WiFi - WiFi.begin()


Initializes the WiFi library’s network settings and provides the current status.


WiFi.begin(ssid, pass);
WiFi.begin(ssid, keyIndex, key);


ssid: the SSID (Service Set Identifier) is the name of the WiFi network you want to connect to.

keyIndex: WEP encrypted networks can hold up to 4 different keys. This identifies which key you are going to use.

key: a hexadecimal string used as a security code for WEP encrypted networks.

pass: WPA encrypted networks use a password in the form of a string for security.


WL_CONNECTED when connected to a network WL_IDLE_STATUS when not connected to a network, but powered on


#include <WiFi.h>

//SSID of your network
char ssid[] = "yourNetwork";
//password of your WPA Network
char pass[] = "secretPassword";

void setup()
 WiFi.begin(ssid, pass);

void loop () {}