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PAN9520 Wi-Fi Module
WIFI_COUNTRY_POLICY_AUTO
If the PAN9520 is configured as station, the used country code setting is adapted to the one of
the access point (AP), to which the station is connected.
Please note that not only the country code itself is changed, but also the
channel range.
After the station has been disconnected from the AP, the country code setting is reset to the
configured one.
If the module is in station mode, not connected to an AP and performs a scan, this scans
actively on channels schan to min{(schan + nchan -1), 11} of the configured country
code setting. The remaining channels schan + nchan to 14 (or 12 to 14 if
schan + nchan >= 12) are scanned passively. This ensures that regulations are not violated,
even if the configured country code does not match the location of the device.
Please note that hidden SSIDs on channels 12 to 14 can never be found, if
WIFI_COUNTRY_POLICY_AUTO
If the module is in station mode, connected to an AP and performs a scan, the module uses the
country code settings of the AP. Hence, an active scan is performed on schan to
(schan + nchan -1) of the AP's country code settings and a passive scan is performed on
the remaining channels.
If the module is set to station/AP coexistence mode, the configured country code settings are
used if the device has not been connected to another AP. If the device is connected to another
AP, the country code settings of the AP are used (also for the module's AP).
If the module is configured as AP, this setting has no effect and the configured country code
settings are always used.
For further details please refer to
guides/wifi.html#wi-fi-country-code.
WIFI_COUNTRY_POLICY_MANUAL
If the setting WIFI_COUNTRY_POLICY_MANUAL is used, the configured country code settings
are used in any case. Only channels in the valid range can be scanned actively.
For further details please refer to
guides/wifi.html#wi-fi-country-code.
Module Integration Guide Rev. 1.1
6 Regulatory and Certification Information
is used.
https://docs.espressif.com/projects/esp-idf/en/v4.2/esp32/api-
https://docs.espressif.com/projects/esp-idf/en/v4.2/esp32/api-
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