FSC-BT910x General AT Command Set

Description

This guide is provided for engineers to develop FSC-BT910x series Bluetooth modules.

Module Default Parameters

Name	<Model_Number>-XXXX Example: FSC-BT9101-1234
LE-Name	<Model_Number>-LE-XXXX Example: FSC-BT9101-LE-1234
PIN Code	0000
Secure Simple Pairing Mode	OFF
Service UUID	FFF0
Write UUID	FFF2
Notify UUID	FFF1
UART Baudrate	115200/8/N/1

AT Command Description

Specification Description

Applicable to the entire document

{} : Content included in {…} is optional
<< : COMMAND sent by the host to the module
>> : Module responds to the host’s RESPONSE/EVENT

AT Command Format

AT+Command{=Param1{,Param2{,Param3...}}}<CR><LF>

All commands start with AT and end with <CR><LF>
<CR> represents carriage return, corresponding to HEX 0x0D
<LF> represents line feed, corresponding to HEX 0x0A
If the instruction contains parameters, the parameters should be separated by =
If the instruction contains parameters, the parameters should be separated by ,
If the command has a response, the response starts with <CR><LF> and ends with <CR><LF>
The module should always return the command execution result (returns OK on success, returns ERROR on failure)

Example: Read module Bluetooth name

Send: <<AT+NAME<CR><LF>
Response: >><CR><LF>+NAME=FSC-BT9101<CR><LF>
Response: >><CR><LF>OK<CR><LF>

Write unsupported Baud rate

Send: <<AT+BAUD=0<CR><LF>
Response: >><CR><LF>ERROR<CR><LF>

Event Format

<CR><LF>+Indication{=Param1{,Param2{,Param3...}}}<CR><LF>

All events start with <CR><LF> and end with <CR><LF>
If the event contains parameters, they should be placed after “=”
If the event contains multiple parameters, they should be separated by “,”

Example: Return current SPP connection status in command mode

Response: >><CR><LF>+SPPSTAT=3<CR><LF>

Command Table

General Commands

AT+HELP - Query firmware functions and command description

Command	AT+HELP
Response	<MODULE DEFAULT PARAMETER> <COMMAND SUMMARY: DESCRIPTION: PROFILE CATEGORY>
Description	Use the help command to obtain basic summary information

AT - UART Communication Test

Command	AT
Response	OK
Description	Test UART communication between the host and the module after power-on or Baud rate change

Example:
<< AT
>> OK

AT+REBOOT - Software Reset

Command	AT+REBOOT
Response	OK
Description	The module will reboot

Example:
<< AT+REBOOT
>> OK

AT+RESTORE - Restore Factory Settings

Command	AT+RESTORE
Response	OK
Description	The module will restore factory settings

Example:
<< AT+RESTORE
>> OK

AT+BTEN - Read/Write Current Bluetooth Operating Mode

Command	AT+BTEN{=Param}
`Param`	Enable Bluetooth (0/1, default:0) 0: Disconnect all connections, disable discoverable/connectable 1: Enable discovery/connection
Response	+BTEN=Param
Description	Read/Write current Bluetooth operating mode

AT+NAME - Read/Write BR/EDR Bluetooth Name

Command	AT+NAME{=Param{,Param1}}
`Param`	BR/EDR Bluetooth Name (1~29 Bytes ASCII)
`Param1`	Enable MAC address suffix (0~2, default:0) 0: Disable suffix 1: Enable suffix “XXXX” (last 4 Bytes of MAC address) 2: Enable suffix “XXXXXX” (last 6 Bytes of MAC address)
Response	+NAME=Param
`Param`	Bluetooth Name
Description	Write local name if parameter existence, otherwise read current local name

Example:
Set BR/EDR Bluetooth name and disable suffix
<< AT+NAME=ABC,0
>> OK

Set BR/EDR Bluetooth name to “ABC” and automatically add address suffix
<< AT+NAME=ABC,1
>> OK

Read BR/EDR Bluetooth name
<< AT+NAME
>> +NAME=ABC-XXXX
>> OK

AT+LENAME - Read/Write BLE Bluetooth Name

Command	AT+LENAME{=Param{,Param1}}
`Param`	BLE Bluetooth Name (1~29 Bytes ASCII)
`Param1`	Enable MAC address suffix (0~2, default:0) 0: Disable suffix 1: Enable suffix “-XXXX” (last 4 Bytes of MAC address) 2: Enable suffix “-XXXXXX” (last 6 Bytes of MAC address)
Response	+LENAME=Param
`Param`	Bluetooth Name
Description	Set the BLE Bluetooth name, use the sub-parameter to display the address suffix

AT+PIN - Read/Write Pairing PIN code

Command	AT+PIN{=Param}
`Param`	Pairing PIN code (4~15 Bytes ASCII, default:0000)
Response	+PIN=Param
Description	The pairing PIN code is valid when +SSP=0

Example:
Read pairing PIN code
<< AT+PIN
>> +PIN=0000
>> OK

Change pairing PIN code to 1234
<< AT+PIN=1234
>> OK

AT+PLIST - Read/Clear Paired Records

Command	AT+PLIST{=Param}
`Param`	(0 / 1~8) (0) Clear all paired records (1~8) Clear the paired record with the specified index
Response1	+PLIST=Param, Param1
`Param`	(1~8) Paired device index
`Param1`	(MAC) MAC address of the paired device
Response2	+PLIST= Paired record query completed
Description	If a parameter exists, delete the corresponding pairing information; otherwise, only read the pairing list

Example: Read module’s paired records
<< AT+PLIST
>> +PLIST=1,1C5CF226D773
+PLIST=2,A0BC30075421
>> OK

Example: Clear all paired records of the module
<< AT+PLIST=0
>> OK

AT+BAUD - Read/Write UART Baud rate

Command	AT+BAUD{=Param}
`Param`	Baud rate (9600/19200/38400/57600/115200/ 230400/460800/921600/256000/512000/1000000, default:115200)
Response	+BAUD=Param
`Param`	Baud rate
Description	The module will switch Baud rate immediately after receiving this command
Note	After sending the Baud rate setting command, please switch the serial port Baud rate to communicate with the module

Example:
Read UART Baud rate
<< AT+BAUD
>> +BAUD=115200
>> OK

Set UART Baud rate
<< AT+BAUD=230400
>> OK

AT+VER - Read Firmware Version

Command	AT+VER
Response	+VER{=Param,Param1}
`Param`	Firmware version
`Param1`	Module model

Example:
<< AT+VER
>> +VER=8.0.0,FSC-BT9101
>> OK

AT+ADDR - Read BR/EDR Bluetooth MAC Address

Command	AT+ADDR
Response	+ADDR=Param
`Param`	Module’s BR/EDR Bluetooth MAC address (12 Bytes ASCII)

Example:
<< AT+ADDR
>> +ADDR=DC0D30010203
>> OK

AT+LEADDR - Read BLE Bluetooth MAC Address

Command	AT+LEADDR
Response	+LEADDR=Param
`Param`	Module’s BLE Bluetooth MAC address (12 Bytes ASCII)

AT+COD: Read/Write Class Of Device

Command	AT+COD=Param
`Param`	Class of device (6 bytes ASCII, default:240404 Handsfree device)
Response	+COD=Param
Note	Restart the module to apply the change

Related configurations refer to COD.

AT+TPMODE - Enable/Disable Throughput Mode

Command	AT+TPMODE{=Param}
`Param`	Mode (0~1, default:0) 0: Command mode \| 1: Throughput mode
Response	+TPMODE=Param
Description	When connected under SPP/GATT profile and throughput mode is on, AT commands will be disabled, every byte received via UART will be sent to the remote end

AT+FLOWCTL - Enable/Disable UART Flow Control

Command	AT+FLOWCTL{=Param}
`Param`	Option (0~1, default:0) 0: Disable flow control \| 1: Enable flow control
Response	+FLOWCTL=Param
Description	Enable/Disable UART flow control

AT+SSP - Enable/Disable Secure Simple Pairing

Command	AT+SSP{=Param}
`Param`	PROFILE mode (0~1, default:0) 0: Disable SSP \| 1: Enable SSP
Response	+SSP=Param
Note	Requires restart to take effect

AT+MODE - Read/Write Bluetooth Profile

Command	AT+MODE{=Param}
`Param`	Pairing mode (0~4, default:4) (0) NONE PROFILE (1) SPP PROFILE (2) HID PROFILE (3) BLE PROFILE (4) ALL PROFILE
Response	+MODE=Param

AT+AUTOCONN - Set Bluetooth Power-on Reconnection

Command	AT+AUTOCONN{=Param}
`Param`	0: Disable auto-reconnection 1: Enable auto-reconnection
Response	+AUTOCONN=Param
Description	After power-on, the module will attempt to establish connections with devices in the paired list according to the set PROFILE

AT+PIOCFG - Enable/Disable IO Control Module

Command	AT+PIOCFG{=Param,Param1}
`Param`	0: Disable command/transmission mode switch function 1: Enable command/transmission mode switch function
`Param1`	0: Disable Bluetooth disconnect function 1: Enable Bluetooth disconnect function
Response	+PIOCFG=Param
Description	Use pins to control transmission mode and connection status
Note	Requires restart to take effect after changing status

AT+DSCA - Disconnect All Connections

Command	AT+DSCA
Description	Module disconnects all Bluetooth connections with remote devices, used in command mode

AT+SCAN - Scan Nearby Devices

Command	AT+SCAN{=Param{,Param1}}
`Param`	Scan type (0~2) 0: Stop scan 1: Scan nearby BR/EDR devices 2: Scan nearby BLE devices
`Param1`	(1~48) Scan period. unit:1.28s, default:12.8s
Description	Format description reference: +SCAN - Scan Result

AT+SECURITY - Enable/Disable Security Verification

Command	AT+SECURITY{=Param}
`Param`	Mode (0~1, default:0) 0: Security verification off 1: Security verification on
Response	+SECURITY=Param
Description	Enable/Disable security verification
Note	Requires restart to take effect

Example:
Enable security verification
<< AT+SECURITY=1
>> OK

Get security verification information
<< AT+SECURITY
>> +SECURITY=1
OK

AT+TXPOWER - Read/Write Transmit Power

Command	AT+TXPOWER{=Param}
`Param`	Transmit power (0~6, default:3） 0: -12dBm 1: -8dBm 2: -4dBm 3: 0dBm 4: 4dBm 5: 8dBm 6: 10dBm
Response	+TXPOWER=Param
`Param`	Transmit power
Description	Modify transmit power, requires restart to take effect after command setting

Example:
Read transmit power
<< AT+TXPOWER
>> +TXPOWER=3
>> OK

Set transmit power to 10dBm
<< AT+TXPOWER=6
>> OK

AT+UARTCFG - Read/Write UART Configuration

Command	AT+UARTCFG{=Param}
`Param`	Configuration (0~5,default:0) bit0: 0 - 1 stop bit 1 - 2 stop bits bit2~bit1: 00 - None 01 - Odd 10 - Even
Response	+UARTCFG=Param
`Param`	Configuration (0~5)
Description	Modify UART configuration (stop bits and parity bit)

Example:
Get current UART configuration
<< AT+UARTCFG=0
>> OK

Set UART odd parity
<< AT+UARTCFG=2
>> OK

AT+LINKCFG - Automatic Search Link Configuration

Command	AT+LINKCFG{=Param}
`Param`	Configuration (0~2,default:0) 0: Disable automatic search link 1: SPP automatic search link 2: BLE automatic search link
Description	If this command is configured, the module will automatically search for links based on the configuration

AT+RSSICFG - Read/Write RSSI Configuration

Command	AT+RSSICFG{=Param{,Param1}}
`Param`	High RSSI value
`Param1`	Low RSSI value
Description	PIN34 is pulled low when signal strength is greater than `Param` PIN34 is pulled high when signal strength is less than `Param1` Level remains unchanged when signal strength is between `Param` ~ `Param1`

Example: Configure -30~-60 signal strength indication
<< AT+RSSICFG=30,60
>> OK

SPP Commands

AT+SPPSTAT - Read SPP Status

Command	AT+SPPSTAT
Response	+SPPSTAT=Param
Description	Format description reference: +SPPSTAT - SPP Status

AT+SPPCFG - Read/Write SPP Configuration

Command	AT+SPPCFG{=Param}
`Param`	Configuration (0~1, default:0) 0: Disable SPP dynamic registration 1: Enable SPP dynamic registration
Response	+SPPCFG=Param
Description	After enabling dynamic registration, the module will register the SPP service when connecting and unregister the SPP service when disconnecting

AT+SPPCONN - Establish SPP Connection

Command	AT+SPPCONN{=Param}
`Param`	Target device MAC address (12 Bytes ASCII)

Example: Initiate connection to Bluetooth device with address 112233445566
<< AT+SPPCONN=112233445566
>> OK

AT+SPPDISC - Disconnect SPP Connection

Command	AT+SPPDISC
Description	Disconnect current SPP connection with remote device

AT+SPPSEND - Send Data Via SPP

Command	AT+SPPSEND{=Param{,Param1}}
`Param`	Payload length (1~236)
`Param1`	Payload (1~236 Bytes UTF8)
Description	If throughput mode is on, this command will be disabled

Example: Send data “1234567890” to remote device via SPP
<< AT+SPPSEND=10,1234567890
>> OK

GATT Commands

AT+GATTSTAT - Read GATT Status

Command	AT+GATTSTAT
Response	+GATTSTAT=Param
Description	Format description reference: +GATTSTAT - Connection Status Report

AT+ADVADDR - Enable/Disable Broadcast Address

Command	AT+ADVADDR{=Param}
`Param`	Mode (0~1, default:1) 0: Disable broadcast address 1: Enable broadcast address
Response	+ADVADDR=Param
Description	Enable/Disable broadcast address

AT+IBEACON - Enable/Disable iBeacon Broadcast

Command	AT+IBEACON{=Param}
`Param`	Mode (0~1, default:0) 0: Disable iBeacon broadcast 1: Enable iBeacon broadcast
Response	+IBEACON=Param
Description	Enable/Disable iBeacon broadcast

AT+ADVDATA - Read/Write BLE Broadcast 0xFF Data

Command	AT+ADVDATA{=Param}
`Param`	Manufacturer defined broadcast data (data length not exceeding 26)
Response	+ADVDATA=Param
`Param`	Tag is broadcast data of 0xFF
Description	The manufacturer’s custom broadcast data tag is 0xFF
Note	To enable module broadcast custom data, set AT+IBEACON=1 first, then set custom broadcast data

Example:
Read manufacturer custom broadcast data content, \x is HEX data
<< AT+ADVDATA
>> +ADVDATA=\x03\x01\x02
>> OK

Write manufacturer custom broadcast data content, \x is HEX data
<< AT+ADVDATA=\x03\x01\x02
>> OK

AT+ADBLE - Enable/Disable AndroidBLE

Command	AT+ADBLE{=Param}
`Param`	Mode (0~1, default:1) 0: Disable AndroidBLE 1: Enable AndroidBLE
Response	+ADBLE=Param
Description	When Enable on, SPP and BLE will have two different addresses When Disable, SPP and BLE will share the same address

AT+UUIDCFG - Read/Write UUID

Command	AT+UUIDCFG{=Param{,Param1}{,Param2}}
`Param`	Service UUID (default:0000)
`Param1`	Write UUID (default:0000)
`Param2`	Notify UUID (default: 0000)
Response	+UUIDCFG=Param,Param1,Param2
Description	Custom data transmission reset UUID, supports 32/128 bit UUID. Default parameters: Service UUID = 0xFFF0 Write UUID = 0XFFF2 Notify UUID = 0XFFF1

AT+GATTSEND - Send Data Via GATT

Command	AT+GATTSEND{=Param{,Param1}}
`Param`	Payload length (1~236)
`Param1`	Payload (1~236 Bytes UTF8)
Description	If throughput mode is on, this command will be disabled

Example: Send data “1234567890” to remote device via GATT
<< AT+GATTSEND=10,1234567890
>> OK

AT+LESTAT - Read LE Status

Command	AT+LESTAT
Response	+LESTAT=Param
Description	Format description reference: +LESTAT - Connection Status Report

AT+LECCONN - Initiate Connection to Specified Address

Command	AT+LECCONN{=Param{,Param1}{,Param2}{,Param3}}
`Param`	12-byte device address + 1-byte address type
`Param1`	Communication service UUID
`Param2`	Communication write characteristic UUID
`Param3`	Communication notify characteristic UUID
Response	OK
Description	Initiate connection to specified device, parameters consist of 12 bytes (device address) and 1 byte (address type). Generally, address type is “0” or “1”. Address type acquisition method: Use the second parameter returned by AT+SCAN scan, example: +SCAN=0,0,DC0D30001ED4,-65,10,FSC-BT946 Connection command: AT+LECCONN=DC0D30001ED40

Example:
Connect to specified device, 0 is address type
<< AT+LECCONN=DC0D3000039E0
>> OK

Initiate connection to specified address, use FFF0, FFF2, FFF1 for communication
<< AT+LECCONN=DC0D3000039E0,FFF0,FFF2,FFF1
>> OK

AT+LESEND - Send Data to Remote Device

Command	AT+LESEND=Param1,Param2
`Param1`	Payload length (1~236)
`Param2`	Payload (1~236 Bytes UTF8)
Response	OK
Description	If throughput mode is on, this command will be disabled

Example:
Send data “1234567890” to remote BLE device
<< AT+LESEND=10,1234567890
>> OK

HID Commands

AT+HIDSTAT - Read HID Status

Command	AT+HIDSTAT
Response	+HIDSTAT=Param
Description	Format description reference: +HIDSTAT - HID Status

AT+HIDCONN - Establish HID Connection

Command	AT+HIDCONN{=Param}
`Param`	Target device MAC address (12 Bytes ASCII)

AT+HIDDISC - Disconnect HID Connection

Command	AT+HIDDISC
Description	Disconnect current HID connection with remote device

AT+HIDOSK - Show/Hide Keyboard

Command	AT+HIDOSK
Description	Show/Hide Keyboard (IOS Only)

AT+HIDMODE - Read/Write HID Mode

Command	AT+HIDMODE{=Param}
`Param`	HID keyboard input mode (0~1), default 1 (0) HEX key code (1) ASCII key code (English)
Note	The module can support various keyboard languages through specific firmware, such as: TURKEY SPAIN PORTUGAL FRANCE GERMANY ITALY CZECH JAPAN

AT+HIDDLY - Read/Write HID Transmission Interval

Command	AT+HIDDLY{=Param}
`Param`	HID report period in millisecond, default 10 ms

AT+HIDSEND - Send Data Via HID

Command	AT+HIDSEND{=Param{,Param1}}
`Param`	Report length
`Param1`	Report payload
Note	For special key code: 0x0D -> ENTER 0x08 -> BACKSPACE 0x09 -> TAB 0x20 -> SPACE
Description	If throughput mode is on, this command will be disabled

Example: Send character ‘A’ to remote device (on AT+HIDMODE=1)
>> AT+HIDSEND=1,A
<< OK
Example: Send character ‘A’ to remote device (on AT+HIDMODE=0)
<< AT+HIDSEND=4, xA1 x01 x00 x04
>> OK
Note: Data is HEX, corresponding actual data as follows:
41 54 2B 48 49 44 53 45 4E 44 3D 34 2C A1 01 00 04 0d 0a
Where:
A1 : report start
01 : page id 1
00 : modifier
04 : key code
The module will automatically send key release events

Events Table

+SPPSTAT - SPP Status

Format	+SPPSTAT=Param
`Param`	(0) Unsupported (1) Standby (2) Connecting (3) Connected

+SCAN - Scan Result

Format1	+SCAN={ : Start scanning
Format2	+SCAN =Param,Param1,Param2,Param3,Param4,Param5
`Param`	List index
`Param1`	Address type (1 byte)
`Param2`	Address (12 bytes)
`Param3`	RSSI
`Param4`	Device name length
`Param5`	Device name
Format3	+SCAN=} : Stop scanning

Example:
Scan devices
<< AT+SCAN=1
>> +SCAN={
>> +SCAN=0,1,70CFC9A98840,-43,24,LE-Bose QuietControl 30
>> +SCAN=1,1,DC0D30001ED4,-65,10,WEWQ-45AE
>> +SCAN=}

+GATTSTAT - Connection Status Report

Indication	+GATTSTAT=Param
`Param`	(0) Unsupported (1) Standby (2) Connecting (3) Connected
Description	In command mode, when module connection status changes, actively reported via +GATTSTAT

Example:
Connection successful
>> +GATTSTAT=3

+LESTAT - Connection Status Report

Indication	+LESTAT=Param
`Param`	(0) Unsupported (1) Standby (2) Connecting (3) Connected
Description	In AT Command mode, when module connection status changes, actively reported via +LESTAT

Example:
Connection successful
>> +LESTAT=3

+HIDSTAT - HID Status

Format	+HIDSTAT=Param
`Param`	(0) Unsupported (1) Standby (2) Connecting (3) Connected

Application and Development

Please refer to:

FSC-BT910x User Guide

This guide is intended to provide technical support and resource references for the product development and mass production based on FSC-BT910x series modules. It includes hardware design references, functional description, quick development kits, quick start, obtain firmware version, typical application development examples, and firmware upgrade methods, etc.

Contact Information

Shenzhen Feasycom Co.,Ltd.

Address : Rm 508, Building, Fenghuang Zhigu, NO.50, Tiezai Road, Xixiang, Baoan Dist, Shenzhen, 518100, China.

Telphone : 86-755-23062695

Sales Service : sales@feasycom.com

Support : support@feasycom.com

Home Page : www.feasycom.com

Support Forum : forum.feasycom.com

Appendix

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