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5 Configuration and Operation
This chapter gives some guidelines on how to perform basic configuration and operation. There
are several request packets that can be used to configure the module. Many of these request
packets take an Integer parameter called <store >. If this parameter is set to 1 the setting will be
applied directly and will also apply after a power off/on cycle. If this parameter is set to 0 the
setting will be applied immediately but it will not be applied when the module starts up in the
next power cycle.
Note: There is a constraint on some AT commands, which means that the module must
be restarted for the command to take affect. For those commands the <store > pa-
rameter must always be 1. For applications that always configure the module at
startup, it is not necessary to store settings in the startup database. It is intended for
applications where the module is configured once before installation.
5.1 LED Indication
The LED indicates what mode is currently active and what activity that is currently in progress.
The following color indications are used.
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Green: The current mode is data mode and no connection attempts are in progress.
Red: The module could not boot properly, or is in rescue mode.
Orange: The current mode is AT mode.
Purple: A connection attempt is in progress.
Blue: A connection is currently active.
Blue blinking: A connection is active and data is transmitted or received over air.
Red blinking: Buffer overflow, parity or framing error detected on the UART.
A connection is identified as a connection to an access point. A blue led does not mean that any
peer connections have been established.
5.2 Creating Serial Connections and Sending Data
See chapter 8.3 for examples on how to create connections and transfer data.
5.3 WLAN Security
The OWSPA311g module supports different authentication and encryption methods. The fol-
lowing authentication methods are supported:
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Open connection
Shared secret
WPA and WPA2 Pre-shared key (PSK)
The following encryption methods are supported:
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No encryption
WEP 64
Version 1.6.6 - 2009-11
13
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