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/*
Get a device's I2C address using advanced getVal method
By: Nathan Seidle
SparkFun Electronics
Date: January 9th, 2019
License: MIT. See license file for more information but you can
basically do whatever you want with this code.
u-blox changed how to configure their modules in 2019. As of version 23 of the UBX protocol the
UBX-CFG commands are deprecated; they still work, they just recommend using VALSET, VALGET, and VALDEL
commands instead. This example shows how to use this new command structure.
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 Qwiic or BlackBoard
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 GPS
#include "SparkFun_Ublox_Arduino_Library.h" //http://librarymanager/All#SparkFun_u-blox_GNSS
SFE_UBLOX_GPS myGPS;
long lastTime = 0; //Simple local timer. Limits amount if I2C traffic to Ublox module.
void setup()
{
Serial.begin(115200);
while (!Serial)
; //Wait for user to open terminal
Serial.println("u-blox getVal example");
Wire.begin();
Wire.setClock(400000); //Increase I2C clock speed to 400kHz
if (myGPS.begin() == false) //Connect to the Ublox module using Wire port
{
Serial.println(F("u-blox GPS not detected at default I2C address. Please check wiring. Freezing."));
while (1)
;
}
myGPS.enableDebugging(); //Enable debug messages over Serial (default)
//myGPS.enableDebugging(SerialUSB); //Enable debug messages over Serial USB
uint8_t currentI2Caddress = myGPS.getVal8(UBLOX_CFG_I2C_ADDRESS);
Serial.print("Current I2C address (should be 0x42): 0x");
Serial.println(currentI2Caddress >> 1, HEX); //Ublox module returns a shifted 8-bit address. Make it 7-bit unshifted.
while (1)
;
}
void loop()
{
//Query module only every second. Doing it more often will just cause I2C traffic.
//The module only responds when a new position is available
if (millis() - lastTime > 1000)
{
lastTime = millis(); //Update the timer
long latitude = myGPS.getLatitude();
Serial.print(F("Lat: "));
Serial.print(latitude);
long longitude = myGPS.getLongitude();
Serial.print(F(" Long: "));
Serial.print(longitude);
Serial.print(F(" (degrees * 10^-7)"));
long altitude = myGPS.getAltitude();
Serial.print(F(" Alt: "));
Serial.print(altitude);
Serial.print(F(" (mm)"));
byte SIV = myGPS.getSIV();
Serial.print(F(" SIV: "));
Serial.print(SIV);
Serial.println();
}
}