1 files changed, 119 insertions, 0 deletions
diff --git a/libraries/WiFi/examples/ScanNetworks/ScanNetworks.ino b/libraries/WiFi/examples/ScanNetworks/ScanNetworks.ino
new file mode 100644
index 0000000..93b3000
--- /dev/null
+++ b/libraries/WiFi/examples/ScanNetworks/ScanNetworks.ino
@@ -0,0 +1,119 @@
+/*
+ 
+ This example  prints the Wifi shield's MAC address, and
+ scans for available Wifi networks using the Wifi shield.
+ Every ten seconds, it scans again. It doesn't actually 
+ connect to any network, so no encryption scheme is specified.
+ 
+ Circuit:
+ * WiFi shield attached
+ 
+ created 13 July 2010
+ by dlf (Metodo2 srl)
+ modified 21 Junn 2012
+ by Tom Igoe and Jaymes Dec
+ */
+
+
+#include <SPI.h>
+#include <WiFi.h>
+
+void setup() {
+  //Initialize serial and wait for port to open:
+  Serial.begin(9600); 
+  while (!Serial) {
+    ; // wait for serial port to connect. Needed for Leonardo only
+  }
+
+  // check for the presence of the shield:
+  if (WiFi.status() == WL_NO_SHIELD) {
+    Serial.println("WiFi 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 shield
+  byte mac[6];                     
+
+  // print your MAC address:
+  WiFi.macAddress(mac);
+  Serial.print("MAC: ");
+  Serial.print(mac[5],HEX);
+  Serial.print(":");
+  Serial.print(mac[4],HEX);
+  Serial.print(":");
+  Serial.print(mac[3],HEX);
+  Serial.print(":");
+  Serial.print(mac[2],HEX);
+  Serial.print(":");
+  Serial.print(mac[1],HEX);
+  Serial.print(":");
+  Serial.println(mac[0],HEX);
+}
+
+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));
+  }
+}
+
+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;
+  } 
+}
+
+
+