Ebyte E104-BT53C3 User manual

成都亿佰特电子科技有限公司 E28-2G4M12S 产品规格书
Copyright ©2012–2020，成都亿佰特电子科技有限公司
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E104-BT53C3 User Manual
BLE5.2 chip type Bluetooth wireless module
目录

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Chapter 1 Overview............................................................................................................................................................4
1.1 Introduction....................................................................................................................................................... 4
1.2 Features............................................................................................................................................................... 4
1.3 Application......................................................................................................................................................... 5
Chapter II Specification parameters ......................................................................................................................... 6
2.1 Radio frequency parameters........................................................................................................................... 6
2.2 Working parameters........................................................................................................................................... 6
Chapter 3 Mechanical Dimensions and Pin Definition........................................................................................... 7
Chapter 4 Basic Applications ....................................................................................................................................... 9
4.1 Recommended Circuits....................................................................................................................................... 9
Chapter 5 Function Details ........................................................................................................................................... 9
5.1 Role description............................................................................................................................................... 9
5.2 Default broadcast data................................................................................................................................. 10
5.3 BeaconDefault configuration....................................................................................................................... 10
5.4 Default configuration for the secondary role..................................................................................... 10
5.5 Module state..................................................................................................................................................... 10
5.6 Configuration................................................................................................................................................... 11
5.7 Configuration Mode......................................................................................................................................... 12
5.8 Automatic update............................................................................................................................................. 12
5.9 Compatibility with other modules of our company............................................................................... 12
Chapter 6 AT Command......................................................................................................................................................12
6.1 Instruction specification........................................................................................................................... 12
6.2 Error code......................................................................................................................................................... 13
6.3 Command list..................................................................................................................................................... 14
6.3.1Test Command................................................................................................................................................... 14
6.3.2 Broadcast name............................................................................................................................................. 14
6.3.3 MAC Address................................................................................................................................................... 14
6.3.4 Module characters....................................................................................................................................... 14
6.3.5 Transmitting power..................................................................................................................................... 15
6.3.6 Broadcast parameter................................................................................................................................... 15
6.3.7 Customize broadcast data......................................................................................................................... 16
6.3.9 Extended broadcast..................................................................................................................................... 17
6.3.10 Beacon Parameters..................................................................................................................................... 18
6.3.11Slave role service..................................................................................................................................... 19
6.3.12 Master role scan....................................................................................................................................... 19
6.3.14 Master role linkage................................................................................................................................. 20
6.3.15 Command sending data............................................................................................................................... 21
6.3.16 Displays connected devices................................................................................................................... 22
6.3.17 Disconnect................................................................................................................................................... 22
6.3.19Delete automatic reconnection............................................................................................................... 23
6.3.20 Specified transmission device............................................................................................................. 23
6.3.21 Observer function..................................................................................................................................... 24
6.3.18 Automatic reconnection........................................................................................................................... 25
6.3.22 Slave physical layer rate..................................................................................................................... 26

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6.3.23 Serial baud rate....................................................................................................................................... 27
6.3.24 Connection interval................................................................................................................................. 27
6.3.25 APP configuration authentication....................................................................................................... 27
6.3.27 Status output............................................................................................................................................. 28
6.3.28 Sleep pattern............................................................................................................................................. 29
6.3.29 Turn on/off the watchdog....................................................................................................................... 29
6.3.30Module soft reset....................................................................................................................................... 30
6.3.32 Firmware version....................................................................................................................................... 30
Chapter 7 Mobile APP test transparent transmission function ....................................................................... 30
Chapter 8 OTA upgrade function ................................................................................................................................. 34
Chapter 9 Hardware design ........................................................................................................................................... 37
Chapter 10 FAQ ..................................................................................................................................................................38
10.1 Transmission distance is not ideal....................................................................................................... 38
10.2 Module easy to damage ................................................................................................................................. 38
10.3 The bit error rate is too high............................................................................................................... 38
Chapter 11 welding operation instruction ............................................................................................................. 39
11.1 Reflow temperature....................................................................................................................................... 39
11.2 Reflow welding diagram............................................................................................................................... 40
Chapter 12 Related Models ........................................................................................................................................... 41
Revise History..................................................................................................................................................................42
About us..............................................................................................................................................................................42

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Chapter 1 Overview
1.1 Introduction
E104-BT53C3 is a serial to BLE Bluetooth module based on Bluetooth protocol version 5.2, with
high temperature resistance, small size, low power consumption, long transmission distance, strong
anti-interference ability, etc., working in the 2.4GHz band. Ltd. based on Silicon Labs
EFR32BG22C224F512IM40-C chip research and development of automotive-grade Bluetooth
module, can be used in -40 ~ +125 ℃environment for a long time, the module uses a common AT
command, simple and fast operation
Modules can be widely used in smart wear, home automation, home security, personal health care, smart home appliances,
accessories and remote control, automotive, lighting, industrial Internet, intelligent data acquisition, intelligent control and other
fields.
1.2 Features
Support Bluetooth BLE 5.2 protocol；
Easy to use, no experience with Bluetooth protocol applications required；
Supports all BLE 5.2 features: 2M physical layer, long-range broadcast, extended broadcast；
Support BLE single master role, single slave role, master-slave role and Beacon role；
The module can act as both a master and a slave, and can be connected to other master devices as well as
other slave devices.
Support OTA remote upgrade function；
Master role supports multiple connections: up to 8 slave devices can be connected simultaneously under a
single master role; 7 slave devices can be connected simultaneously under a master-slave role, and can be connected
as a slave by another master device at the same time；
Default 20ms connection interval, fast connection, compatible with our other BLE modules；
User interface using universal serial port design, hardware flow control support full duplex communication,
minimum baud rate support 1200bps, maximum support 921600bps；
Support serial port or mobile APP to send AT command；
Support AT command software reset module；
Support AT command to set connection interval to control different forwarding rate and adjust dynamic power
consumption；
Support AT command to set transmit power, broadcast interval, serial port baud rate, broadcast name, etc.；
Support AT command to modify the Service UUID from the role；
2K serial port cache, serial port receives user MCU data in 244-byte automatic packetization with a timeout
of 100 ms；
High-speed transmission and forwarding, measured up to 50KB/s when the signal is good；
Supports modified physical layer communication rates: 1M, 2M and LE Coded (125K and 500K)；
Custom broadcast data support from role, up to 26 bytes custom；

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Extended broadcast packet support from role, up to 251 bytes of customizable extended broadcast；
Support for setting long range broadcast packets (Long Range/LE_CODED)；
Modules are compatible with other models of our company's modules；
Sleeping power consumption is as low as about 2uA.
1.3 Application
Automotive electronics applications
Intelligent household and industrial sensors, etc
Smart wear
Family security
Personal care
Smart appliances
Accessories and remote control
Intelligent Robot
Wireless sensing
Intelligent control
Petroleum, chemical, metallurgy, etc.

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Chapter II Specification parameters
2.1 Radio frequency parameters
Parameters
Performance
Notes
Min
Max
Power Supply（V）
1.8
3.8
Exceeding 3.8V May permanently burn the
module
Blocking power（dBm）
-
6
The probability of burning is small when
used in close proximity
Working Temperature（℃）
-40
+125
Automotive Grade
2.2 Working parameters
RF Parameters
Performance
Notes
Min
Typical
Max
Working voltage（V）
1.8
3.3
3.8
≥3.3V for guaranteed output power
Working voltage（V）
-
3.3
-
Using 5V levels risks burnout
Working Temperature（℃）
-40
-
125
Car gauge level design
Working Frequency（MHz）
2400
-
2480
Support ISM band
Transmitting power（dBm）
-28
0
6
-
功 耗
Emission current
（mA）
-
10.5
-
Peak transient current @6dBm
-
5.3
-
Peak transient current @0dBm
Receiving current
（mA）
-
2.5
-
-
Sleep current(uA)
-
2
-
-
Receiving sensitivity（dBm）
-
-98.9
-
1 Mbit/s GFSK
Receiving sensitivity（dBm）
-
-96.2
-
2 Mbit/s GFSK
Receiving sensitivity（dBm）
-
-106.7
-
125 Kbit/s GFSK
Parameters
Description
Notes
Distance
170m
Clear and open environment, height 1m,
@6dBm,airspeed 1Mbps
Crystal Frequency
38.4MHz
-
Bluetooth Protocol
BLE 5.2
-
Communication Interface
UART
-
Packaging method
SMD
-
IC Name
EFR32BG22C224F512IM40-C
-
FLASH
512KB
-

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RAM
32KB
-
Kernel
ARM®Cortex®-M33
-
Dimension
23*16mm
-
Antenna Interface
PCB
Equivalent impedance about 50Ω
Product weight
1.25g
±0.2g
Chapter 3 Mechanical Dimensions and Pin Definition
Pin No.
Name
Function
Notes
1
PB04
I/0
GPIO
2
PB03
I/0
GPIO
3
TXD
0
Module serial port transmitter
4
RXD
I
Receiver side of module serial port
5
PB00
I/0
GPIO
6
PA00
MOD
Mode configuration: the module enters configuration mode when the
input is held low for more than 200ms; the module enters
pass-through mode when the input is held high for more than 200ms.
(This pin has internal pull-up and works in pass-through mode by
default)

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7
PA01
SWCLK
Users don't need to care
8
PA02
SWDIO
Users don't need to care
9
PA03
I/0
GPIO
10
PA08
O
Indicates the connection status of the slave (including the Beacon
role)
Pin outputs low after successful connection
Outputs high when the connection is disconnected
11
PA07
0
Indicates host connection status
Output low when connection is successful
Output high when disconnected
12
PA06
RTS
(Standard hardware flow control Require To Send) Module output
signal, when it is high
indicates that the module serial port is busy and the MCU is not
allowed to send data to the module serial port; when it is low,
data can be sent to the module.
13
PA05
CTS
(Standard Hardware Flow Control Clear To Send) Module input signal,
when high, indicates that the MCU serial port is busy and the module
will not send data to the MCU serial port.
indicates that the MCU serial port is busy and the module will not
send data to the MCU serial port; when it is low, data can be sent
to the MCU.
14
PA04
RESTORE
Internal pull-up. After a falling edge and then holding low for
at least 5 seconds, all parameters are restored to factory settings
and the module is automatically restarted
15
VCC
I
Positive power supply, 1.71~3.8V, 3.3V recommended
16
PD03
I/0
GPIO
17
PD02
I/0
GPIO
18
PC00
I/0
GPIO
19
PC01
I/0
GPIO
20
PC02
I/0
GPIO
21
PC03
I/0
GPIO
22
PC04
I/0
GPIO
23
PC05
I/0
GPIO
24
PC06
I/0
GPIO
25
PC07
I/0
GPIO
26
RESET
--
Module reset pin, active low, internal pull-up
27
GND
--
Module Ground
28
GND
--
Module Ground

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Chapter 4 Basic Applications
4.1 Recommended Circuits
图 4-1 推荐电路
Note: The recommended circuit is the circuit recommendation diagram when the RTS(PA06) and CTS(PA05) pins
are used, and the connection can not be made when the RTS(PA06) and CTS(PA05) pins are not used.
Chapter 5 Function Details
5.1 Role description
The module supports the following four roles
1. slave role;
2. master role;
3. slave and master roles;
4. Beacon role;
The factory default is the slave ROLE, and the role is switched through the AT command "AT+ROLE". For details,
see 5 AT command. The serial port of the module under the Beacon role is closed every time the module is powered
on, and the serial port can be awakened by the rising edge of the CTS pin or the AT command can be sent through
the mobile phone APP to configure parameters.

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5.2 Default broadcast data
As shown in the figure above, data with lengths of 2, 8, and 3 are broadcast data, indicating the broadcast
type, MAC address, and UUID information respectively. Length 13 is the data of the scan response packet,
representing the broadcast name (the last 4 bytes are the last two bytes of the MAC address).
5.3 BeaconDefault configuration
1. Company ID:0x4C00
2. Major UUID:0x2775
3. Minor UUID:0x848F
4. RSSI:-48 dBm
5. UUID:0xFDA50693A4E24FB1AFCFC6EB07647825
The serial port of the module in this role is closed by default every time the module is powered on. You can wake up by using
the rising edge of the CTS pin.
5.4 Default configuration for the secondary role
1. 1. Device name: CDEBYTE_XXXX(XXXX is the last two bytes of the MAC address of the module).
2. 2. Broadcast interval: 200ms;
3. 3. The connection interval is 20ms to 40ms.
4. 4. The broadcast type is connectable and scannable broadcast.
5. 5. Connection timeout is 2.5 seconds.
6. The UUID is 16 bits by default；
5.5 Module state
1. MODULE POWERUP: The module is started；
2. XX:XX:XX:XX:XX:XX CONNECTD P*X：The connection from the role succeeded. Procedure；
3. XX:XX:XX:XX:XX:XX DISCONNECTED P：Disconnect from the role；
4. XX:XX:XX:XX:XX:XX CONNECTED B：Beacon connection successful；

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5. XX:XX:XX:XX:XX:XX DISCONNECTED B：Beacon disconnect；
6. XX:XX:XX:XX:XX:XX CONNECTD C*Y：The primary role is connected successfully. Procedure；
7. XX:XX:XX:XX:XX:XX DISCONNECTED C：The primary role is disconnected；
8. ALREADY CONNECTED：This device is connected；
9. XX:XX:XX:XX:XX:XX CONNECT TIMEOUT：BLE Host connection to secondary device times out；
The above state can be enabled or disabled by the AT command "AT+ LOGMSG". For details, see section 5 AT
Command.
5.6 Configuration
1．A maximum of eight secondary role devices can be connected to a single primary role. A master/slave role
can be connected to seven slave devices at the same time, and can be connected to another master device as a slave
role；
2．AT+CONNECT command Failed to connect to the device prompt +ERR=3. For the cause, see the command description；
3．Multiple connection Specifies automatic reconnection of multiple devices. When a peer device is
disconnected abnormally, the module starts automatic reconnection，
4．Please refer to instructions；
5．In the case of multiple connections, the handle function specified in the AT+TRM_HANDLE command does not
save data after a power failure. The device transfers data to the newly connected device by default. If the handle
device corresponding to data transfer is disconnected, the handle value of data transfer automatically switches
to the last device in the connection list. (The handle value can be XX:XX:XX:XX:XX:XX in the message returned
after the connection is successfully established.
6．"CONNECTED P*X" or via the command AT+CONNECT_LIST? Acquired)；
7．Seven. After the user uses the command to actively disconnect the connection with the device that has been
set as automatic reconnection, the automatic reconnection fails this time
8．It takes effect after an abnormal disconnect.
Note: Multi-connection data transmission sources are more complex, such as master-slave integration: data
may come from the following four devices, so the data packet should contain the data source, otherwise it is
impossible to identify which device the data comes from.

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5.7 Configuration Mode
The module supports two configuration modes: serial port configuration and APP configuration. APP
configuration, that is, to use the BLE APP configuration module on the phone, you must first verify the password
through AT+AUTH, some instructions do not support APP configuration, see 5.3 instruction table for details, and
other AT instructions are allowed to use after verification. The authentication period of the APP is set to this
connection. If the device is disconnected and reconnected, it needs to be re-authenticated.
1. Which configuration mode the module is in depends on the PA00(MOD) pin level.
2. APP configuration can be configured at any time, regardless of PA00(MOD) pin status.
3. PA00(MOD) pin latches the current state when a valid change is detected. The holding time of each status
change is more than 200ms.
4. In configuration mode, the serial port sends the AT command, wait for the serial port to return, and
then send the next AT command.
5.8 Automatic update
MTU indicates the data length of BLE single packet. The default value is 247, and the payload length is 244.
After the module is successfully connected, the slave initiates the MTU update. If the host accepts and responds,
the slave MTU is used. If the host refuses and responds, the master and slave use the MTU of the host.
5.9 Compatibility with other modules of our company
When our other modules are connected to E104-BT53C3, input the MAC address of E104-BT53C3, you need to pay
attention to the size end.
Chapter 6 AT Command
When other modules of our company connect to E104-BT53C3, enter the MAC address of E104-BT53C3, and pay
attention to the problems of the size end.
6.1 Instruction specification
Instruction type
Instruction format
Deacription
Query instruction
AT+[X]?
This command is used to query the
parameters of the setup command.

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Set instruction
AT+[X]=<…>
This command is used to set user
- defined parameters.
Execute
instruction
AT+[X]
Used for instructions without
parameters, such as module reset.
Notes：
Serial configuration ends with carriage return (\r) and line feed (\n) (APP configuration does not bring
back car line feed)；
The return result for both configuration modes ends with (\r) and (\n), and is not explained later；
The serial port baud rate is 115200 by default, 8 data bits, 1 stop bit, and no verification；
The command parameters are in ASCII format；
The command error response format +ERR:[NUM], [NUM] see 6.2 Error codes;
In the AT instruction, <> indicates optional parameters, and [] indicates required parameters; If all
parameters of the AT directive are optional, fill in any of the parameters, such as AT+ADV=,,20；
The instruction section is case insensitive (excluding the "APP Configuration authentication"
instruction);
If the module is in configuration mode or transparent mode, you can configure it using the APP；
Some commands do not support APP configuration, such as "Set extended broadcast", "AT command send data",
"master role scan", "Enable observer" and other AT commands that require serial port coordination；
All AT commands cannot contain invisible characters such as Spaces and tabs.
6.2 Error code
NUM
Description
Error cause
solution
1
Instruction not
present
Input instruction error
Read the 6.3 command sheet, for
example, set broadcast parameters, and
compare the command "AT+ADV" character by
character to prevent typing or word
spelling resulting in incorrect
characters.
2
Parameter error
Input parameter error
Check the Parameter description of
each instruction table in 6.3 Instruction
Table.
3
The operation is
not allowed or failed
Related functions (such as
connection and parameter setting)
fail. For example, if the AT+SCAN
command is not executed when the
module is powered on, run
AT+CONNECT=0
Parameter may have been saved, please
try again or check "Description" for each
instruction table in 3.3 Instruction Table
4
Operation error
The current role does not
support this directive
Check the "Description" of each
instruction table in 6.3 Instruction Table

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6.3 Command list
6.3.1Test Command
Command
Reply
AT
+OK
Note: Used to test whether the serial port communication is normal.
6.3.2 Broadcast name
Command
Reply
Inquire
AT+NAME?
+ NAME =[para]
Setting
AT+NAME=[para]
+OK：success
+ERR=[NUM]：Error
Parameters
Broadcast name
Description
Effective immediately, power off save;
The length of the broadcast name is not more than 16 bytes;
The factory default broadcast name is CDEBYTE_XXXX, which is the last two bytes of the MAC
address.
Example
Query the broadcast name (MAC: 2C:11:65:22:B1:1B)
Instruction: AT+NAME?
Return: +NAME=CDEBYTE_B11B
Set the broadcast name to MY_TEST
Instruction: AT+NAME=MY_TEST
Return: +OK
6.3.3 MAC Address
Commmand
Reply
Inquire
AT+MAC?
+ MAC =[para]
Parameters
MAC Address
Descriptionn
The returned MAC address is a hexadecimal character.
Example
Assume that the local MAC address is 2C:11:65:22:B1:1B
Instruction: AT+MAC?
Return: +MAC=2C:11:65:22:B1:1B
6.3.4 Module characters
Command
Reply
Inquire
AT+ROLE？
+ROLE=[para]

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Setting
AT+ROLE=[para]
+OK：Success
+ERR=[NUM]：Error
Parameters
para
Characters
0
slave, single slave (default)
1
master, single master
2
slave and master. Slave and master
3
Beacon
Description
Restart takes effect, power failure save;
Switching the role will clear the list of automatic reconnection devices.
Beacon role serial port is off by default and unavailable, can be awakened by CTS pin rise
edge).
Example
Query module role
Instruction: AT+ROLE?
Return: +ROLE=0
Set the module role to single host
Command: AT+ROLE=1
Return: +OK
6.3.5 Transmitting power
Command
Reply
Inquire
AT+ PWR?
+ PWR =[para]
Setting
AT+ PWR =[para]
+OK：success
+ERR=[NUM]：Error
Parameters
The selectable value is-28，-20，-10，-5，-3,0,1,2,4,6
Description
Effective immediately, power off save;
Cannot be set when scanning, observer or connection is enabled, otherwise error code 3 is returned.
The actual power may differ slightly from the requested value;
The A1 version has a maximum transmit power of 0dBm, and the parameters using this instruction range
from -28 to 0dBm.
Example
Query transmit power
Command: AT+PWR?
Return: +PWR=0
Set the module transmit power to -5 DBM
Command: AT+PWR=-5
Return: +OK
6.3.6 Broadcast parameter
Command
Reply
Inquire
AT+ADV?
+ ADV =[para1],[para2],[para3]

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Setting
AT+ADV=<para1>,<para2>,<para3>
+OK：success
+ERR=[NUM]：Error
Parameters
para1
Broadcast status: 0, off. 1. On；
para2
Broadcast type:0: cannot connect to broadcast. 1, can
connect to the broadcast
para3
The value ranges from 20 to 10240. The default value is
200ms
description
Effective immediately, power off save;
Only slave roles (including single slave, master slave integration, and beacon) can be set. Single
master roles cannot be set.
Example
Query broadcast parameters
Instruction: AT+ADV?
Return: +ADV=1,1,200
To enable unconnected broadcast with an interval of 500ms, run the following command
Instruction: AT+ADV=1,0,500 or AT+ADV=,0,500 (when broadcast is on)
Return: +OK
Turn off the broadcast (the other two parameters remain unchanged)
Instruction: AT+ADV=0,0,500 or AT+ADV=0
Return: +OK
6.3.7 Customize broadcast data
Command
Reply
Inquire
AT+ADVDATA?
+ ADVDATA =[para1],[para2]
Settings
AT+ADVDATA=[para], <para2>
+OK：success
+ERR=[NUM]：Error
Settings
(Not saved)
AT+ADVDATA_CUR=[para], <para2>
Parameters
para1: Data input format (0: ASCII; 1: HEX)
para2: User-defined broadcast data
description
Effective immediately, instruction AT+ADVDATA is saved after power failure, instruction
AT+ADVDATA_CUR is not saved after power failure;
Return NULL if custom broadcast data is not set.
This command is supported only in single-slave roles and master-slave integrated roles.
Single-host roles and Beacon roles do not support this command.
The data is placed in the custom field of the manufacturer, and the user can customize up to 26
bytes;
Use the command "AT+ADVDATA=0" or "AT+ADVDATA=1" to restore the broadcast data to the default
broadcast data;
For applications that require frequent modification of broadcast data, you are strongly advised
to run the AT+ADVDATA_CUR command to prevent Flash parameter modification from affecting the Flash
lifetime.
The APP configuration completion setting function is not supported.

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Example
Set the broadcast data to ebyte
Command :AT+ADVDATA=ebyte
Return :+OK
Set the broadcast data to 0x55 0x66 0x77 0x88 0x99
Instruction :AT+ADVDATA=1,5566778899
Return :+OK
6.3.8 telecast（Long Range）
Command
Reply
Inquire
AT+LE_CODED?
+ LE_CODED =[para]
Setting
AT+ LE_CODED =[para]
+OK：success
+ERR=[NUM]：Error
Parameters
0: Turn off remote broadcast (default)
1: Enable remote broadcast
Description
Effective immediately, power off save;
After remote broadcasting is enabled, if the command "AT+ADV_EXT" is not used to set user
data, the device with the broadcast name is default. The primary role that is in LE CODED
physical layer (set by AT+SCAN_PHY) can scan the device and establish a connection. However,
set the user to extend the broadcast data will become unscannable and unconnected devices;
Beacon role and single master role do not support this directive.
Version A1 does not support this directive.
Example
Query remote broadcast
Instruction :AT+LE_CODED?
Return :+LE_CODED=0
Turn on telecast
Command :AT+LE_CODED=1
Return :+OK
6.3.9 Extended broadcast
Command
Reply
Inquire
AT+ADV_EXT?
+ ADV_EXT =[para1],[para2]
Setting
AT+ ADV_EXT =[para1],[para2]
+OK：success
+ERR=[NUM]：Error
Settings
(Not saved)
AT+ ADV_EXT_CUR =[para1],[para2]
+OK：success
+ERR=[NUM]：Error
Parameters
para1: Large broadcast data length ranging from 0 to 251
para2: indicates the data timeout period. The value ranges from 1 to 5000
Description
Take effect immediately, save power failure (except AT+ ADV_EXT_CUR);
The user can customize the extended broadcast data to be 251 bytes at most. When enabled, the extended
broadcast will become a nameless device, and the module will automatically add the broadcast length

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(LEN) and broadcast type (0xFF) to the data front set by the user, and the device will become
unconnectable and unscannable.
AT+ADV_EXT=0, restore the default extended broadcast;
If this parameter has not been set, +ADV_EXT=NULL is returned.
Use the AT+ ADV_EXT_CUR command to set custom data. After restart, the data from the last AT+ADV_EXT
setting will be used.
The APP configuration completion setting function is not supported. The APP configuration
completion setting function is not supported.
Example
Set the custom extended broadcast data to 100 bytes and the input timeout time to 5000 ms
Instruction :AT+ADV_EXT=100,5000
The previous example is a custom extended broadcast with a length of 100 bytes, and the input timeout
is 5000 ms. In Settings
Input the specified length of broadcast data (input data length cannot be less than or greater
than the length, otherwise the setting fails), and return +OK after reaching the specified length,
as shown below. If the specified TIMEOUT period is reached without reaching the specified input
length, RECEIVE TIMEOUT is returned.
Back:
+OK
INPUT EXT ADV:100
Serial port send 100 bytes:
123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123
4567890
Return:
+OK
6.3.10 Beacon Parameters
Command
Reply
Inquire
AT+BEACON?
+ BEACON =[para1], [para2], [para3], [para4],
[para5]
Setting
AT+ BEACON =<para1>, <para2>, <para3>,
<para4>, <para5>
+OK：Success
+ERR=[NUM]：Error
Parameters
para1:company ID. The default value is 0x4C00
para2:Major UUID. The default is 0x2775
Para3:Minor UUID, 0x848F by default
Para4:1 meter distance reference rssi, default -48, range -90~-10
Para5: custom UUID, the default is 0 xfda50693a4e24fb1afcfc6eb07647825
Description
Take effect immediately. Save power failure.
Example
Query Beacon parameters
Directive :AT+BEACON?
Returns: + BEACON = 4 c00, 2775848 F, - 48 FDA50693A4E24FB1AFCFC6EB07647825
Set Beacon parameters
Instructions: AT + c00 BEACON = 4, 4, 0102030-48, FDA50693A4E24FB1AFCFC6EB07647825Return:+OK

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6.3.11Slave role service
Command
Reply
Inquire
AT+SERVICE?
+ SERVICE =<para1>, <para2>, <para3>, <para4>,
<para5>, <para6>
Setting
AT+ SERVICE=<para1>, <para2>,
<para3>, <para4>, <para5>, <para6>
+OK：succcess
+ERR=[NUM]：Error
Parameter
para1:UUID bits (0:16 bits; 1:128 bits)
para2: module server UUID (third and fourth bytes), length 4
Para3: indicates the module receive channel UUID (the third and fourth bytes of the 128-bit
UUID). The length is 4
Para4: Module send channel UUID (the third and fourth bytes of the 128-bit UUID), length
4
Para5: Wireless AT instruction channel UUID (the third and fourth bytes of the 128-bit UUID),
length 4
Para6: 128-bit base UUID (the third and fourth bytes of the base UUID are replaced with the
UUID of the preceding parameters to form the actual 128bit UUID of the module). The length
is 32
Description
Restart takes effect, power failure save;
This directive is only valid for slave roles (single-slave, master-slave, and Beacon);
The base UUID of 0000xxxx-0000-1000-8000-00805F9B34FB is unavailable.
Example
Example Query the default 16-bit secondary role service
Command :AT+SERVICE?
Return :+SERVICE=0,FFF0,FFF1,FFF2,FFF3
Example Set the 128-bit slave role service
Instruction: the AT + SERVICE = 1000, 1000, 2000, 3000, 4, 9 ECADC240EE5A9E093F3A3B50000406E
Return :+OK
Example Query the configured 128-bit secondary role service
Command :AT+SERVICE?
Returns: + SERVICE = 1000, 1000, 2000, 3000, 4, 9 ECADC240EE5A9E093F3A3B50000406E
6.3.12 Master role scan
Command
Reply
Inquire
AT+SCAN?
+ SCAN=[para1], [para2], [para3]
Setting
AT+ SCAN =[para1], <para2>, <para3>
+OK：success
0 02:83:E1:66:C2:D0 -89
1 9C:19:C2:39:7D:35 -75
……
+ERR=[NUM]：Error
Parameters
para1: Current scanning status. 0: stop. 1: Scanning is being performed
para2: indicates the scanning timeout period. The value ranges from 1 to 65535, in seconds

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Para3: Whether to display the Bluetooth name, 0: no 1: display (default)
Description
Take effect immediately, power failure does not save;
This command takes effect only for the primary role (single master, master slave).
Scanning stops automatically when the number of devices reaches 20 or the scanning timeout
period is reached.
If Observer is already enabled, using this command disables the observer feature.
Example
Example Query scan parameters of the primary role
Instruction: AT+SCAN?
Return: +SCAN=0,20,1
Set the scanning parameters of the main role (start scanning, do not display the Bluetooth
name, scan time 20 seconds)
Command: AT+SCAN=1,20,0
Return: +OK
6.3.13 The Master role scans the physical layer
Command
Reply
Inquire
AT+SCAN_PHY?
+ SCAN=[para]
Setting
AT+ SCAN_PHY =[para]
+OK：success
+ERR=[NUM]：Error
Parameters
0:1M PHY(default)；
1:LE CODED PHY。
Description
Effective immediately, power off save;
If the scanned physical layer of a primary role is set to LE CODED PHY, only secondary devices
at the same physical layer can be scanned and connected to only secondary devices at this
physical layer.
Only the primary role (single-master, master-slave) supports this command.
Example
Example Query scan parameters of the primary role
Command: AT+SCAN_PHY?
Return: +SCAN_PHY=0
Set the physical layer scanned by the primary role to LE CODED PHY
Command: AT+SCAN_PHY=1
Return: +OK
6.3.14 Master role linkage
Command
Reply
Setting
AT+ CONNECT=<para1>, <para2>
+OK：Success
+ERR=[NUM]：Error
Parameters
para1: Returns the serial number or MAC address in the list according to the "AT+SCAN" command
to connect to the specified secondary device.
para2: indicates the MAC address.