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README.rst
.. _esp32_wifi_station: Espressif ESP32 WiFi Station ############################ Overview ******** This sample demonstrates how to use ESP32 to connect to a WiFi network as a station device. To configure WiFi credentials, edit ``prj.conf``. Enabling the ``net_shell`` module provides a set of commands to test the connection. See :ref:`network shell <net_shell>` for more details. Building and Running ******************** Make sure you have the ESP32 connected over USB port. The sample can be built and flashed as follows: .. code-block:: console west build -b esp32 samples/boards/esp32/wifi_station west flash --esp-device /dev/ttyUSB0 Sample Output ============= To check output of this sample, any serial console program can be used (i.e. on Linux minicom, putty, screen, etc) This example uses ``picocom`` on the serial port ``/dev/ttyUSB0``: .. code-block:: console $ picocom /dev/ttyUSB0 - 115200 .. code-block:: console I (288) boot: Loaded app from partition at offset 0x10000 I (288) boot: Disabling RNG early entropy source... I (611) wifi:wifi driver task: 3ffb2be8, prio:2, stack:3584, core=0 I (613) wifi:wifi firmware version: 9c89486 I (613) wifi:wifi certification version: v7.0 I (614) wifi:config NVS flash: disabled I (618) wifi:config nano formating: disabled I (622) wifi:Init data frame dynamic rx buffer num: 32 I (627) wifi:Init management frame dynamic rx buffer num: 32 I (632) wifi:Init management short buffer num: 32 I (636) wifi:Init dynamic tx buffer num: 32 I (640) wifi:Init static rx buffer size: 1600 I (645) wifi:Init static rx buffer num: 10 I (648) wifi:Init dynamic rx buffer num: 32 phy_version: 4350, 18c5e94, Jul 27 2020, 21:04:07, 0, 2 I (783) wifi:mode : softAP (24:6f:28:80:32:e9) I (784) wifi:Total power save buffer number: 16 I (784) wifi:Init max length of beacon: 752/752 I (788) wifi:Init max length of beacon: 752/752 *** Booting Zephyr OS build zephyr-v2.4.0-49-g4da59e1678f7 *** I (798) wifi:mode : sta (24:6f:28:80:32:e8) I (1046) wifi:new:<4,1>, old:<1,1>, ap:<255,255>, sta:<4,1>, prof:1 I (1694) wifi:state: init -> auth (b0) I (1711) wifi:state: auth -> assoc (0) I (1717) wifi:state: assoc -> run (10) I (1745) wifi:connected with myssid, aid = 4, channel 4, 40U, bssid = d8:07:b6:dd:47:7a I (1745) wifi:security: WPA2-PSK, phy: bgn, rssi: -57 I (1747) wifi:pm start, type: 1 esp_event: WIFI STA start esp_event: WIFI STA connected I (1813) wifi:AP's beacon interval = 102400 us, DTIM period = 1 net_dhcpv4: Received: 192.168.68.102 esp32_wifi_sta: Your address: 192.168.68.102 esp32_wifi_sta: Lease time: 7200 seconds esp32_wifi_sta: Subnet: 255.255.255.0 esp32_wifi_sta: Router: 192.168.68.1 Sample console interaction ========================== If the :option:`CONFIG_NET_SHELL` option is set, network shell functions can be used to check internet connection. .. code-block:: console shell> net ping 8.8.8.8 PING 8.8.8.8 28 bytes from 8.8.8.8 to 192.168.68.102: icmp_seq=0 ttl=118 time=19 ms 28 bytes from 8.8.8.8 to 192.168.68.102: icmp_seq=1 ttl=118 time=16 ms 28 bytes from 8.8.8.8 to 192.168.68.102: icmp_seq=2 ttl=118 time=21 ms