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WiFi
WiFi.scanNetworks()
Description
Scans for available WiFi networks and returns the discovered number
Syntax
WiFi.scanNetworks(); 
Parameters
none
Returns
byte : number of discovered networks
Example
  #include <SPI.h>
#include <WiFi.h>
char ssid[] = "yourNetwork";     // the name of your network
int status = WL_IDLE_STATUS;     // the Wifi radio's status
byte mac[6];                     // the MAC address of your Wifi shield
void setup()
{
 Serial.begin(9600);
 status = WiFi.begin(ssid);
 if ( status != WL_CONNECTED) { 
    Serial.println("Couldn't get a wifi connection");
    while(true);
  } 
  // if you are connected, print your MAC address:
  else {
  Serial.println("** Scan Networks **");
  byte numSsid = WiFi.scanNetworks();
  Serial.print("SSID List:");
  Serial.println(numSsid);
  }
}
void loop () {}
 
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