Espressif Systems ESP

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Chapter 4. Software framework

4.10.47 [Connect] What are the specications of Wi-Fi parameters when using Smart-

Cong?

SmartCon󰝘g is a method of con󰝘guring Wi-Fi parameters via local network broadcasting. Users can

send Wi-Fi account and password to the device through a matching APP. SmartCon󰝘g network con󰝘g-

uration has some requirements on Wi-Fi parameters:

• SSID name: Supports Chinese characters and English letters, digits, with a maximum length of 32

bytes.

• Wi-Fi password: 8-64 digits, case-sensitive.

• Wi-Fi security encryption: Currently, SmartCon󰝘g supports WPA, WPA2, and WEP encryption

methods, and does not support open methods without encryption.

4.10.48 [Connect] Does ESP8266 Wi-Fi support WPA2 enterprise-level encryption？

• Yes. Please refer to example wpa2_enterprise.

• To build RADIUS server, you can use FreeRADIUS.

4.10.49 [Connect] What are the low-power modes for ESP32 to maintain its connection

to Wi-Fi?

• In such scenarios, the chip switches between Active mode and Modem-sleep mode automatically, making the

power consumption also varies in these two modes.

• The ESP32 supports Wi-Fi keep-alive in Light-sleep mode, and the auto wakeup interval is determined by the

DTIM parameter.

• Please 󰝘nd examples in ESP-IDF - > examples - > wi󰝘 - > power_save.

4.10.50 Do Espressif’s chips support WPA3?

• ESP32 series: WPA3 is supported from esp-idf release/v4.1 and enabled by default. Go to menucon󰝘g >

Component con󰝘g > Wi-Fi for con󰝘guration.

• ESP8266: WPA3 is supported from the release/v3.4 branch of ESP8266_RTOS_SDK and enabled by default.

Go to menucon󰝘g > Component con󰝘g > Wi-Fi for con󰝘guration.

4.10.51 [Connect] How does the device choose AP when there are multiple identical SSIDs

in the current environment?

• The device connects to the 󰝘rst scanned AP.

• If you expect to sort APs by signal quality and etc., use the scan function to 󰝘lter manually.

• If you expect to connect to a speci󰝘ed AP, add BSSID information in connection parameters.

4.10.52 [Connect] Does ESP8266 have repeater solutions?

• We have not o󰝚cially released such application solutions yet.

• For relay related applications, please 󰝘nd on github. The relay rates should be set basing on real tests.

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