/*

  This example  prints the WiFi 101 Shield's MAC address, and
  scans for available WiFi networks using the WiFi 101 Shield.
  Every ten seconds, it scans again. It doesn't actually
  connect to any network, so no encryption scheme is specified.

  Circuit:
   WiFi 101 Shield attached

  created 13 July 2010
  by dlf (Metodo2 srl)
  modified 21 Junn 2012
  by Tom Igoe and Jaymes Dec
*/


#include <SPI.h>
#include <WiFi101_Generic.h>      // https://github.com/khoih-prog/WiFi101_Generic

void setup()
{
  //Initialize serial and wait for port to open:
  Serial.begin(115200);

  while (!Serial && millis() < 5000);

  delay(500);

  // check for the presence of the shield:
  if (WiFi.status() == WL_NO_SHIELD)
  {
    Serial.println("WiFi 101 Shield not present");

    // don't continue:
    while (true);
  }

  // Print WiFi MAC address:
  printMacAddress();

  // scan for existing networks:
  Serial.println("Scanning available networks...");
  listNetworks();
}

void loop()
{
  delay(10000);
  // scan for existing networks:
  Serial.println("Scanning available networks...");
  listNetworks();
}

void printMacAddress()
{
  // the MAC address of your WiFi 101 Shield
  byte mac[6];

  // print your MAC address:
  WiFi.macAddress(mac);
  Serial.print("MAC: ");
  printMacAddress(mac);
}

void listNetworks()
{
  // scan for nearby networks:
  Serial.println("** Scan Networks **");
  int numSsid = WiFi.scanNetworks();

  if (numSsid == -1)
  {
    Serial.println("Couldn't get a WiFi connection");

    while (true);
  }

  // print the list of networks seen:
  Serial.print("number of available networks:");
  Serial.println(numSsid);

  // print the network number and name for each network found:
  for (int thisNet = 0; thisNet < numSsid; thisNet++)
  {
    Serial.print(thisNet);
    Serial.print(") ");
    Serial.print(WiFi.SSID(thisNet));
    Serial.print("\tSignal: ");
    Serial.print(WiFi.RSSI(thisNet));
    Serial.print(" dBm");
    Serial.print("\tEncryption: ");
    printEncryptionType(WiFi.encryptionType(thisNet));
    Serial.flush();
  }
}

void printEncryptionType(int thisType)
{
  // read the encryption type and print out the name:
  switch (thisType)
  {
    case ENC_TYPE_WEP:
      Serial.println("WEP");
      break;

    case ENC_TYPE_TKIP:
      Serial.println("WPA");
      break;

    case ENC_TYPE_CCMP:
      Serial.println("WPA2");
      break;

    case ENC_TYPE_NONE:
      Serial.println("None");
      break;

    case ENC_TYPE_AUTO:
      Serial.println("Auto");
      break;
  }
}

void printMacAddress(byte mac[])
{
  for (int i = 5; i >= 0; i--)
  {
    if (mac[i] < 16)
    {
      Serial.print("0");
    }

    Serial.print(mac[i], HEX);

    if (i > 0)
    {
      Serial.print(":");
    }
  }

  Serial.println();
}