Espressif Systems ESP Faq page 14

4.10.99 [Connect] How to troubleshoot the issue that ESP32 series of products cannot connect to
the router over Wi-Fi from the hardware and software aspects?
4.10.100After
wifi:<ba-add>idx:0
ssn:154, winSize:64 and W (798216) wifi:<ba-del>idx several times
every 5 minutes and consumes much more power. Why?
4.10.101Why can't ESP32 keep the Wi-Fi sending rate at a fixed value with the function
esp_wifi_config_80211_tx_rate() to maintain stable transmission?
4.10.102How do I debug the ESP32 station that is connected to a router but does not get an IP
properly?
4.10.103When ESP32 works as a softAP, the station connected to it does not get the IP. How to
debug?
4.10.104In ESP-IDF menuconfig, after Component config > PHY > Max Wi-Fi TX
power(dBm) is configured to adjust the Wi-Fi transmit power, what is the actual power?
For example, what is the actual maximum transmit power when the option is configured to
17 dBm?
4.10.105ESP-IDF currently supports connecting to Chinese SSID routers with UTF-8 encoding. Is
there a way to connect to Chinese SSID routers with GB2312 encoding?
4.10.106After connecting to the router, ESP32 consumes much power in an idle state, with an
average current of about 60 mA. How to troubleshoot the issue?
4.10.107How to configure the Wi-Fi country code when the ESP end product needs to be sold
worldwide?
4.10.108Sometimes the rate drops or even a disconnection occurs after a period of iperf testing.
What is the reason and how to solve it?
4.10.109Why is this log frequently printed when the phone connects to the ESP32-S3 that works as
the Wi-Fi AP based on the ESP-IDF v5.0 SDK?
4.10.110Does ESP32 support the coexistence of the network port (LAN8720) and Wi-Fi
4.10.111How can I optimize ESP32's slow IP address acquisition after Wi-Fi is connected in a
weak network environment or interference environment?
4.10.112When ESP32/ESP32-S2/ESP32-S3 series chips work in SoftAP mode, they are suscep-
tible to disconnect from mobile phones and PCs of other manufacturers when they are
communicating with each other. How can I optimize this situation?
4.10.113What is the value range of ESP32 Wi-Fi TX power?
4.10.114How do I get Wi-Fi RSSI when using ESP32?
4.10.115Does ESP32 support WPA3-Enterprise?
4.10.116Does ESP modules support WAPI (Wireless LAN Authentication and Privacy
4.10.117How can I increase the time for scanning routers when using ESP32 as the Wi-Fi Station
to connect routers?
4.10.118Does ESP32 support LDPC？
5 Hardware related
5.1 Chip Comparison
5.1.1 What is the difference between ESP32 with a single core and ESP32 with dual cores re-
garding programming method, feature performance, power consumption, and so on?
5.1.2 What's the difference between ESP32 v3.0 and previous chip revisions in software and
hardware?
5.1.3 Can the GPIO34 ~ GPIO39 of ESP32 only be set to input mode?
5.1.4 Does ESP32 support a driver for Linux?
5.1.5 What is the meaning of the acquired data when you scan the data matrix on the module's
shielding case?
5.1.6 Can VDD3P3_RTC of ESP32 support independent battery power supply?
5.1.7 What is the difference between ESP32-PICO-D4, ESP32-PICO-V3, and ESP32-PICO-
V3-02?
5.1.8 Does ESP8266 support 32 MHz crystal?
5.1.9 Do ESP products support Zephyr?
5.1.10 How to identify the chip revision from the chip silk marking?
5.2 Development board
5.2.1 How long does it take for the ESP-WROOM-02D module to restart after the reset signal?
being connected to
(ifx:0,
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the router, ESP32
f0:2f:74:9b:20:78),
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prints W (798209)
tid:0,
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(Wifi-AP)?149
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Infrastructure)?150
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151
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. 154
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