User guide

Redpine Signals, Inc. Proprietary and Confidential. Page 23
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3.2.6 Next Scan Results
Description
This command is used in conjunction with the at+rsi_numscan and at+rsi_scan
commands. It is valid only if the at+rsi_numscan command has been used to
configure the number of scan results to be returned by the module. The module
responds by returning the scanned Access Points. For example if
at+rsi_numscan command is set to 5, then the at+rsi_scan command issued and
there are 12 access points scanned by the module, then the at+rsi_scan
command will return to the host the information about the first 5 access points
out of the 12 scanned nodes, in order of decreasing RSSI . If an
at+rsi_nextscan command is given after the scan command, it will return to the
host the information about the next 5 access points in order of decreasing RSSI.
If another at+rsi_nextscan command is given again, it will return to the host the
information about the remaining 2 access points. Finally, if an at+rsi_nextscan
command is given again, OK\r\n would be returned. In summary, the module
will return the maximum number of access points that it can scan, but in
multiple installments. This command should be issued only after the at+rsi_scan
command.
Command
at+rsi_nextscan
Usage
at+rsi_nextscan\r\n
Parameters
No parameters
Response
Result Code
Description
OK<uSSID1uMode1uRSSIval1>
<uSSID2uMode2uRSSIval2>…
uSSID (32 bytes, ASCII):SSID of
the Access Point. Filler bytes
(0x00) are put to complete 32
bytes, if actual SSID length is not
32 bytes.
uMode(1 byte, hex):Security
Mode of the scanned Access
Point.
0x00 – Open (No Security)
0x01 – WPA
0x02 – WPA2
0x03 – WEP
uRssival(1 byte, hex):
Absolute value of the RSSI