diff options
author | Cristian Maglie <c.maglie@bug.st> | 2012-10-22 09:17:24 +0200 |
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committer | Cristian Maglie <c.maglie@bug.st> | 2012-10-22 09:17:24 +0200 |
commit | e03133b1b43fd445d3ed79a83d12786ef351cd35 (patch) | |
tree | b8c10307727d0cb1571b1eb139f2f98537e29995 /libraries/WiFi/examples/ScanNetworks/ScanNetworks.ino | |
parent | 46d658fac872f7aa8856c792b1744b74f2d9946d (diff) |
Moved WiFi library in the proper place
Diffstat (limited to 'libraries/WiFi/examples/ScanNetworks/ScanNetworks.ino')
-rw-r--r-- | libraries/WiFi/examples/ScanNetworks/ScanNetworks.ino | 119 |
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; + } +} + + + |