Technical information

Chapter 2: AT+i Commands Reference
May 31, 2008 AT+i Commands Reference Manual 2-163
+iWROM - Enable Roaming in WiFi
+iWPSI - Periodic WiFi Scan Interval
passphrase =<pass> If WLSI (SSID) is not empty, WPA-PSK security is enabled for
WiFi connections and pass is used in generating the WPA-PSK
encryption key. The allowed value for pass is an ASCII string
containing 8-63 characters.
Default: Empty.
Result Code:
I/OK If pass is an empty or legal pass-phrase.
I/ERROR Otherwise.
AT+i WL PP ~passphrase Temporarily set the wireless LAN WPA-PSK pass-phrase to
passphrase.
AT+iWLPP? Report the current pass-phrase. The reported value consists of '*'
characters. The number of '*' characters reflects the number of
characters in the pass-phrase. If a pass-phrase is not defined, only
<CRLF> are returned. The reply is followed by I/OK.
AT+iWLPP=? Returns the message 'String'. The reply is followed by I/OK.
Syntax: AT+iWROM=<n>
Sets W24 to Roaming mode.
Parameters: n=0 | 1.
n=0 Disable Roaming mode.
n=1 Enable Roaming mode.
Default: n=0.
Result Code:
I/OK If n is a legal value.
I/ERROR Otherwise.
AT+iWROM? Returns the current WROM value followed by I/OK.
AT+iWROM=? Returns the message '0-1'. The reply is followed by I/OK.
Syntax: AT+iWPSI=n
Sets the time interval - n - between consecutive scans that W24
performs for APs in its vicinity.
Parameters: n=1-3600 seconds.
Default: n=5 seconds.