IP Configuration

lib/WiFiNINA/examples/ScanNetworks/ScanNetworks.ino

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+/*
+ This example  prints the board's MAC address, and
+ scans for available WiFi networks using the NINA module.
+ Every ten seconds, it scans again. It doesn't actually
+ connect to any network, so no encryption scheme is specified.
+
+ Circuit:
+ * Board with NINA module (Arduino MKR WiFi 1010, MKR VIDOR 4000 and UNO WiFi Rev.2)
+
+ created 13 July 2010
+ by dlf (Metodo2 srl)
+ modified 21 Junn 2012
+ by Tom Igoe and Jaymes Dec
+ */
+
+
+#include <SPI.h>
+#include <WiFiNINA.h>
+
+void setup() {
+  //Initialize serial and wait for port to open:
+  Serial.begin(9600);
+  while (!Serial) {
+    ; // wait for serial port to connect. Needed for native USB port only
+  }
+
+  // check for the WiFi module:
+  if (WiFi.status() == WL_NO_MODULE) {
+    Serial.println("Communication with WiFi module failed!");
+    // don't continue
+    while (true);
+  }
+
+  String fv = WiFi.firmwareVersion();
+  if (fv < WIFI_FIRMWARE_LATEST_VERSION) {
+    Serial.println("Please upgrade the firmware");
+  }
+
+  // print your MAC address:
+  byte mac[6];
+  WiFi.macAddress(mac);
+  Serial.print("MAC: ");
+  printMacAddress(mac);
+}
+
+void loop() {
+  // scan for existing networks:
+  Serial.println("Scanning available networks...");
+  listNetworks();
+  delay(10000);
+}
+
+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;
+    case ENC_TYPE_UNKNOWN:
+    default:
+      Serial.println("Unknown");
+      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();
+}