v2.9

lib/SparkFun u-blox Arduino Library/examples/Example6_EnableNMEASentences/Example6_EnableNMEASentences.ino

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+/*
+  Turn on/off various NMEA sentences.
+  By: Nathan Seidle
+  SparkFun Electronics
+  Date: January 3rd, 2019
+  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 UART1. We use the I2C interface on the Ublox module for configuration
+  but you won't see any output from this sketch. You'll need to hook up
+  a Serial Basic or other USB to Serial device to UART1 on your Ublox module
+  to see the output.
+
+  This example turns off all sentences except for the GPGGA and GPVTG sentences.
+
+  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 GPS 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
+  Hookup a Serial Basic (https://www.sparkfun.com/products/15096) to UART1 on the Ublox module. Open a terminal at 57600bps
+  and see GPGGA and GPVTG sentences.
+*/
+#include <Wire.h> //Needed for I2C to GPS
+
+#include "SparkFun_Ublox_Arduino_Library.h" //http://librarymanager/All#SparkFun_u-blox_GNSS
+SFE_UBLOX_GPS myGPS;
+
+unsigned long lastGPSSend = 0;
+
+void setup()
+{
+  Serial.begin(115200); // Serial debug output over USB visible from Arduino IDE
+  Serial.println("Example showing how to enable/disable certain NMEA sentences");
+
+  Wire.begin();
+
+  if (myGPS.begin() == false)
+  {
+    Serial.println(F("Ublox GPS not detected at default I2C address. Please check wiring. Freezing."));
+    while (1)
+      ;
+  }
+
+  //Disable or enable various NMEA sentences over the UART1 interface
+  myGPS.disableNMEAMessage(UBX_NMEA_GLL, COM_PORT_UART1); //Several of these are on by default on virgin ublox board so let's disable them
+  myGPS.disableNMEAMessage(UBX_NMEA_GSA, COM_PORT_UART1);
+  myGPS.disableNMEAMessage(UBX_NMEA_GSV, COM_PORT_UART1);
+  myGPS.disableNMEAMessage(UBX_NMEA_RMC, COM_PORT_UART1);
+  myGPS.enableNMEAMessage(UBX_NMEA_GGA, COM_PORT_UART1); //Only leaving GGA/VTG enabled at current navigation rate
+  myGPS.enableNMEAMessage(UBX_NMEA_VTG, COM_PORT_UART1);
+
+  //Here's the advanced configure method
+  //Some of the other examples in this library enable the PVT message so let's disable it
+  myGPS.configureMessage(UBX_CLASS_NAV, UBX_NAV_PVT, COM_PORT_UART1, 0); //Message Class, ID, and port we want to configure, sendRate of 0 (disable).
+
+  myGPS.setUART1Output(COM_TYPE_NMEA); //Turn off UBX and RTCM sentences on the UART1 interface
+
+  myGPS.setSerialRate(57600); //Set UART1 to 57600bps.
+
+  myGPS.saveConfiguration(); //Save these settings to NVM
+
+  Serial.println(F("Messages configured. NMEA now being output over the UART1 port on the Ublox module at 57600bps."));
+}
+
+void loop()
+{
+  if (millis() - lastGPSSend > 200)
+  {
+    myGPS.checkUblox(); //See if new data is available, but we don't want to get NMEA here. Go check UART1.
+    lastGPSSend = millis();
+  }
+}