ATCommand
To get a ‘better’ Bluetooth experience on BLE 4.1 modules, we highly recommand you to
update the newest firmware first.
AT is the abbreviation of attention. AT command is the communication command used to configure
Bluetooth parameters. It begins with AT, end with <CR+LF> (carriage return and line feed).
NOTE: <CR+LF> is not a part of AT Command.
ATCommandList
AT Command Function Parameters <X>
T+ROLE=<X> Set Bluetooth
mode
“?” Query Bluetooth working mode
“ROLE_CENTRAL” Set as the central device
“ROLE_PERIPHERAL” Set as the peripheral device
T+NETWORK=<X> Set network
mode
“?” Query the network mode
“P2P” Set to peer to peer connection
“STAR” Set to star network
T+MIN_INTERVAL=<X>
Set the
minimum
communication
interval
“?” Query the current minimum communication interval (10~99999ms)
T+MAX_INTERVAL=<X>
Set the
maximum
communication
interval
“?” Query the current maximum communication interval (10~99999ms)
T+BIND=<X> Set binding
Bluetooth
address
“?” Query the current binding MAC address
e.g.: 0x0017ea9397e1 Set Bluetooth MAC address in need
T+CMODE=<X> Set BLE
connection
mode
“?” Query the current connection mode
“UNIQUE” Specify the connection mode
“ANYONE” Set to free connection
T+MAC=<X> Query the
Bluetooth
address “?” Query the current Bluetooth MAC address
T+NAME=<X> Set the name “?” Query the Bluetooth device name
“DFBLEduino2”
T+SETTING=<X> Modify/Reset
to default <X>
mode
“?” Query the current setting
“DEFAULT” Reset to initial setting
“DEFPERIPHERAL” Reset to initial slave setting
“DEFCENTRAL” Reset to initial host setting
T+USB_MONITOR=<X> Turn the USB
monitor
ON/OFF
“?” Query the current USB monitor
“ON” Turn on the USB monitor
