Initializes the WiFi library's network settings and provides the current status.
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.
Corrections, suggestions, and new documentation should be posted to the Forum.
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