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- #include <Adafruit_GPS.h>
- // what's the name of the hardware serial port?
- #define GPSSerial Serial1
- // Connect to the GPS on the hardware port
- Adafruit_GPS GPS(&GPSSerial);
- // 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 false
- uint32_t timer = millis();
- void setup()
- {
- //while (!Serial); // uncomment to have the sketch wait until Serial is ready
- // connect at 115200 so we can read the GPS fast enough and echo without dropping chars
- // also spit it out
- Serial.begin(115200);
- Serial.println("Adafruit GPS library basic test!");
- // 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);
- delay(1000);
- // Ask for firmware version
- GPSSerial.println(PMTK_Q_RELEASE);
- }
- void loop() // run over and over again
- {
- // 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.print("\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("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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