Mesh uses HT40, this uses too many channels. Can I used HT20?

[hassan789]

Mesh uses HT40, this uses too many channels, causing issues with existing Wifi infrastructure in large buildings.
Is it possible to force everything to go down to HT20, so less 2.4GHz channels are used?

Thanks

[ESP_LBB]

Hi hassan789,

Please check this link if it helps: https://docs.espressif.com/projects/esp ... fi-ht20-40

[hassan789]

tried both modes, and it did not work.... was this ever tested?

Code: Select all

esp_wifi_set_mode(WIFI_MODE_APSTA);
esp_wifi_set_bandwidth(ESP_IF_WIFI_AP, WIFI_BW_HT20);


esp_wifi_set_mode(WIFI_MODE_STA);
esp_wifi_set_bandwidth(ESP_IF_WIFI_AP, WIFI_BW_HT20);

[hassan789]

got it to work, doing the following:

Code: Select all

        ESP_ERROR_CHECK(esp_wifi_set_mode(WIFI_MODE_APSTA));
        ESP_ERROR_CHECK(esp_wifi_set_bandwidth(ESP_IF_WIFI_STA, WIFI_BW_HT20));
        ESP_ERROR_CHECK(esp_wifi_set_bandwidth(ESP_IF_WIFI_AP, WIFI_BW_HT20));