| /* | |
| GSM Scan Networks | |
| This example prints out the IMEI number of the modem, | |
| then checks to see if it's connected to a carrier. If so, | |
| it prints the phone number associated with the card. | |
| Then it scans for nearby networks and prints out their signal strengths. | |
| Circuit: | |
| * GSM shield | |
| * SIM card | |
| Created 8 Mar 2012 | |
| by Tom Igoe, implemented by Javier Carazo | |
| Modified 4 Feb 2013 | |
| by Scott Fitzgerald | |
| http://www.arduino.cc/en/Tutorial/GSMToolsGsmScanNetworks | |
| This example code is part of the public domain | |
| */ | |
| // libraries | |
| // PIN Number | |
| // initialize the library instance | |
| GSM gsmAccess; // include a 'true' parameter to enable debugging | |
| GSMScanner scannerNetworks; | |
| GSMModem modemTest; | |
| // Save data variables | |
| String IMEI = ""; | |
| // serial monitor result messages | |
| String errortext = "ERROR"; | |
| void setup() { | |
| // initialize serial communications and wait for port to open: | |
| Serial.begin(9600); | |
| while (!Serial) { | |
| ; // wait for serial port to connect. Needed for Leonardo only | |
| } | |
| Serial.println("GSM networks scanner"); | |
| scannerNetworks.begin(); | |
| // connection state | |
| boolean notConnected = true; | |
| // Start GSM shield | |
| // If your SIM has PIN, pass it as a parameter of begin() in quotes | |
| while (notConnected) { | |
| if (gsmAccess.begin(PINNUMBER) == GSM_READY) { | |
| notConnected = false; | |
| } else { | |
| Serial.println("Not connected"); | |
| delay(1000); | |
| } | |
| } | |
| // get modem parameters | |
| // IMEI, modem unique identifier | |
| Serial.print("Modem IMEI: "); | |
| IMEI = modemTest.getIMEI(); | |
| IMEI.replace("\n", ""); | |
| if (IMEI != NULL) { | |
| Serial.println(IMEI); | |
| } | |
| } | |
| void loop() { | |
| // scan for existing networks, displays a list of networks | |
| Serial.println("Scanning available networks. May take some seconds."); | |
| Serial.println(scannerNetworks.readNetworks()); | |
| // currently connected carrier | |
| Serial.print("Current carrier: "); | |
| Serial.println(scannerNetworks.getCurrentCarrier()); | |
| // returns strength and ber | |
| // signal strength in 0-31 scale. 31 means power > 51dBm | |
| // BER is the Bit Error Rate. 0-7 scale. 99=not detectable | |
| Serial.print("Signal Strength: "); | |
| Serial.print(scannerNetworks.getSignalStrength()); | |
| Serial.println(" [0-31]"); | |
| } | |