User guide

Redpine Signals, Inc. Proprietary and Confidential. Page 33
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This command is used to join a network. The SSID is selected from the list of
SSID‟s returned after performing scan operation. It is also used to create an
IBSS network in creator mode.
Prerequisite
The developer is expected to execute “Set Network Type” and Pre Shared Key (if
Access Point is in Secure mode) commands prior to the execution of this
command
Command
at+rsi_join
Usage
at+rsi_join=SSID,TxRate,TxPower\r\n
Parameters
SSID: The SSID of the network. The maximum length of the SSID is 32
characters. This can be the SSID of the Access Point or Client to which the
module has to connect to in Infrastructure or IBSS Joiner modes respectively. It
can also be the SSID of the ad-hoc network that is to be created by the module.
TxPower: This fixes the Transmit Power level of the module. This value can be
set as follows:
0 – Low power (7dBm)
1 – Medium power (10dBm)
2 – High power (16 to 17dBm)
TxRate: Rate at which the data has to be transmitted. Refer to the table below
for the various data rates and the corresponding values.
TxPower and TxRate are optional parameters. If they are not supplied, the
default values of „2‟ and „0‟ are taken for these parameters respectively.