error code. The user didn’t
reset configure again because all of configure will be save in the local memory after receive
write command.

2. Read Command

The read command can read configure from the BLE USB. The format of read command is
“AT+XXX?<CR>”.The “AT+” is a beginning in the command, and the “XXX” is command

BLE-USB, USB to Bluetooth Low Energy Converter (Ver. 1.0, Oct/6/2016) 15

Command Name

Write

Read

Test

Execution

Description

Section

+++<CR>

✘ ✘ ✘

✔

Enter to AT command mode

3.1.3

AT<CR>

✘ ✘ ✘

✔

Test command

3.1.4

ATE<CR>

✘ ✘ ✘

✔

Leave AT command mode

3.1.5

AT+BC<CR>

✔ ✔ ✔

✘

Broadcast Channel

3.1.6

AT+BR<CR>

✔ ✔ ✔

✘

Baud rate

3.1.7

AT+CL<CR>

✘ ✔ ✔

✘

Connection list

3.1.8

AT+CN<CR>

✘ ✔ ✔

✘

Connection amount

3.1.9

AT+DI<CR>

✘ ✔ ✔

✘

Device information

3.1.10

✽AT+FC<CR

✘ ✘ ✔

✔

Factory setting

3.1.11

AT+LA<CR>

✘ ✔ ✔

✘

Local address

3.1.12

✽AT+PN<CR>

✔ ✔ ✔

✘

Peer amount

3.1.13

✽AT+SFR<CR>

✘ ✘ ✔

✔

Software reset

3.1.14

name, and the “?” is read command, and the<CR> is end of the command.

3. Test Command

The test command can examine the syntax of command and give the information about the
command parameter. The format of test command is “AT+XXX=?<CR>”.The “AT+” is a

beginning in the command, and the “XXX” is command name, and the “=?” is test command,

and the<CR> is end of the command. All of AT commands supports the test command. If the
syntax of command is correct. The BLE-USB would be reply “OK<CR><LF>”.

4. Execution Command

The execution command can execute some functions (e.g. reset the module). The format of test

command is “AT+XXX<CR>”.The “AT+” is a beginning in the command, and the “XXX” is

command name, and the<CR> is end of the command.

3.1.2 List of AT Command

The BLE-USB supports AT commands. The command list was shown in the Table 3-1.

Table 3-1. List of AT command

BLE-USB, USB to Bluetooth Low Energy Converter (Ver. 1.0, Oct/6/2016) 16

Command Name

Write

Read

Test

Execution

Description

Section

AT+SDN<CR>

✔ ✔ ✔

✘

Slave device number

3.1.15

AT+GID<CR>

✔ ✔ ✔

✘

Group ID

3.1.16

AT+TPL<CR>

✔ ✔ ✔

✘

RF power level

3.1.17

AT+BCIV<CR>

✔ ✔ ✔

✘

Broadcast interval

3.1.18

AT+COML<CR>

✘ ✘ ✔

✔

Command list

3.1.19

✽AT+ROLE<CR>

✔ ✔ ✔

✘

Connection role

3.1.20

AT+EKEY<CR>

✔ ✔ ✔

✘

Enable master identification
mechanism

3.1.21

✽AT+SKEY<CR>

✔ ✔ ✔

✘

Set master identification key

3.1.22

✽AT+SMODE<CR>

✔ ✔ ✔

✘

Transmission mode

3.1.23

✽AT+BCROLE<CR>

✔ ✔ ✔

✘

Broadcast role

3.1.24

Execution command

Response

+++<CR>

Enter to AT mode<CR><LF>

+++<CR>

Enter to AT mode<CR><LF>

✽: The write or execution command will reset the module.

3.1.3 +++

(1) Description

This command is used to set module into the AT command mode.

(2) Syntax

(3) Example

BLE-USB, USB to Bluetooth Low Energy Converter (Ver. 1.0, Oct/6/2016) 17

Execution command

Response

AT<CR>

OK<CR><LF>

AT<CR>

OK<CR><LF>

AT
AT<CR>

Error: 05<CR><LF> (refer to 3.1.25)

Execution command

Response

ATE<CR>

OK<CR><LF>

ATE<CR>

OK<CR><LF>

3.1.4 AT

(1) Description

This command is used for testing module when the module had entered to the AT command
mode.

(2) Syntax

(3) Example

3.1.5 ATE

(1) Description

This command is used to leave the AT command mode.

(2) Syntax

(3) Example

BLE-USB, USB to Bluetooth Low Energy Converter (Ver. 1.0, Oct/6/2016) 18

Write Command

Response

AT+BC=<channel><CR>

OK<CR><LF>
Error: 01<CR><LF> (refer to 3.1.25)

Read Command

Response

AT+BC?<CR>

+BC: <channel><CR><LF>
OK<CR><LF>

Test Command

Response

AT+BC=?<CR>

+BC: 0~3<CR><LF>
OK<CR><LF>

<channel>

0: CH 37 (2402 MHz)
1: CH 38 (2426 MHz)
2: CH 39 (2480 MHz)
3: CH 37~39
Default: 3

AT+BC=1<CR>

OK<CR><LF>

AT+BC?<CR>

3.1.6 AT+BC

(1) Description

The Bluetooth LE used 3 channels (CH37~39) for frequency hopping in broadcast mode.
This command allow user to change the broadcast channel when the module was in the
broadcast mode. User can choose one channel for broadcasting, or choose three channels for
broadcasting. The command only change the broadcast command in the broadcast mode,
and the broadcast will not be change in the connection mode.

(2) Syntax

(3) Parameter

(4) Example

BLE-USB, USB to Bluetooth Low Energy Converter (Ver. 1.0, Oct/6/2016) 19

+BC: 1 <CR><LF>

OK<CR><LF>

AT+BC=7<CR>

Error: 01<CR><LF> (refer to 3.1.25)

AT+BC=?<CR>

+BC: 0~3<CR><LF>

OK<CR><LF>

AT+BC<CR>

Error: 04<CR><LF> (refer to 3.1.25)

Write Command

Response

AT+BR=<baud rate><CR>

OK<CR><LF>
Error: 01<CR><LF> (refer to 3.1.25)

Read Command

Response

AT+BR?<CR>

+BR: <baud rate><CR><LF>
OK<CR><LF>

Test Command

Response

AT+BR=?<CR>

+BR: 0~5<CR><LF>
OK<CR><LF>

3.1.7 AT+BR

(1) Description

This command is used to change the baud rate of module.

(2) Syntax

BLE-USB, USB to Bluetooth Low Energy Converter (Ver. 1.0, Oct/6/2016) 20

<baud rate>

0: 115200
1: 57600
2: 38400
3: 19200
4: 9600
Default: 0

AT+BR=1<CR>

OK<CR><LF>

AT+BR?<CR>

+BR: 1<CR><LF>
OK<CR><LF>

AT+BR=7<CR>

Error: 01<CR><LF> (refer to 3.1.25)

AT+BR=?<CR>
+BR: 0~3<CR><LF>

OK<CR><LF>

AT+BR<CR>

Error: 04<CR><LF> (refer to 3.1.25)

(3) Parameter

(4) Example

BLE-USB, USB to Bluetooth Low Energy Converter (Ver. 1.0, Oct/6/2016) 21

Read Command

Response

AT+CL?<CR>

+CL: <mac address>,<RSSI><CR><LF>
OK<CR><LF>

Test Command

Response

AT+CL=?<CR>

+CL: ADDRESS,RSSI<CR><LF>
OK<CR><LF>

<mac address>

6 Byte MAC address
Range: 000DE06D0000 ~ 000DE06DFFFF
0: not connect to peer device

<RSSI >

RSSI(Received Signal Strength Indicator) of peer device
AT+CL?<CR>

+CL: 0<CR><LF> (not connect to peer device)
OK<CR><LF>

AT+CL?<CR>

+CL: 000DE06D001F,-61<CR><LF>
OK<CR><LF>

AT+CL?<CR>

+CL: 000DE06D001F,-61<CR><LF>
+CL: 000DE06D0003,-55<CR><LF>
OK<CR><LF>

3.1.8 AT+CL

(1) Description

This command is used to query which device was connected in connection mode.

(2) Syntax

(3) Parameter

(4) Example

BLE-USB, USB to Bluetooth Low Energy Converter (Ver. 1.0, Oct/6/2016) 22

AT+CL=?<CR>

+CL: ADDRESS,RSSI<CR><LF>
OK<CR><LF>

AT+CL=1<CR>

Error: 03<CR><LF> (refer to 3.1.25)

AT+CL<CR>

Error: 04<CR><LF> (refer to 3.1.25)

Read Command

Response

AT+CN?<CR>

+CN: <amount><CR><LF>
OK<CR><LF>

Test Command

Response

AT+CN=?<CR>

+CN: 1~3<CR><LF>
OK<CR><LF>

<amount>

Peer device amount
Range: 1~3

AT+CN?<CR>

+CN: 0<CR><LF> (not connect to any peer)
OK<CR><LF>

3.1.9 AT+CN

(1) Description

This command can show how many peer devices had connected into itself.

(2) Syntax

(3) Parameter

(4) Example

BLE-USB, USB to Bluetooth Low Energy Converter (Ver. 1.0, Oct/6/2016) 23

AT+CN?<CR>

+CN: 1<CR><LF>
OK<CR><LF>

AT+CN=?<CR>

+CN: 0 <CR><LF>
OK<CR><LF>

AT+CN=1<CR>

Error: 03<CR><LF> (refer to 3.1.25)

AT+CN<CR>

Error: 04<CR><LF> (refer to 3.1.25)

Read Command

Response

AT+DI?<CR>

Manufacturer: <manufacturer>

Firmware Version: <version>
BLE Version: <stack version>
OK<CR><LF>

Test Command

Response

AT+DI=?<CR>

OK<CR><LF>

<manufacturer>

The identification of manufacturer.

<version>

The identification of firmware version.

<stack version>

The identification of Bluetooth LE stack version.

3.1.10 AT+DI

(1) Description

This command can show the device information.

(2) Syntax

(3) Parameter

BLE-USB, USB to Bluetooth Low Energy Converter (Ver. 1.0, Oct/6/2016) 24

AT+DI=?<CR>

OK<CR><LF>

AT+DI?<CR>

Manufacturer: ICDPAS<CR><LF>
Firmware Version: 1.0<CR><LF>
BLE Version: 4.0<CR><LF>
OK<CR><LF>

AT+DI=1<CR>

Error: 03<CR><LF> (refer to 3.1.25)

AT+DI<CR>

Error: 04<CR><LF> (refer to 3.1.25)

Execution Command

Response

AT+FC<CR>

OK<CR><LF>

Test Command

Response

AT+FC=?<CR>

OK<CR><LF>

AT+FC=?<CR>

OK<CR><LF>

AT+FC?<CR>

OK<CR><LF>

(4) Example

3.1.11 AT+FC

(1) Description

This command allows users for recovering module to factory setting and resetting the
module after 500 ms. All of the parameters will be reset to default value.

(2) Syntax

(3) Example

BLE-USB, USB to Bluetooth Low Energy Converter (Ver. 1.0, Oct/6/2016) 25

AT+FC=1<CR>

Error: 03<CR><LF> (refer to 3.1.25)

AT+FC?<CR>

Error: 02<CR><LF> (refer to 3.1.25)

Read Command

Response

AT+LA?<CR>

+LA: <mac address><CR><LF>
OK<CR><LF>

Test Command

Response

AT+LA=?<CR>

+LA: ADDRESS<CR><LF>
OK<CR><LF>

<mac address>

6 Byte MAC address
Range: 000DE06D0000 ~ 000DE06DFFFF

AT+LA?<CR>

+LA: 000DE06D0013<CR><LF>
OK<CR><LF>

AT+LA=?<CR>

+LA: ADDRESS<CR><LF>
OK<CR><LF>

AT+LA=1<CR>

Error: 03<CR><LF> (refer to 3.1.25)

AT+LA<CR>

Error: 04<CR><LF> (refer to 3.1.25)

3.1.12 AT+LA

(1) Description

This command is used to show the address of local device.

(2) Syntax

(3) Parameter

(4) Example

BLE-USB, USB to Bluetooth Low Energy Converter (Ver. 1.0, Oct/6/2016) 26

Write Command

Response

AT+PN=<amount><CR>

OK<CR>
Error: 01<CR><LF> (refer to 3.1.25)

Read Command

Response

AT+PN?<CR>

+PN: <amount><CR><LF>
OK<CR><LF>

Test Command

Response

AT+PN=?<CR>

+PN: 1~3<CR><LF>
OK<CR><LF>

<amount>

Peer device amount
Range: 1~3
Default: 3

AT+PN=1<CR>

OK<CR><LF>

AT+PN?<CR>

+PN: 1<CR><LF>
OK<CR><LF>

AT+PN=?<CR>

+PN: 1~3<CR><LF>

OK<CR><LF>

3.1.13 AT+PN

(1) Description

This command can set the amount of maximum slave. If the master connected to all the
slaves, and the RF data rate will be reduce. The module will be rebooting that the module
received write command in the connection mode.

(2) Syntax

(3) Parameter

(4) Example

BLE-USB, USB to Bluetooth Low Energy Converter (Ver. 1.0, Oct/6/2016) 27

AT+PN=7<CR>

Error: 01<CR><LF> (refer to 3.1.25)

AT+PN<CR>

Error: 04<CR><LF> (refer to 3.1.25)

Execution Command

Response

AT+SFR<CR>

OK<CR><LF>

Test Command

Response

AT+SFR=?<CR>

OK<CR><LF>

AT+SFR=?<CR>

OK<CR><LF>

AT+SFR?<CR>

OK<CR><LF>

AT+SFR=1<CR>

Error: 03<CR><LF> (refer to 3.1.25)

AT+SFR?<CR>

Error: 02<CR><LF> (refer to 3.1.25)

3.1.14 AT+SFR

(1) Description

This command can reboot the module. The module will be rebooting after 500 ms.

(2) Syntax

(3) Example

BLE-USB, USB to Bluetooth Low Energy Converter (Ver. 1.0, Oct/6/2016) 28

Write Command

Response

AT+SDN=<number><CR>

OK<CR>
Error: 01<CR><LF> (refer to 3.1.25)

Read Command

Response

AT+SDN?<CR>

+SDN: <number><CR><LF>
OK<CR><LF>

Test Command

Response

AT+SDN=?<CR>

+SDN: 0~999<CR><LF>
OK<CR><LF>

<number>

The number of device
Range: 0~999
Default: 720

Device name

3.1.15 AT+SDN

(1) Description

This command can set the device name of slave when the slave was broadcast in the
connection mode. The master (mobile device) can use the device name to identify slave.

(2) Syntax

(3) Parameter

Figure 3-2. Screenshot of mobile device APP

BLE-USB, USB to Bluetooth Low Energy Converter (Ver. 1.0, Oct/6/2016) 29

AT+SDN=1<CR>

OK<CR><LF>

AT+SDN?<CR>

+SDN: 1<CR><LF>
OK<CR><LF>

AT+SDN=77<CR>

OK<CR><LF>

AT+SDN=777<CR>

OK<CR><LF>

AT+SDN=?<CR>

+SDN: 0~999<CR><LF>

OK<CR><LF>

AT+SDN=1000<CR>

Error: 01<CR><LF> (refer to 3.1.25)

AT+SDN=ABCD<CR>

Error: 01<CR><LF> (refer to 3.1.25)

AT+SDN<CR>

Error: 04<CR><LF> (refer to 3.1.25)

(4) Example

3.1.16 AT+GID

(1) Description

This command is used to change the “Group ID” at the module. The device will receive the
packet when both of the Group ID is same in the broadcast or connection mode. The Group
ID isn’t same and the device will discard the packet. The Group ID is “0”, and it will
receive all packets of the group.

BLE-USB, USB to Bluetooth Low Energy Converter (Ver. 1.0, Oct/6/2016) 30

Write Command

Response

AT+GID=<number><CR>

OK<CR>
Error: 01<CR><LF> (refer to 3.1.25)

Read Command

Response

AT+GID?<CR>

+GID: <number><CR><LF>
OK<CR><LF>

Test Command

Response

AT+GID=?<CR>

+GID: 0~99<CR><LF>
OK<CR><LF>

<number>

The number of Group ID
Range: 0~99
Default: 0

AT+GID=1<CR>

OK<CR><LF>

AT+GID?<CR>

+GID: 1<CR><LF>
OK<CR><LF>

AT+GID=77<CR>

OK<CR><LF>

AT+GID=?<CR>

+GID: 0~99<CR><LF>

OK<CR><LF>

AT+GID=100<CR>

Error: 01<CR><LF> (refer to 3.1.25)

AT+GID=AB<CR>

Error: 01<CR><LF> (refer to 3.1.25)

(2) Syntax

(3) Parameter

(4) Example

BLE-USB, USB to Bluetooth Low Energy Converter (Ver. 1.0, Oct/6/2016) 31

AT+GID<CR>

Error: 04<CR><LF> (refer to 3.1.25)

Write Command

Response

AT+TPL=<Level><CR>

OK<CR>
Error: 01<CR><LF> (refer to 3.1.25)

Read Command

Response

AT+TPL?<CR>

+TPL: < Level><CR><LF>
OK<CR><LF>

Test Command

Response

AT+TPL=?<CR>

+TPL: 0~8<CR><LF>
OK<CR><LF>

< Level >

The RF power level
Range: 0~8
0: 0 dBm
1: 1 dBm
2: 2 dBm
3: 3 dBm
4: 4 dBm
5: -5 dBm
6: -10 dBm
7: -15 dBm
8: -20 dBm
Default: 4

3.1.17 AT+TPL

(1) Description

This command can change the RF power when the module was send the broadcast or

connection packet.

(2) Syntax

(3) Parameter

BLE-USB, USB to Bluetooth Low Energy Converter (Ver. 1.0, Oct/6/2016) 32

AT+TPL=1<CR>

OK<CR><LF>

AT+TPL?<CR>

+TPL: 1<CR><LF>
OK<CR><LF>

AT+TPL=?<CR>

+TPL: 0~8<CR><LF>

OK<CR><LF>

AT+TPL=10<CR>

Error: 01<CR><LF> (refer to 3.1.25)

AT+TPL<CR>

Error: 04<CR><LF> (refer to 3.1.25)

Write Command

Response

AT+BCIV=<Interval><CR>

OK<CR>
Error: 01<CR><LF> (refer to 3.1.25)

Read Command

Response

AT+BCIV?<CR>

+BCIV: <Interval><CR><LF>
OK<CR><LF>

Test Command

Response

AT+BCIV=?<CR>

+BCIV: 20~10000<CR><LF>
OK<CR><LF>

(4) Example

3.1.18 AT+BCIV

(1) Description

This command can change the broadcast interval in the broadcast mode.

(2) Syntax

BLE-USB, USB to Bluetooth Low Energy Converter (Ver. 1.0, Oct/6/2016) 33

< Interval >

The broadcast interval
Range: 20~10000
Unit: ms
Default: 1000

AT+BCIV=50<CR>

OK<CR><LF>

AT+BCIV?<CR>

+BCIV: 50<CR><LF>
OK<CR><LF>

AT+BCIV=?<CR>

+BCIV: 20~10000<CR><LF>

OK<CR><LF>

AT+BCIV=10<CR>

Error: 01<CR><LF> (refer to 3.1.25)
AT+BCIV=60000<CR>

Error: 01<CR><LF> (refer to 3.1.25)

AT+BCIV<CR>

Error: 04<CR><LF> (refer to 3.1.25)

(3) Parameter

(4) Example

3.1.19 AT+COML

(1) Description

This command can show that the module had supported commands.

(2) Syntax

BLE-USB, USB to Bluetooth Low Energy Converter (Ver. 1.0, Oct/6/2016) 34

Test Command

Response

AT+COML=?<CR>

OK<CR><LF>

Execution Command

Response

AT+COML=?<CR>

AT<CR><LF>

ATE<CR><LF>

AT+BC<CR><LF>

AT+BR<CR><LF>

AT+CL<CR><LF>

AT+CN<CR><LF>

AT+DI<CR><LF>

AT+FC<CR><LF>

AT+LA<CR><LF>

AT+PN<CR><LF>

AT+GID<CR><LF>

AT+SDN<CR><LF>

AT+SFR<CR><LF>

AT+TPL<CR><LF>

AT+BCIV<CR><LF>

AT+COML<CR><LF>

AT+ROLE<CR><LF>

AT+EKEY<CR><LF>

AT+SKEY<CR><LF>

AT+SMODE<CR><LF>
AT+BCROLE<CR><LF>
OK<CR><LF>

AT+COML=?CR>

OK<CR><LF>

AT+COML?<CR>

AT<CR><LF>

ATE<CR><LF>

AT+BC<CR><LF>

AT+BR<CR><LF>

(3) Example

BLE-USB, USB to Bluetooth Low Energy Converter (Ver. 1.0, Oct/6/2016) 35

AT+CL<CR><LF>

AT+CN<CR><LF>

AT+DI<CR><LF>

AT+FC<CR><LF>

AT+LA<CR><LF>

AT+PN<CR><LF>

AT+GID<CR><LF>

AT+SDN<CR><LF>

AT+SFR<CR><LF>

AT+TPL<CR><LF>

AT+BCIV<CR><LF>

AT+COML<CR><LF>

AT+ROLE<CR><LF>

AT+EKEY<CR><LF>

AT+SKEY<CR><LF>

AT+SMODE<CR><LF>
AT+BCROLE<CR><LF>
OK<CR><LF>

Write Command

Response

AT+ROLE=<role><CR>

OK<CR>
Error: 01<CR><LF> (refer to 3.1.25)

Read Command

Response

AT+ROLE?<CR>

+ROLE: <role><CR><LF>
OK<CR><LF>

Test Command

Response

AT+ROLE=?<CR>

+ROLE: 0~1<CR><LF>
OK<CR><LF>

3.1.20 AT+ROLE

(1) Description

This command can change connection role (refer to 1.5.1) in the connection mode.

(2) Syntax

BLE-USB, USB to Bluetooth Low Energy Converter (Ver. 1.0, Oct/6/2016) 36

< role >

The role connection
Range: 0~1
0: Slave (Peripheral)
1: Master (Central)
Default: 0

AT+ROLE=1<CR>

OK<CR><LF>

AT+ROLE?<CR>

+ROLE: 1<CR><LF>
OK<CR><LF>

AT+ROLE=?<CR>

+ROLE: 0~1<CR><LF>

OK<CR><LF>

AT+ROLE=10<CR>

Error: 01<CR><LF> (refer to 3.1.25)

AT+ROLE<CR>

Error: 04<CR><LF> (refer to 3.1.25)

(3) Parameter

(4) Example

BLE-USB, USB to Bluetooth Low Energy Converter (Ver. 1.0, Oct/6/2016) 37

Write Command

Response

AT+EKEY=<status><CR>

OK<CR>
Error: 01<CR><LF> (refer to 3.1.25)

Read Command

Response

AT+EKEY?<CR>

+EKEY: <status><CR><LF>
OK<CR><LF>

Test Command

Response

AT+EKEY=?<CR>

+EKEY: 0~1<CR><LF>
OK<CR><LF>

< status >

The enable or disable Master identification mechanism
Range: 0~1
0: Disable
1: Enable
Default: 0

AT+EKEY=1<CR>

OK<CR><LF>

AT+EKEY?<CR>

3.1.21 AT+EKEY

(1) Description

This command is used to enable or disable Master identification mechanism (refer to 1.6).

(2) Syntax

(3) Parameter

(4) Example

BLE-USB, USB to Bluetooth Low Energy Converter (Ver. 1.0, Oct/6/2016) 38

+EKEY: 1<CR><LF>
OK<CR><LF>

AT+EKEY=?<CR>

+ROLE: 0~1<CR><LF>

OK<CR><LF>

AT+EKEY=10<CR>

Error: 01<CR><LF> (refer to 3.1.25)

AT+EKEY<CR>

Error: 04<CR><LF> (refer to 3.1.25)

Write Command

Response

AT+SKEY=<KEY><CR>

OK<CR>
Error: 01<CR><LF> (refer to 3.1.25)

Read Command

Response

Byte 0 Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6 Byte 7 Byte 8 Byte 9

Modify by AT command

Fix Value

3.1.22 AT+SKEY

(1) Description

The user enables the Master identification mechanism and the Master will be sending
identification packet to the Slave. This command can change the identification packet of
Master identification mechanism.

Figure 3-3. The identification packet

(2) Syntax

BLE-USB, USB to Bluetooth Low Energy Converter (Ver. 1.0, Oct/6/2016) 39

AT+SKEY?<CR>

+SKEY: <KEY><CR><LF>
OK<CR><LF>

Test Command

Response

AT+SKEY=?<CR>

+SKEY: KEY<CR><LF>
OK<CR><LF>

< KEY >

The key of Master identification mechanism
Key length: 6 Byte
Key value: 0x20~0xFF (ASCII)
Default: ICPDAS

AT+SKEY=ABCDEF<CR>

OK<CR><LF>

AT+SKEY?<CR>

+SKEY: ABCDEF<CR><LF>
OK<CR><LF>

AT+SKEY=?<CR>

+SKEY: 0~1<CR><LF>

OK<CR><LF>

AT+SKEY=<0x01><0x21><0x02><0x23><0x24><0xFF><CR>

Error: 01<CR><LF> (refer to 3.1.25)

AT+SKEY<CR>

Error: 04<CR><LF> (refer to 3.1.25)

(3) Parameter

(4) Example

BLE-USB, USB to Bluetooth Low Energy Converter (Ver. 1.0, Oct/6/2016) 40

Write Command

Response

AT+SMODE=<MODE><CR>

OK<CR>
Error: 01<CR><LF> (refer to 3.1.25)

Read Command

Response

AT+SMODE?<CR>

+SMODE: <MODE><CR><LF>
OK<CR><LF>

Test Command

Response

AT+SMODE=?<CR>

+SMODE: 0~1<CR><LF>
OK<CR><LF>

< MODE >

The transmission mode
Range: 0~1
0: connection mode
1: broadcast mode
Default: 0

AT+SMODE=1<CR>

OK<CR><LF>

AT+SMODE?<CR>

3.1.23 AT+SMODE

(1) Description

This command can switch the transmission mode to the broadcast or connection mode.

(2) Syntax

(3) Parameter

(4) Example

BLE-USB, USB to Bluetooth Low Energy Converter (Ver. 1.0, Oct/6/2016) 41

+SMODE: 1<CR><LF>
OK<CR><LF>

AT+SMODE=?<CR>

+SMODE: 0~1<CR><LF>

OK<CR><LF>

AT+SMODE=2<CR>

Error: 01<CR><LF> (refer to 3.1.25)

AT+SMODE<CR>

Error: 04<CR><LF> (refer to 3.1.25)

Write Command

Response

AT+BCROLE=<Role><CR>

OK<CR>
Error: 01<CR><LF> (refer to 3.1.25)

Read Command

Response

AT+BCROLE?<CR>

+BCROLE: <Role><CR><LF>
OK<CR><LF>

Test Command

Response

AT+BCROLE=?<CR>

+BCROLE: 0~1<CR><LF>
OK<CR><LF>

3.1.24 AT+BCROLE

(1) Description

This command can switch the role (refer to 1.5.2) in the broadcast mode.

(2) Syntax

BLE-USB, USB to Bluetooth Low Energy Converter (Ver. 1.0, Oct/6/2016) 42

< Role >

The broadcast role
Range: 0~1
0: Observer
1: Broadcaster
Default: 0

AT+BCROLE=1<CR>

OK<CR><LF>

AT+BCROLE?<CR>

+BCROLE: 1<CR><LF>
OK<CR><LF>

AT+BCROLE=?<CR>

+BCROLE: 0~1<CR><LF>

OK<CR><LF>

AT+BCROLE=2<CR>

Error: 01<CR><LF> (refer to 3.1.25)

AT+BCROLE<CR>

Error: 04<CR><LF> (refer to 3.1.25)

(3) Parameter

(4) Example

BLE-USB, USB to Bluetooth Low Energy Converter (Ver. 1.0, Oct/6/2016) 43

Error code

Mode

Description

01

AT

command

mode

The parameter of AT command is error

02

This command didn’t support read mode

03

This command didn’t support write mode

04

This command didn’t support execution mode

05

Unknown AT command

06

Unknown AT command mode

07

Set baud rate fail

C1

Connection

mode

Not connect to peer device

C2

Illegal master

A1

Broadcast

mode

Header error

A2

Broadcast packet is too long

A3

Broadcast packet is null

A4

This features was not supported in broadcaster role

A5

This features was not supported in Observer role

Set packet

+ADV: xxx <CR>

Start transmission

+ADS<CR>

Stop transmission

+ADP<CR>

3.1.25 Error Code Table

3.2 The Broadcast Mode Command

The module also supports few commands in broadcast mode. User can send this command and
didn’t need to enter the command mode. The prefix “+AD” must be included at the
beginning of each command line, and the character <CR> is used to finish a command line.

Figure 3-4. Start transmission in broadcast mode

BLE-USB, USB to Bluetooth Low Energy Converter (Ver. 1.0, Oct/6/2016) 44

Execution Command

Response

+ADV:<packet><CR>

OK<CR><LF>
Error: A1<CR><LF> (refer to 3.1.25)
Error: A2<CR><LF> (refer to 3.1.25)
Error: A5<CR><LF> (refer to 3.1.25)

< packet >

The broadcast packet
Length: 21 Bytes

+ADV:ABCDE<CR>

OK<CR><LF>

+ADV:012345678901234567890<CR>

OK<CR><LF>

+ADV:01234567890123456789ABCD<CR>

Error: A2<CR><LF> (refer to 3.1.25)

+ADV:012345<CR>

Error: A5<CR><LF> (refer to 3.1.25)

3.2.1 +ADV

(1) Description

This command was used to set the broadcast packet in the Broadcaster. The maximum
length of the broadcast packet is 21 Bytes.

(2) Syntax

(3) Parameter

(4) Example

BLE-USB, USB to Bluetooth Low Energy Converter (Ver. 1.0, Oct/6/2016) 45

+ADV012345<CR>

Error: A1<CR><LF> (refer to 3.1.25)

Execution Command

Response

+ADS<CR>

OK<CR><LF>
Error: A1<CR><LF> (refer to 3.1.25)
Error: A3<CR><LF> (refer to 3.1.25)
Error: A5<CR><LF> (refer to 3.1.25)

+ADS<CR>

OK<CR><LF>

+ADS<CR>

Error: A1<CR><LF> (refer to 3.1.25)

+ADS<CR>

Error: A3<CR><LF> (refer to 3.1.25)

+ADS<CR>

Error: A5<CR><LF> (refer to 3.1.25)

3.2.2+ADS

(1) Description

This command is used to enable broadcast packet transmission.

(2) Syntax

(3) Example

BLE-USB, USB to Bluetooth Low Energy Converter (Ver. 1.0, Oct/6/2016) 46

Execution Command

Response

+ADP<CR>

OK<CR><LF>
Error: A1<CR><LF> (refer to 3.1.25)
Error: A5<CR><LF> (refer to 3.1.25)

+ADP<CR>

OK<CR><LF>

+ADP<CR>

Error: A1<CR><LF> (refer to 3.1.25)

+ADP<CR>

Error: A5<CR><LF> (refer to 3.1.25)

Execution Command

Response

+ADR<CR>

+ADR: <mac address>,<RSSI>
OK<CR><LF>
Error: A1<CR><LF> (refer to 3.1.25)
Error: A4<CR><LF> (refer to 3.1.25)

3.2.3 +ADP

(1) Description

This command is used to stop broadcast packet transmission.

(2) Syntax

(3) Example

3.2.4 +ADR

(1) Description

This command can show the RSSI of Broadcaster when the module was the Observer.

(2) Syntax

BLE-USB, USB to Bluetooth Low Energy Converter (Ver. 1.0, Oct/6/2016) 47

< mac address >

The mac address of peer device
Range: 000DE06D0000 ~ 000DE06DFFFF
Length: 6 Bytes

< RSSI >

The RSSI of Broadcaster
+ADR<CR>

+ADR: 000DE06D0001,-051<CR><LF>

+ADR<CR>

+ADR: 000DE06D0001,-051<CR><LF>
+ADR: 000DE06D0002,-060<CR><LF>

+ADR<CR>

Error: A1<CR><LF> (refer to 3.1.25)

+ADR<CR>

Error: A4<CR><LF> (refer to 3.1.25)

(3) Parameter

(4) Example

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Figure 4-1. load success

Figure 4-2. load fail

4. Configuration Utility

The tBLE-720/BLEUSB utility had four functions. It can load the configuration, write the
configuration, update the firmware and test the module.

4.1 Main Window of tBLE-720/BLE-USB Utility

User can load the configuration in the main page. First, it need select the COM port and baud
rate. Second, it need press “Open Port” button, and the utility would automatically load the
configuration. If load configuration was success, and the result was shown in Figure 4-1. If load
configuration was fail, and the result was shown in Figure 4-2.

4.2 Set Configuration on Utility

The setting page was shown in Figure 4-3. The “Basic Parameter Setting” page can set up the
configuration. The “Recovery Factory Setting” can recovery module to factory setting.

Figure 4-3. Setting configuration page

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4.2.1 Basic Parameter Setting Page

The basic parameter setting page was shown in the Figure 4-4. The basic parameter setting had
6 steps. User can load the configuration in the step 1. The configuration can save in the step6.
The “Next” button can go into next step. The “Previous” button can go back to previous step.

Figure 4-4. Basic parameter setting

 Step1

The step 1 was established serial wire connection between BLE-USB and host PC. If the
COM port already opened in the main page, the COM port will automatically open when
you enter this page. If the configuration was saved in the step 6, you could load the
configuration by “Load Configuration” button. The filename extension of configuration is
*.txt. The Figure 4-5 is a warning message when the COM port opens fail. Please check
the COM port number and baud rate is correct.

Figure 4-5. Open COM port fail

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 Step2 ~ 5

User can select different parameters in the step2 to step5. When the configuration was
selected, you could click the “Next” button. The “Next” button will be switching to next
step. You also can use the “Previous” button, and it will back to the previous step. All of
the configurations will upload to the module in the step6.

 Step2

The Step 2 can change broadcast parameter.

 Broadcast role: role of broadcast mode (refer to 1.5.2 and 3.1.24).
 Broadcast channel: change the broadcast channel when the module was in the

broadcast mode (refer to 3.1.6).

 Broadcast Interval: how often to send a broadcast packet

 Step 3

Figure 4-6. Broadcast parameter setting

The step 3 can change the connection parameter.

 Connection role: role of connection mode (refer to 1.5.1 and 3.1.20)
 Peer amount: Maximum amount of slave (refer to 3.1.13)
 Slave device number: the device name of slave when slave is advertising.(refer to

3.1.15)

 Group ID: the ID of connection group (refer to 3.1.16).

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Figure 4-7. Connection parameter setting

 Step4

The step 4 is used to change the Master identify mechanism.

 Enable Master Identify Mechanism: Enable or disable Master identify mechanism

(refer to 1.6 and 3.1.21).

 Identify Key: Set the identification packet (refer to 1.6 and 3.1.22).

Figure 4-8. Master identify mechanism setting

 Step5

The step 5 can change the baud rate, send mode and RF power.

 Baud rate: the baud rate of BLE-USB (refer to 3.1.7).

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Figure 4-10. Upload complete

Figure 4-11. Upload fail

 Send Mode: transmission mode of BLE-USB (refer to 3.1.23).
 RF power level: the RF power level (refer to 3.1.17).

Figure 4-9. Other parameter setting

 Step6

The step 6 is final step in the basic parameter setting page. You can save the configuration
by “Save Configuration” button, but it need select a store path before you click “Save
Configuration” button. Please click the “Upload Setting” to upload the configuration into
the BLE-USB. The utility will show an information message after the configuration was
done. The BLE-USB will automatically restart by itself after the configuration uploaded
complete. The utility will show an error message that the configuration had uploaded fail.
Please re-power on the BLE-USB, and back to the step 1.

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Figure 4-12. Recovery success

Figure 4-13. Recovery fail

4.2.2 Recovery Factory Setting Page

The “Recovery Factory Setting” Page can recovery module to factory setting. First, Pleas click
“Open Port” button to make a serial connection between BLE-USB and host PC. Second,
Please click the “Recovery” button to start recovery process, and the utility will show a
message after recovery process is complete. If the recovery process is fail, BLE-USB need re­power and do it again.

4.3 Test Module on Utility

The module test page was shown in the Figure 4-14.The utility supports two types for the
module test. The “connection Mode” is used to test module in the connection mode (refer to

1.3.2). The “Broadcast Mode” is used to test the module in the broadcast mode (refer to 1.3.1)

Figure 4-14. Module test page

4.3.1 Connection Mode

The main page of connection mode was shown in the Figure 4-15. This page can send or

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Figure 4-16. Warring message

Figure 4-17. Error message

receive data from peer device in connection mode. It also can load the configuration from the
module.

Figure 4-15. Main page of connection mode

 Open the COM port

It needs to make a serial connection between BLE-USB and host PC. The utility will
check the transmission mode after you click the “Open Port” button. If the module wasn’t
in the connection mode, the warring message would be shown after you clicked the “Open
Port” button. User need switch module to the connection mode (refer to 4.2). If the serial
port setting was incorrect, the error would be shown after you clicked the “Open Port”
button. Please check the serial setting is correct, and re-open COM port again.

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 Send data to peer device

You can type data in the textbox and click the “Send” button. The data of textbox will
send to the peer device. This data will also show print to the textbox.

Figure 4-18. Textbox and Send button

Figure 4-19. Print to the textbox

 End with the String

It will add into the end of the string. You can select the types you want to add into the end
of the string.

Figure 4-20. End with the String

 Auto Send

This feature will send the message automatically. First, it need set the time interval in the
textbox. Second, please click “Set” button and the “Send” button will be enable. Third,

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Figure 4-23. Module Configuration

Figure 4-24. Read button

Figure 4-25. Status of connection

please click “Send” button to start transmission the packet.

Figure 4-21. Auto send

 Receive Data

When the module was received data from the peer device. It will print the data to the
textbox.

Figure 4-22. Receive data

 Module Configuration

The utility will load the module configuration when the “Open Port” had clicked. It will
print the connection role, peer amount, group ID, device name and address to the textbox.
In addition, you can click the “Read Connection List” button; it will show the status of
connection.

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Figure 4-27. Warring message

Figure 4-28. Error message

4.3.2Broadcast Mode

The main page of broadcast mode was shown in the Figure 4-26. This page can send or receive
data from peer device in broadcast mode. It also can load the configuration from the module.

Figure 4-26. Main page of broadcast mode

 Open the COM port

It needs to make a serial connection between BLE-USB and host PC. The utility will
check the broadcast mode after you click the “Open Port” button. If the module wasn’t in
the broadcast mode, the warring message would be shown after you clicked the “Open
Port” button. User need switch module to the broadcast mode (refer to 4.2). If the serial
port setting was incorrect, the error would be shown after you clicked the “Open Port”
button. Please check the serial setting is correct, and re-open COM port again.

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Figure 4-29. Set the packet

Figure 4-30. Information message

Figure 4-31. Module

Configuration

Figure 4-32. Read button

Figure 4-33. status of peer device

 Send data to peer device

Only the Broadcast can send the packet to the peer device. This feature will disable when
the module is the Observer. You need to set the packet in the textbox and click the “Set
Packet” button to send the packet. It will appear an information message after you click
the button, and then the Broadcast will start sending the packet with timer interval. You
also can pause or resume the packet.

 Module Configuration

The utility will load the module configuration when the “Open Port” had clicked. It will
print the broadcast role, broadcast channel, broadcast interval, group ID and address to the
textbox. In addition, you can click the “Read Advertiser Information” button; It will show
the status of peer device.

 Receive Data

When the module was received data from the Broadcaster. It will print the data to the
textbox.

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4.4 Firmware Upgrade on Utility

Figure 4-34. Receive data

Although the utility support two types for firmware upgrade, but the BLE-USB only supports
OTA firmware upgrade. The OTA firmware upgrade need Bluetooth interface in your computer.
The Bluetooth interface must be compiling with the Bluetooth 4.0 standards. If you don’t have
Bluetooth interface in your computer, you need to buy a BLE USB dongle. Users just need to
execute “Firmware Upgrade” and follow the below steps to complete the firmware upgrade
process.

Figure 4-35. Firmware upgrade page

 Disable the Master identification mechanism

You need to disable the Master identification mechanism (refer to 3.1.21). The Master
identification mechanism can disable by utility (refer to 4.2.1) or AT command.

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Figure 4-37. Switch to Slave by utility

Figure 4-38. Switch to connection mode by utility

Figure 4-36. Disable Master Identification mechanism by utility

 Switch BLE-USB to connection mode and Slave

The OTA only work when the BLE-USB is the Salve in the connection mode. You can use
the utility (refer to 4.2.1.) to switch the role and transmission mode. The AT command
(refer to 3.1.20 and 3.1.23) also can do it.

 Connect the BLE-USB by your computer

You need to connect the BLE-USB by your Bluetooth interface on your computer. The
device name is BUSB-XXX. The “XXX” can change by AT command (refer to 3.1.15) or
the utility (refer to 4.2.1). If the Bluetooth interface didn’t scan any device, please re­power the BLE-USB. Ensure your device is Advertising so the PC can find it.

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Figure 4-39. Connect BLE-USB with Windows 10

Figure 4-40. Change slave device number by utility

 Upgrade the firmware

Step 1: Open the OTA firmware upgrade page

Figure 4-41. Open the firmware upgrade page

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1

2

3

Step 2: check the OTA step, and click “OK” button.

Figure 4-42. OTA step

Step 3: Click the “Open” button. Select the firmware path. The filename extension of firmware
is *.signed.

Figure 4-43. Select firmware path

Step 4: Click the “Upload Firmware” button. The OTA program will be opening after click the
“Upload Firmware” button.

Figure 4-44. Click the “Upload Firmware”

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Step 5: Choose the device address. You can use the AT command (refer to 3.1.12) to make sure
the device address.

Figure 4-45. Select device address

Step 6. The OTA firmware upgrade will be start after click the “Start” button.

Step 7. Click the “Done” button

Figure 4-46. Click the “Start” button

Figure 4-47. Click the “Done” button

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5. Technical support

Please contact us if you have any questions about products.

ICP DAS website: http://www.icpdas.com
Email: [e-mail]

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