Editing esp (section)

===ESP.WiFi===
[https://arduino-esp8266.readthedocs.io/en/latest/esp8266wifi/station-class.html#table-of-contents ESP8266WiFi Documentation]<br>

ESP8266 WiFi stack will save WiFi configuration to flash memory, and automatically reconnect to the same network on restart. This happens even if you aren't using WiFi functions.
You can disable persistence by adding '''WiFi.persistent(false);''' in the beginning of your WiFi initialization code.
To disable WiFi in a sketch where you don't need it you can use '''WiFi.mode(WIFI_OFF);'''.<br>

====Functions====
=====hostname=====
;Get the DHCP hostname assigned to ESP station.

 WiFi.hostname()
Function returns String type. Default hostname is in format ESP_24xMAC where 24xMAC are the last 24 bits of module’s MAC address.

The hostname may be changed using the following function:
 WiFi.hostname(aHostname)
Input parameter aHostname may be a type of char*, const char* or String. Maximum length of assigned hostname is 32 characters. Function returns either true or false depending on result. For instance, if the limit of 32 characters is exceeded, function will return false without assigning the new hostname.

Example code:
 <nowiki>Serial.printf("Default hostname: %s\n", WiFi.hostname().c_str());
WiFi.hostname("Station_Tester_02");
Serial.printf("New hostname: %s\n", WiFi.hostname().c_str());</nowiki>



====WiFi.scanNetworks(true)====
The optional parameter, true, is an instruction to scan in asynchronous mode, i.e. trigger scanning process, do not wait for result (processing will be done in background) and move to the next line of code.<br>
[https://arduino-esp8266.readthedocs.io/en/latest/esp8266wifi/scan-examples.html Example Code]<br>

====WiFi.disconnect()====
WiFi.disconnect() shuts down a connection to an access point that module may have automatically made using previously saved credentials.<br>