Arduino cloud inaccuracy

GPS/GNSS
1

with library v2 if you use Arduino cloud, all coordinates are inaccurate.
To replicate problem with mkr nb 1500:

file.ino

#include <MKRNB.h>
#include <Wire.h> //Needed for I2C to GNSS
#include <SparkFun_u-blox_GNSS_Arduino_Library.h> //http://librarymanager/All#SparkFun_u-blox_GNSS
SFE_UBLOX_GNSS myGNSS;

#include "GPS.h"

void setup() {
  // initialize serial communications and wait for port to open:
  Serial.begin(115200);
  while (!Serial){
    ;
  }

  Wire.begin();
  if (myGNSS.begin() == false) //Connect to the u-blox module using Wire port
  {
    Serial.println(F("u-blox GNSS not detected at default I2C address. Please check wiring. Freezing."));
    while (1);
  }
  myGNSS.setI2COutput(COM_TYPE_UBX); //Set the I2C port to output UBX only (turn off NMEA noise)
  myGNSS.saveConfigSelective(VAL_CFG_SUBSEC_IOPORT); //Save (only) the communications port settings to flash and BBR

  initProperties();
  //ArduinoCloud.begin(ArduinoIoTPreferredConnection, false); //uncomment this, everything breaks
  setDebugMessageLevel(DBG_VERBOSE);
  ArduinoCloud.printDebugInfo();
}

void loop() {
  // read GPS values
  long latitude = myGNSS.getLatitude();
  Serial.print(latitude);
  Serial.print(",");
  long longitude = myGNSS.getLongitude();
  Serial.print(longitude);
  Serial.print(",");
  long altitude = myGNSS.getAltitude();
  Serial.println(altitude);

  delay(1000);
}

GPS.h

// Code generated by Arduino IoT Cloud, DO NOT EDIT.

#include <ArduinoIoTCloud.h>
#include <Arduino_ConnectionHandler.h>

const char GPRS_APN[]      = "SECRET_OPTIONAL_APN";
const char PINNUMBER[]     = "SECRET_OPTIONAL_PIN";
const char GPRS_LOGIN[]    = "SECRET_OPTIONAL_USERNAME";
const char GPRS_PASSWORD[] = "SECRET_OPTIONAL_PASSWORD";

void initProperties(){
}

NBConnectionHandler ArduinoIoTPreferredConnection(PINNUMBER, GPRS_APN, GPRS_LOGIN, GPRS_PASSWORD);

this works, but moment you uncomment line 25,
//ArduinoCloud.begin(ArduinoIoTPreferredConnection, false);
The coordinates outputted by the library are completely wrong.

What can be done?

2

Switching over to UART works with cloud. There is something wrong with I2C connection. Followed Example12 and now its working with cloud.

Is this a bug?

3

Not sure - what device are you using? Was the Arudino cloud side set to accept @ 115200 baud?

4

Hard to say, apparently some issue with the “Magic Happens” portion of this, which you’ll likely need to debug, understand and communicate in more detail.

Things like where the data is comming from, the interface, the baud rate, the format, etc. Assuming its in the plumbing, and expectations therein.

The coordinates outputted by the library are completely wrong.

Ok, can your present this as a looks like this, expect it to look like that, or in metric units, so something we can imagine more clearly?

5

Arduino cloud is crap, i just ditched it. Way too many problems with it. Nothing is wrong with this sparkfun device.