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- // GPS-based Location Tracker and GSM Transmitter
- // by erek (2015)
- #include <Adafruit_GPS.h>
- #include <AltSoftSerial.h>
- // Include the GSM library
- #include <GSM.h>
- #define PINNUMBER ""
- // initialize the library instance
- GSM gsmAccess;
- GSM_SMS sms;
- // modem verification object
- GSMModem modem;
- // IMEI variable
- String IMEI = "";
- // If you're using a GPS module:
- // Connect the GPS Power pin to 5V
- // Connect the GPS Ground pin to ground
- // If using software serial (sketch example default):
- // Connect the GPS TX (transmit) pin to Digital 3
- // Connect the GPS RX (receive) pin to Digital 2
- // If using hardware serial (e.g. Arduino Mega):
- // Connect the GPS TX (transmit) pin to Arduino RX1, RX2 or RX3
- // Connect the GPS RX (receive) pin to matching TX1, TX2 or TX3
- // If you're using the Adafruit GPS shield, change
- // AltSoftSerial mySerial(3, 2); -> AltSoftSerial mySerial(8, 7);
- // and make sure the switch is set to SoftSerial
- // If using software serial, keep this line enabled
- // (you can change the pin numbers to match your wiring):
- AltSoftSerial mySerial(3, 2);
- // If using hardware serial (e.g. Arduino Mega), comment out the
- // above AltSoftSerial line, and enable this line instead
- // (you can change the Serial number to match your wiring):
- //HardwareSerial mySerial = Serial1;
- Adafruit_GPS GPS(&mySerial);
- // Set GPSECHO to 'false' to turn off echoing the GPS data to the Serial console
- // Set to 'true' if you want to debug and listen to the raw GPS sentences.
- #define GPSECHO true
- // this keeps track of whether we're using the interrupt
- // off by default!
- boolean usingInterrupt = false;
- void useInterrupt(boolean); // Func prototype keeps Arduino 0023 happy
- void setup()
- {
- // connect at 115200 so we can read the GPS fast enough and echo without dropping chars
- // also spit it out
- Serial.begin(115200);
- //Serial.begin(9600);
- modem.begin();
- // 9600 NMEA is the default baud rate for Adafruit MTK GPS's- some use 4800
- GPS.begin(9600);
- // uncomment this line to turn on RMC (recommended minimum) and GGA (fix data) including altitude
- GPS.sendCommand(PMTK_SET_NMEA_OUTPUT_RMCGGA);
- // uncomment this line to turn on only the "minimum recommended" data
- //GPS.sendCommand(PMTK_SET_NMEA_OUTPUT_RMCONLY);
- // For parsing data, we don't suggest using anything but either RMC only or RMC+GGA since
- // the parser doesn't care about other sentences at this time
- // Set the update rate
- GPS.sendCommand(PMTK_SET_NMEA_UPDATE_1HZ); // 1 Hz update rate
- // For the parsing code to work nicely and have time to sort thru the data, and
- // print it out we don't suggest using anything higher than 1 Hz
- // Request updates on antenna status, comment out to keep quiet
- GPS.sendCommand(PGCMD_ANTENNA);
- // the nice thing about this code is you can have a timer0 interrupt go off
- // every 1 millisecond, and read data from the GPS for you. that makes the
- // loop code a heck of a lot easier!
- useInterrupt(true);
- delay(1000);
- // Ask for firmware version
- mySerial.println(PMTK_Q_RELEASE);
- }
- // Interrupt is called once a millisecond, looks for any new GPS data, and stores it
- SIGNAL(TIMER0_COMPA_vect) {
- char c = GPS.read();
- // if you want to debug, this is a good time to do it!
- #ifdef UDR0
- if (GPSECHO)
- if (c) UDR0 = c;
- // writing direct to UDR0 is much much faster than Serial.print
- // but only one character can be written at a time.
- #endif
- }
- void useInterrupt(boolean v) {
- if (v) {
- // Timer0 is already used for millis() - we'll just interrupt somewhere
- // in the middle and call the "Compare A" function above
- OCR0A = 0xAF;
- TIMSK0 |= _BV(OCIE0A);
- usingInterrupt = true;
- } else {
- // do not call the interrupt function COMPA anymore
- TIMSK0 &= ~_BV(OCIE0A);
- usingInterrupt = false;
- }
- }
- uint32_t timer = millis();
- void loop() // run over and over again
- {
- IMEI = modem.getIMEI();
- // show IMEI in serial monitor
- Serial.println("Modem's IMEI: " + IMEI);
- // in case you are not using the interrupt above, you'll
- // need to 'hand query' the GPS, not suggested :(
- if (! usingInterrupt) {
- // read data from the GPS in the 'main loop'
- char c = GPS.read();
- // if you want to debug, this is a good time to do it!
- if (GPSECHO)
- if (c) Serial.print(c);
- }
- // if a sentence is received, we can check the checksum, parse it...
- if (GPS.newNMEAreceived()) {
- // a tricky thing here is if we print the NMEA sentence, or data
- // we end up not listening and catching other sentences!
- // so be very wary if using OUTPUT_ALLDATA and trytng to print out data
- //Serial.println(GPS.lastNMEA()); // this also sets the newNMEAreceived() flag to false
- if (!GPS.parse(GPS.lastNMEA())) // this also sets the newNMEAreceived() flag to false
- return; // we can fail to parse a sentence in which case we should just wait for another
- }
- // if millis() or timer wraps around, we'll just reset it
- if (timer > millis()) timer = millis();
- // approximately every 2 seconds or so, print out the current stats
- if (millis() - timer > 2000) {
- timer = millis(); // reset the timer
- Serial.println("\nTime: ");
- Serial.print(GPS.hour, DEC); Serial.print(':');
- Serial.print(GPS.minute, DEC); Serial.print(':');
- Serial.print(GPS.seconds, DEC); Serial.print('.');
- Serial.println(GPS.milliseconds);
- Serial.print("Date: ");
- Serial.print(GPS.day, DEC); Serial.print('/');
- Serial.print(GPS.month, DEC); Serial.print("/20");
- Serial.println(GPS.year, DEC);
- Serial.print("Fix: "); Serial.print((int)GPS.fix);
- Serial.print(" quality: "); Serial.println((int)GPS.fixquality);
- /**************
- if (GPS.fix) {
- Serial.print("Location: ");
- Serial.print(GPS.latitude, 4); Serial.print(GPS.lat);
- Serial.print(", ");
- Serial.print(GPS.longitude, 4); Serial.println(GPS.lon);
- Serial.print("Location (in degrees, works with Google Maps): ");
- Serial.print(GPS.latitudeDegrees, 4);
- Serial.print(", ");
- Serial.println(GPS.longitudeDegrees, 4);
- Serial.print("Speed (knots): "); Serial.println(GPS.speed);
- Serial.print("Angle: "); Serial.println(GPS.angle);
- Serial.print("Altitude: "); Serial.println(GPS.altitude);
- Serial.print("Satellites: "); Serial.println((int)GPS.satellites);
- }
- **************/
- }
- }
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