v2.2.3

examples/Automatic_NMEA/Example3_getLatestNMEA_GPGGA-VTG-RMC-ZDA/Example3_getLatestNMEA_GPGGA-VTG-RMC-ZDA.ino

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+/*
+  Get the NMEA sentence using getLatestNMEAGPxxx (GGA, VTG, RMC, ZDA)
+  By: Paul Clark
+  SparkFun Electronics
+  Date: March 2nd, 2021
+  License: MIT. See license file for more information but you can
+  basically do whatever you want with this code.
+
+  This example shows how to turn on/off the NMEA sentences being output over I2C.
+  It then demonstrates how to use the new getLatestNMEAGPxxx function to retrieve the latest GPGGA message.
+  getLatestNMEAGPxxx returns immediately - it is not blocking.
+  It returns:
+    0 if no data is available
+    1 if the data is valid but is stale (you have read it before)
+    2 if the data is valid and fresh
+
+  If the module is using multiple GNSS constellations, the GGA message will be prefixed with Talker ID "GN" instead of "GP".
+  The library includes getLatestNMEAGNxxx functions too.
+  This example shows how to use both functions - and how to change the Talker ID so the GNGGA messages become GPGGA etc..
+
+  Feel like supporting open source hardware?
+  Buy a board from SparkFun!
+  ZED-F9P RTK2: https://www.sparkfun.com/products/15136
+  NEO-M8P RTK: https://www.sparkfun.com/products/15005
+  SAM-M8Q: https://www.sparkfun.com/products/15106
+
+  Hardware Connections:
+  Plug a Qwiic cable into the GNSS and a RedBoard
+  If you don't have a platform with a Qwiic connection use the SparkFun Qwiic Breadboard Jumper (https://www.sparkfun.com/products/14425)
+  Open the serial monitor at 115200 baud to see the output
+*/
+
+#include <Wire.h> //Needed for I2C to GNSS
+
+#include <SparkFun_u-blox_GNSS_Arduino_Library.h> //Click here to get the library: http://librarymanager/All#SparkFun_u-blox_GNSS
+SFE_UBLOX_GNSS myGNSS;
+
+void setup()
+{
+
+  Serial.begin(115200);
+  Serial.println(F("SparkFun u-blox GNSS Example"));
+
+  Wire.begin();
+
+  //myGNSS.enableDebugging(); // Uncomment this line to enable debug messages on Serial
+
+  if (myGNSS.begin() == false)
+  {
+    Serial.println(F("u-blox GNSS not detected at default I2C address. Please check wiring. Freezing."));
+    while (1)
+      ;
+  }
+
+  //Disable or enable various NMEA sentences over the I2C interface
+  myGNSS.setI2COutput(COM_TYPE_NMEA | COM_TYPE_UBX); // Turn on both UBX and NMEA sentences on I2C. (Turn off RTCM and SPARTN)
+  myGNSS.disableNMEAMessage(UBX_NMEA_GLL, COM_PORT_I2C);
+  myGNSS.disableNMEAMessage(UBX_NMEA_GSA, COM_PORT_I2C);
+  myGNSS.disableNMEAMessage(UBX_NMEA_GSV, COM_PORT_I2C);
+  myGNSS.enableNMEAMessage(UBX_NMEA_RMC, COM_PORT_I2C);
+  myGNSS.enableNMEAMessage(UBX_NMEA_VTG, COM_PORT_I2C);
+  myGNSS.enableNMEAMessage(UBX_NMEA_GGA, COM_PORT_I2C);
+  myGNSS.enableNMEAMessage(UBX_NMEA_ZDA, COM_PORT_I2C);
+
+  // Set the Main Talker ID to "GP". The NMEA GGA messages will be GPGGA instead of GNGGA
+  myGNSS.setMainTalkerID(SFE_UBLOX_MAIN_TALKER_ID_GP);
+  //myGNSS.setMainTalkerID(SFE_UBLOX_MAIN_TALKER_ID_DEFAULT); // Uncomment this line to restore the default main talker ID
+
+  myGNSS.setHighPrecisionMode(true); // Enable High Precision Mode - include extra decimal places in the GGA messages
+
+  //myGNSS.saveConfiguration(VAL_CFG_SUBSEC_IOPORT | VAL_CFG_SUBSEC_MSGCONF); //Optional: Save only the ioPort and message settings to NVM
+
+  Serial.println(F("Messages configured"));
+
+  //myGNSS.setNMEAOutputPort(Serial); // Uncomment this line to echo all NMEA data to Serial for debugging
+}
+
+void loop()
+{
+  // getLatestNMEAGPGGA calls checkUblox for us. We don't need to do it here
+
+  NMEA_GGA_data_t dataGGA; // Storage for the GPGGA data
+  uint8_t result = myGNSS.getLatestNMEAGPGGA(&dataGGA); // Get the latest GPGGA data (if any)
+
+  if (result == 2)
+  {
+    // Data contains .length and .nmea
+    Serial.print(F("Latest GPGGA: Length: "));
+    Serial.print(dataGGA.length);
+    Serial.print(F("\tData: "));
+    Serial.print((const char *)dataGGA.nmea); // .nmea is printable (NULL-terminated)
+  }
+
+  result = myGNSS.getLatestNMEAGNGGA(&dataGGA); // Get the latest GNGGA data (if any)
+
+  if (result == 2)
+  {
+    // Data contains .length and .nmea
+    Serial.print(F("Latest GNGGA: Length: "));
+    Serial.print(dataGGA.length);
+    Serial.print(F("\tData: "));
+    Serial.print((const char *)dataGGA.nmea); // .nmea is printable (NULL-terminated)
+  }
+
+  // getLatestNMEAGPVTG calls checkUblox for us. We don't need to do it here
+
+  NMEA_VTG_data_t dataVTG; // Storage for the GPVTG data
+  result = myGNSS.getLatestNMEAGPVTG(&dataVTG); // Get the latest GPVTG data (if any)
+
+  if (result == 2)
+  {
+    // Data contains .length and .nmea
+    Serial.print(F("Latest GPVTG: Length: "));
+    Serial.print(dataVTG.length);
+    Serial.print(F("\tData: "));
+    Serial.print((const char *)dataVTG.nmea); // .nmea is printable (NULL-terminated)
+  }
+
+  result = myGNSS.getLatestNMEAGNVTG(&dataVTG); // Get the latest GNVTG data (if any)
+
+  if (result == 2)
+  {
+    // Data contains .length and .nmea
+    Serial.print(F("Latest GNVTG: Length: "));
+    Serial.print(dataVTG.length);
+    Serial.print(F("\tData: "));
+    Serial.print((const char *)dataVTG.nmea); // .nmea is printable (NULL-terminated)
+  }
+
+  // getLatestNMEAGPRMC calls checkUblox for us. We don't need to do it here
+
+  NMEA_RMC_data_t dataRMC; // Storage for the GPRMC data
+  result = myGNSS.getLatestNMEAGPRMC(&dataRMC); // Get the latest GPRMC data (if any)
+
+  if (result == 2)
+  {
+    // Data contains .length and .nmea
+    Serial.print(F("Latest GPRMC: Length: "));
+    Serial.print(dataRMC.length);
+    Serial.print(F("\tData: "));
+    Serial.print((const char *)dataRMC.nmea); // .nmea is printable (NULL-terminated)
+  }
+
+  result = myGNSS.getLatestNMEAGNRMC(&dataRMC); // Get the latest GNRMC data (if any)
+
+  if (result == 2)
+  {
+    // Data contains .length and .nmea
+    Serial.print(F("Latest GNRMC: Length: "));
+    Serial.print(dataRMC.length);
+    Serial.print(F("\tData: "));
+    Serial.print((const char *)dataRMC.nmea); // .nmea is printable (NULL-terminated)
+  }
+
+  // getLatestNMEAGPZDA calls checkUblox for us. We don't need to do it here
+
+  NMEA_ZDA_data_t dataZDA; // Storage for the GPZDA data
+  result = myGNSS.getLatestNMEAGPZDA(&dataZDA); // Get the latest GPZDA data (if any)
+
+  if (result == 2)
+  {
+    // Data contains .length and .nmea
+    Serial.print(F("Latest GPZDA: Length: "));
+    Serial.print(dataZDA.length);
+    Serial.print(F("\tData: "));
+    Serial.print((const char *)dataZDA.nmea); // .nmea is printable (NULL-terminated)
+  }
+
+  result = myGNSS.getLatestNMEAGNZDA(&dataZDA); // Get the latest GNZDA data (if any)
+
+  if (result == 2)
+  {
+    // Data contains .length and .nmea
+    Serial.print(F("Latest GNZDA: Length: "));
+    Serial.print(dataZDA.length);
+    Serial.print(F("\tData: "));
+    Serial.print((const char *)dataZDA.nmea); // .nmea is printable (NULL-terminated)
+  }
+
+  delay(250);
+}