Hi Hugo.

For the ESP32, there is this function to set the max power: https://docs.espressif.com/projects/esp-idf/en/latest/api-reference/network/esp_wifi.html#_CPPv425esp_wifi_set_max_tx_power6int8_t

For ESP8266:

WiFi.setOutputPower(0); // this sets wifi to lowest power

WiFi.setOutputPower(20.5); // this sets wifi to highest power

https://links2004.github.io/Arduino/d0/d52/class_e_s_p8266_wi_fi_generic_class.html#ae94015cbccaa5e13fe2d2ee3756e9047

I hope this helps. (I haven’t tried this functions).

Regards,

Sara

Thank you, Sara !!!