Promi-SD User Manual – Appendix A. AT Commands
A-2
Copyright © 2006 Sena Technologies, Inc. All rights reserved.
Terminology
AT Command
AT command set is the
H T
de facto standard
T H
H
T
language
T
H
for controlling
H T
modems
T H
. The AT command set was developed
by
H T
Hayes
T
H
and is recognized by virtually all
H T
personal computer
T
H
modems. Promi-SD provides the extended AT
command set to control and configure the serial parameters and Bluetooth connection.
AT Response
Promi-SD replies to AT commands with 4 kinds of message, ‘OK’, ‘ERROR’, ‘CONNECT’ and ‘DISCONNECT’.
Operation Mode
Mode0: Waiting for AT commands
Mode1: Attempting to connect to the last connected Bluetooth device
Mode2: Waiting for the connection from the last connected Bluetooth device
Mode3: Waiting for the connection from any other Bluetooth devices
Operation Status
Standby: Waiting for AT commands
Pending: Executing tasks
Connect: Transmitting data
Security
Authentication: Pin code (or Pass key)
Encryption: Data encryption
Symbols
The symbols are used for the description of command syntax as follows:
Symbol
Meaning
ASCII Code
Carriage return
0x0D
Line feed
0x0A
Carriage Line feed
112233445566
Bluetooth device address
n or m
One digit decimal number
to
Timeout in second
