AT Command Manual
v1.5
©2013 LM Technologies Ltd
www.lm-technologies.com
Page 5 of 26
<name> - Command name as shown in below table listing all the available commands.
<parameters> - The parameters are required for most of the commands. The parameter may be
character, integer and character sequence (BD address, Pin code, Name etc) depending on the
command operation.
<cr> - This character terminates the command packet and signals the device to proceed with
command execution.
2.4
Command Response
The AT commands will have the response in the below format:
<parameter,value><command_response>
<parameter,value> - This sequence will be part of response to the commands sent in query format.
e.g. STOP1 where STOP is the parameter related to serial port stop bits and 1 is the parameter value.
<command_response> - The command response can be any one of following types:
<cr,lf>OK<cr,lf> - If the command has been sent to Bluetooth device in correct format and is
applicable in current device operating mode.
<cr,lf>ERROR<cr,lf> - If the command has been sent in wrong format/command is invalid/
command is not applicable in current device operating mode.
<cr,lf> - If the command response has been disabled.
2.5
Host Events
Host device connected to Bluetooth device will receive an event sequence on occurrence of
Bluetooth related events. Refer to section 2.9 Host Events Description for details.
2.6
Operation Mode
The device will always be in one of the below operating modes:
2.7
Command Types
Command Type
Parameter
Command
Device Information
Test
AT
Firmware Version
AT+VER
Settings
AT+ENQ
Reset
Restore Factory Settings
AT+RESET
Serial Port
Baud Rate
AT+BAUD
Stop Bits
AT+STOP
Parity bits
AT+PAR
Flow Control
AT+FLOW
Online Data Mode
Data transfer mode when device is in connected state.
Command Mode
Accepts AT command for device configuration.
Online Command Mode Accepts almost all AT commands for device configuration in connected
state.
