Wi-Fi AP-STA mode
Overview
The Wi-Fi AP-STA mode of the ESP32 allows it to function as both an Access Point (AP) and a Station (STA) simultaneously. This sample demonstrates how to configure and utilize AP-STA mode.
Configuration and usage of following interfaces is shown in sample.
AP mode: AP mode is configured and enabled. DHCPv4 server is also configured to assign IP addresses to the joining station.STA mode: Provide the SSID and PSK of you router
In this demo, AP-STA mode is enabled using CONFIG_ESP32_WIFI_AP_STA_MODE.
An additional Wi-Fi node is added in the .overlay file. The net_if.
In the sample code, initially, the AP mode is enabled, followed by enabling the STA mode.
The driver checks if AP mode was previously enabled. If so, it transitions
the ESP32 into AP-STA mode to support both modes and attempts to connect to the
AP specified by the provided SSID and PSK.
Requirements
This example should be able to run on any commonly available ESP32-DevKitC-WROOM development board without any extra hardware.
To enable or disable AP-STA mode, modify the CONFIG_ESP32_WIFI_AP_STA_MODE
parameter in the boards/esp32_devkitc_wroom_procpu.conf file of the demo. Moreover, an
extra Wi-Fi node is included in boards/esp32_devkitc_wroom_procpu.overlay.
By default, AP-STA mode is disabled.
Building, Flashing and Running
west build -b esp32_devkitc_wroom/esp32/procpu samples/boards/espressif/deep_sleep
west flash
Sample Output
*** Booting Zephyr OS build v3.7.0-rc3-104-gd1e5c5b3f9b7 ***
[00:00:05.171,000] <inf> MAIN: Turning on AP Mode
[00:00:05.172,000] <dbg> net_dhcpv4_server: net_dhcpv4_server_start: Started DHCPv4 server, address pool:
[00:00:05.172,000] <dbg> net_dhcpv4_server: net_dhcpv4_server_start: 0: 192.168.4.11
[00:00:05.172,000] <dbg> net_dhcpv4_server: net_dhcpv4_server_start: 1: 192.168.4.12
[00:00:05.172,000] <dbg> net_dhcpv4_server: net_dhcpv4_server_start: 2: 192.168.4.13
[00:00:05.172,000] <dbg> net_dhcpv4_server: net_dhcpv4_server_start: 3: 192.168.4.14
[00:00:05.172,000] <inf> MAIN: DHCPv4 server started...
[00:00:05.350,000] <inf> MAIN: AP Mode is enabled. Waiting for sta to connect ESP32-AP
[00:00:05.350,000] <inf> MAIN: Connecting to SSID: ZIN-Dummy
[00:00:09.498,000] <inf> net_dhcpv4: Received: 192.168.43.44
[00:00:09.499,000] <inf> MAIN: Connected to ZIN-Dummy
[00:00:32.739,000] <inf> MAIN: station: 7C:50:79:17:89:19 joined
[00:00:32.832,000] <dbg> net_dhcpv4_server: dhcpv4_handle_discover: DHCPv4 processing Discover - reserved 192.168.4.11
[00:00:33.839,000] <dbg> net_dhcpv4_server: dhcpv4_handle_request: DHCPv4 processing Request - allocated 192.168.4.11