AT Command Reference

Modified on Tue, 27 Oct, 2015 at 11:33 AM

This document describes the configuration commands to control the operation of following LM Bluetooth devices:

LM400 module
LM780 module
LM072 module
LM071 Module
LM048 adapter
LM058 adapter
LM048SPA adapter
LM048v2 adapter
LM058v2 adapter

(See our adapters or modules here for more product details)

History

The AT command set was developed by Hayes to control the operation of telephony modems.

The command set has been extended to control Bluetooth device primary operations such as inquiry, connection setup/ disconnection etc. Other AT commands are also available to control the serial port setup and other user-friendly features.

The Bluetooth device powers up in unconnected state and can be configured using UART interface similar to telephony modems.

The device will act as Bluetooth slave by default and can be inquired/connected to from other Bluetooth master devices in the neighbourhood. The AT commands can be used to change the default behavior and settings for the current as well as future power up cycles.