| .. _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 :kconfig:`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 |
