esp-idf/examples/wifi/antenna

Supported Targets	ESP32	ESP32-C2	ESP32-C3	ESP32-C6	ESP32-S2	ESP32-S3

Wi-Fi antenna soft switch Example

(See the README.md file in the upper level 'examples' directory for more information about examples.)

This example demonstrates how to use multi-antenna software switching for ESP.

How to use example

Configure the project

Open the project configuration menu (idf.py menuconfig).

In the Example Configuration menu:

• Set the Wi-Fi configuration.
  • Set WiFi SSID.
  • Set WiFi Password.

Optional: If you need, change the other options according to your requirements.

Build and Flash

Build the project and flash it to the board, then run the monitor tool to view the serial output:

Run idf.py -p PORT flash monitor to build, flash and monitor the project.

(To exit the serial monitor, type Ctrl-].)

See the Getting Started Guide for all the steps to configure and use the ESP-IDF to build projects.

• ESP-IDF Getting Started Guide on ESP32
• ESP-IDF Getting Started Guide on ESP32-C2
• ESP-IDF Getting Started Guide on ESP32-C3
• ESP-IDF Getting Started Guide on ESP32-C6
• ESP-IDF Getting Started Guide on ESP32-S2
• ESP-IDF Getting Started Guide on ESP32-S3

Example Output

Note that the output, in particular the order of the output, may vary depending on the environment.

Console output if station connects to AP successfully:

I (589) multi-antenna example: ESP_WIFI_MODE_STA
I (599) wifi: wifi driver task: 3ffc08b4, prio:23, stack:3584, core=0
I (599) system_api: Base MAC address is not set, read default base MAC address from BLK0 of EFUSE
I (599) system_api: Base MAC address is not set, read default base MAC address from BLK0 of EFUSE
I (629) wifi: wifi firmware version: 2d94f02
I (629) wifi: config NVS flash: enabled
I (629) wifi: config nano formating: disabled
I (629) wifi: Init dynamic tx buffer num: 32
I (629) wifi: Init data frame dynamic rx buffer num: 32
I (639) wifi: Init management frame dynamic rx buffer num: 32
I (639) wifi: Init management short buffer num: 32
I (649) wifi: Init static rx buffer size: 1600
I (649) wifi: Init static rx buffer num: 10
I (659) wifi: Init dynamic rx buffer num: 32
I (759) phy: phy_version: 4180, cb3948e, Sep 12 2019, 16:39:13, 0, 0
I (769) wifi: mode : sta (30:ae:a4:d9:bc:c4)
I (769) multi-antenna example: wifi_init_sta finished.
I (889) wifi: new:<6,0>, old:<1,0>, ap:<255,255>, sta:<6,0>, prof:1
I (889) wifi: state: init -> auth (b0)
I (899) wifi: state: auth -> assoc (0)
I (909) wifi: state: assoc -> run (10)
I (939) wifi: connected with #!/bin/test, aid = 1, channel 6, BW20, bssid = ac:9e:17:7e:31:40
I (939) wifi: security type: 3, phy: bgn, rssi: -68
I (949) wifi: pm start, type: 1

I (1029) wifi: AP's beacon interval = 102400 us, DTIM period = 3
I (2089) esp_netif_handlers: sta ip: 192.168.77.89, mask: 255.255.255.0, gw: 192.168.77.1
I (2089) multi-antenna example: got ip:192.168.77.89
I (2089) multi-antenna example: connected to ap SSID:myssid password:mypassword
I (12268) multi-antenna example: GPIO: [0].pin = 21, [1].pin = 22
I (18568) multi-antenna example: rx mode = 1, tx mode = 1, ant0_en = 0, ant1_en = 1
I (19068) multi-antenna example: rx mode = 1, tx mode = 1, ant0_en = 0, ant1_en = 1
I (19568) multi-antenna example: rx mode = 1, tx mode = 1, ant0_en = 0, ant1_en = 1
I (20068) multi-antenna example: rx mode = 1, tx mode = 1, ant0_en = 0, ant1_en = 1
I (20568) multi-antenna example: rx mode = 1, tx mode = 1, ant0_en = 0, ant1_en = 1
I (21068) multi-antenna example: rx mode = 1, tx mode = 1, ant0_en = 0, ant1_en = 1
I (21568) multi-antenna example: rx mode = 1, tx mode = 1, ant0_en = 0, ant1_en = 1
I (22068) multi-antenna example: rx mode = 1, tx mode = 1, ant0_en = 0, ant1_en = 1
I (22568) multi-antenna example: rx mode = 1, tx mode = 1, ant0_en = 0, ant1_en = 1
I (23068) multi-antenna example: rx mode = 1, tx mode = 1, ant0_en = 0, ant1_en = 1
I (23568) multi-antenna example: rx mode = 1, tx mode = 1, ant0_en = 0, ant1_en = 1

Console output if the station failed to connect to AP:

I (589) multi-antenna example: ESP_WIFI_MODE_STA
I (599) wifi: wifi driver task: 3ffc08b4, prio:23, stack:3584, core=0
I (599) system_api: Base MAC address is not set, read default base MAC address from BLK0 of EFUSE
I (599) system_api: Base MAC address is not set, read default base MAC address from BLK0 of EFUSE
I (629) wifi: wifi firmware version: 2d94f02
I (629) wifi: config NVS flash: enabled
I (629) wifi: config nano formating: disabled
I (629) wifi: Init dynamic tx buffer num: 32
I (629) wifi: Init data frame dynamic rx buffer num: 32
I (639) wifi: Init management frame dynamic rx buffer num: 32
I (639) wifi: Init management short buffer num: 32
I (649) wifi: Init static rx buffer size: 1600
I (649) wifi: Init static rx buffer num: 10
I (659) wifi: Init dynamic rx buffer num: 32
I (759) phy: phy_version: 4180, cb3948e, Sep 12 2019, 16:39:13, 0, 0
I (759) wifi: mode : sta (30:ae:a4:d9:bc:c4)
I (769) multi-antenna example: wifi_init_sta finished.
I (889) wifi: new:<6,0>, old:<1,0>, ap:<255,255>, sta:<6,0>, prof:1
I (889) wifi: state: init -> auth (b0)
I (1889) wifi: state: auth -> init (200)
I (1889) wifi: new:<6,0>, old:<6,0>, ap:<255,255>, sta:<6,0>, prof:1
I (1889) multi-antenna example: retry to connect to the AP
I (1899) multi-antenna example: connect to the AP fail
I (3949) multi-antenna example: retry to connect to the AP
I (3949) multi-antenna example: connect to the AP fail
I (4069) wifi: new:<6,0>, old:<6,0>, ap:<255,255>, sta:<6,0>, prof:1
I (4069) wifi: state: init -> auth (b0)
I (5069) wifi: state: auth -> init (200)
I (5069) wifi: new:<6,0>, old:<6,0>, ap:<255,255>, sta:<6,0>, prof:1
I (5069) multi-antenna example: retry to connect to the AP
I (5069) multi-antenna example: connect to the AP fail
I (7129) multi-antenna example: retry to connect to the AP
I (7129) multi-antenna example: connect to the AP fail
I (7249) wifi: new:<6,0>, old:<6,0>, ap:<255,255>, sta:<6,0>, prof:1
I (7249) wifi: state: init -> auth (b0)
I (8249) wifi: state: auth -> init (200)
I (8249) wifi: new:<6,0>, old:<6,0>, ap:<255,255>, sta:<6,0>, prof:1
I (8249) multi-antenna example: retry to connect to the AP
I (8249) multi-antenna example: connect to the AP fail
I (10299) multi-antenna example: connect to the AP fail
I (10299) multi-antenna example: Failed to connect to SSID:myssid, password:mypassword

Troubleshooting

For any technical queries, please open an issue on GitHub. We will get back to you soon.