Instructions

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Espressif Systems
ESP8266
AT Instruction Set
8.
AT+CWLAP – List available APs
AT+CWLAP - Lists available APs
Example
•
AT+CWLAP
List of all available AP's detected by ESP8266
•
AT+CWLAP="WiFi", "ca:d7:19:d8:a6:44", 6
Find AP with specific SSID and MAC at specific channel.
•
AT+CWLAP="WiFi"
Find AP with specific SSID
Command
AT+CWLAP=<ssid>[, <mac>, <ch>]
Response
+CWLAP:<ecn>, <ssid>, <rssi>, <mac>, <ch>, <freq offset>, <freq calibration>
OK
Parameters
<ecn>
0 : OPEN
1 : WEP
2 : WPA_PSK
3 : WPA2_PSK
4 : WPA_WPA2_PSK
5 : WPA2_Enterprise (AT can NOT connect to WPA2_Enterprise AP)
<ssid> string, SSID of AP
<rssi> signal strength
<mac> string, MAC address
<freq offset> frequency offset of AP, unit: KHz. The value of <freq offset> / 2.4
to get the value as ppm
<freq calibration> calibration for frequency offset
Command
AT+CWLAP
Response
+CWLAP:<ecn>, <ssid>, <rssi>, <mac>, <ch>, <freq offset>, <freq calibration>
OK
Parameters
The same as above
Espressif Systems  / Friday, July 15, 201630 73