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nseidlenseidle
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Merge pull request sparkfun#2 from tve/serial-support
Add support for serial protocol, plus factory reset command
2 parents 77130a9 + 445bed8 commit 08e78b6

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‎examples/Example11_UseUart/Example11_UseUart.ino‎

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/*
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Reading lat and long via UBX binary commands using UART @38400 baud - free from I2C
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By: Nathan Seidle, Adapted from Example3_GetPosition by Thorsten von Eicken
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SparkFun Electronics
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Date: January 28rd, 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 configure the library and U-Blox for serial port use as well as
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switching the module from the default 9600 baud to 38400.
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Note: Long/lat are large numbers because they are * 10^7. To convert lat/long
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to something google maps understands simply divide the numbers by 10,000,000. We
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do this so that we don't have to use floating point numbers.
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Leave NMEA parsing behind. Now you can simply ask the module for the datums you want!
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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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Connect the U-Blox serial port to Serial1
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Open the serial monitor at 115200 baud to see the output
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*/
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#include "SparkFun_Ublox_Arduino_Library.h" //http://librarymanager/All#SparkFun_Ublox_GPS
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SFE_UBLOX_GPS myGPS;
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long lastTime = 0; //Simple local timer. Limits amount if I2C traffic to Ublox module.
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void setup()
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{
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Serial.begin(115200);
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while (!Serial); //Wait for user to open terminal
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Serial.println("SparkFun Ublox Example");
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//Assume that the U-Blox GPS is running at 9600 baud (the default) or at 38400 baud.
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//Loop until we're in sync and then ensure it's at 38400 baud.
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do {
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Serial.println("GPS: trying 38400 baud");
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Serial1.begin(38400);
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if (myGPS.begin(Serial1)) break;
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delay(100);
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Serial.println("GPS: trying 9600 baud");
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Serial1.begin(9600);
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if (myGPS.begin(Serial1)) {
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Serial.println("GPS: connected at 9600 baud, switching to 38400");
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myGPS.setSerialRate(38400);
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delay(100);
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} else {
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//gps.factoryReset();
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delay(2000); //Wait a bit before trying again to limit the Serial output
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}
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} while(1);
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Serial.println("GPS serial connected");
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myGPS.setUART1Output(COM_TYPE_UBX); //Set the UART port to output UBX only
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myGPS.setI2COutput(COM_TYPE_UBX); //Set the I2C port to output UBX only (turn off NMEA noise)
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myGPS.saveConfiguration(); //Save the current settings to flash and BBR
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}
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void loop()
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{
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//Query module only every second. Doing it more often will just cause I2C traffic.
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//The module only responds when a new position is available
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if (millis() - lastTime > 1000)
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{
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lastTime = millis(); //Update the timer
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long latitude = myGPS.getLatitude();
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Serial.print(F("Lat: "));
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Serial.print(latitude);
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long longitude = myGPS.getLongitude();
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Serial.print(F(" Long: "));
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Serial.print(longitude);
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Serial.print(F(" (degrees * 10^-7)"));
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long altitude = myGPS.getAltitude();
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Serial.print(F(" Alt: "));
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Serial.print(altitude);
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Serial.print(F(" (mm)"));
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byte SIV = myGPS.getSIV();
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Serial.print(F(" SIV: "));
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Serial.print(SIV);
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Serial.println();
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}
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}

‎examples/Example12_Reset/src/Example12_Reset.ino‎

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/*
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Test baud rate changes on serial, factory reset, and hard reset.
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By: Thorsten von Eicken
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Date: January 29rd, 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 reset the U-Box module.
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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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Connect the U-Blox serial port to Serial1
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Open the serial monitor at 115200 baud to see the output
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*/
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#include <SparkFun_Ublox_Arduino_Library.h> //http://librarymanager/All#SparkFun_Ublox_GPS
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SFE_UBLOX_GPS myGPS;
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int state = 0; // steps through auto-baud, reset, etc states
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void setup()
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{
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Serial.begin(115200);
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while (!Serial); //Wait for user to open terminal
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Serial.println("SparkFun Ublox Example");
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}
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void loop()
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{
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Serial.print("===== STATE ");
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Serial.println(state);
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switch (state) {
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case 0: // auto-baud connection, then switch to 38400 and save config
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do {
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Serial.println("GPS: trying 38400 baud");
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Serial1.begin(38400);
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if (myGPS.begin(Serial1)) break;
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delay(100);
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Serial.println("GPS: trying 9600 baud");
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Serial1.begin(9600);
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if (myGPS.begin(Serial1)) {
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Serial.println("GPS: connected at 9600 baud, switching to 38400");
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myGPS.setSerialRate(38400);
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delay(100);
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} else {
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delay(2000); //Wait a bit before trying again to limit the Serial output flood
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}
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} while(1);
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myGPS.setUART1Output(COM_TYPE_UBX); //Set the UART port to output UBX only
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myGPS.saveConfiguration(); //Save the current settings to flash and BBR
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Serial.println("GPS serial connected, saved config");
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state++;
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break;
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case 1: // hardReset, expect to see GPS back at 38400 baud
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Serial.println("Issuing hardReset (cold start)");
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myGPS.hardReset();
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delay(1000);
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Serial1.begin(38400);
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if (myGPS.begin(Serial1)) {
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Serial.println("Success.");
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state++;
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} else {
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Serial.println("*** GPS did not respond at 38400 baud, starting over.");
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state = 0;
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}
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break;
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case 2: // factoryReset, expect to see GPS back at 9600 baud
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Serial.println("Issuing factoryReset");
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myGPS.factoryReset();
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delay(2000); // takes more than one second... a loop to resync would be best
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Serial1.begin(9600);
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if (myGPS.begin(Serial1)) {
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Serial.println("Success.");
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state++;
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} else {
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Serial.println("*** GPS did not come back at 9600 baud, starting over.");
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state = 0;
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}
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break;
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case 3: // print version info
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Serial.print("GPS protocol version: ");
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Serial.print(myGPS.getProtocolVersionHigh());
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Serial.print('.');
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Serial.print(myGPS.getProtocolVersionLow());
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state = 0;
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}
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delay(1000);
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}

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