79 lines
3.1 KiB
C++
79 lines
3.1 KiB
C++
/*
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Turn on/off various NMEA sentences.
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By: Nathan Seidle
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SparkFun Electronics
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Date: January 3rd, 2019
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License: MIT. See license file for more information but you can
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basically do whatever you want with this code.
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This example shows how to turn on/off the NMEA sentences being output
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over UART1. We use the I2C interface on the Ublox module for configuration
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but you won't see any output from this sketch. You'll need to hook up
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a Serial Basic or other USB to Serial device to UART1 on your Ublox module
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to see the output.
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This example turns off all sentences except for the GPGGA and GPVTG sentences.
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Feel like supporting open source hardware?
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Buy a board from SparkFun!
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ZED-F9P RTK2: https://www.sparkfun.com/products/15136
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NEO-M8P RTK: https://www.sparkfun.com/products/15005
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SAM-M8Q: https://www.sparkfun.com/products/15106
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Hardware Connections:
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Plug a Qwiic cable into the GPS and a RedBoard
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If you don't have a platform with a Qwiic connection use the SparkFun Qwiic Breadboard Jumper (https://www.sparkfun.com/products/14425)
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Open the serial monitor at 115200 baud to see the output
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Hookup a Serial Basic (https://www.sparkfun.com/products/15096) to UART1 on the Ublox module. Open a terminal at 57600bps
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and see GPGGA and GPVTG sentences.
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*/
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#include <Wire.h> //Needed for I2C to GPS
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#include "SparkFun_Ublox_Arduino_Library.h" //http://librarymanager/All#SparkFun_u-blox_GNSS
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SFE_UBLOX_GPS myGPS;
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unsigned long lastGPSSend = 0;
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void setup()
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{
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Serial.begin(115200); // Serial debug output over USB visible from Arduino IDE
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Serial.println("Example showing how to enable/disable certain NMEA sentences");
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Wire.begin();
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if (myGPS.begin() == false)
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{
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Serial.println(F("Ublox GPS not detected at default I2C address. Please check wiring. Freezing."));
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while (1)
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;
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}
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//Disable or enable various NMEA sentences over the UART1 interface
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myGPS.disableNMEAMessage(UBX_NMEA_GLL, COM_PORT_UART1); //Several of these are on by default on virgin ublox board so let's disable them
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myGPS.disableNMEAMessage(UBX_NMEA_GSA, COM_PORT_UART1);
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myGPS.disableNMEAMessage(UBX_NMEA_GSV, COM_PORT_UART1);
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myGPS.disableNMEAMessage(UBX_NMEA_RMC, COM_PORT_UART1);
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myGPS.enableNMEAMessage(UBX_NMEA_GGA, COM_PORT_UART1); //Only leaving GGA/VTG enabled at current navigation rate
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myGPS.enableNMEAMessage(UBX_NMEA_VTG, COM_PORT_UART1);
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//Here's the advanced configure method
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//Some of the other examples in this library enable the PVT message so let's disable it
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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).
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myGPS.setUART1Output(COM_TYPE_NMEA); //Turn off UBX and RTCM sentences on the UART1 interface
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myGPS.setSerialRate(57600); //Set UART1 to 57600bps.
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myGPS.saveConfiguration(); //Save these settings to NVM
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Serial.println(F("Messages configured. NMEA now being output over the UART1 port on the Ublox module at 57600bps."));
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}
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void loop()
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{
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if (millis() - lastGPSSend > 200)
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{
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myGPS.checkUblox(); //See if new data is available, but we don't want to get NMEA here. Go check UART1.
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lastGPSSend = millis();
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}
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} |