GPS+ IMU problem

Hardware MKR Family MKR SHIELDS
1

good morning,
My original language is Italian, this is a machine translation.
I use a MKRWAN 1310 but I cannot use the MKR GPS and MKR IMO shields at the same time.
when I load the Arduino code it doesn't even execute a line of code, is it possible that the two shields are not compatible?
as libraries I use MKRIMU.h and Arduino_MKRGPS.h
I am attaching the code:


#include <LoRa.h>
#include <MKRIMU.h>
#include <Arduino_MKRGPS.h>

unsigned long previousMillis = 0;
unsigned long currentMillis ;
const long interval = 300;
float heading, roll, pitch;
float latitude;
float longitude;
float altitude;
float speed;
float satellites;
float longitudine;
byte localAddress = 0xBB;  //address of this device
byte destination = 0xFF;   //where we are sending data to

void setup() {
  // initialize serial communications and wait for port to open:
  Serial.begin(9600);
    if (!LoRa.begin(868E6)) {
    Serial.println("Starting LoRa failed!");  
  }

  if (!GPS.begin(GPS_MODE_SHIELD)) {
    
    Serial.println("Failed to initialize GPS!"); 
  }
  
  if (!IMU.begin()) {
    Serial.println("Failed to initialize IMU!");
  }
  Serial.println("qua3");
}

void loop() {
 currentMillis = millis();


  // check if there is new GPS data available
  if (GPS.available()) {

    // read GPS values
    latitude   = GPS.latitude();
    longitude  = GPS.longitude();
    altitude   = GPS.altitude();
    speed      = GPS.speed();
    satellites = GPS.satellites();
    longitudine=GPS.longitude();
  }
  //read IMU values
   if (IMU.eulerAnglesAvailable()) {
    IMU.readEulerAngles(heading, roll, pitch);
     }
    //send data
  if (currentMillis - previousMillis >= interval) {
      previousMillis = currentMillis; 
      LoRa_send();
      printValues();
    }
}

//function to send information over LoRa network
void LoRa_send() {
    LoRa.beginPacket();  //creates a LoRa packet
    LoRa.write(destination);  //destination address
    LoRa.print("LAT: ");
    LoRa.print(latitude,7);
    LoRa.print(" LONG: ");
    LoRa.print(longitudine,7);
    LoRa.print("pitch:");
    LoRa.print(pitch);
    LoRa.print(" roll: ");
    LoRa.print(roll);
    LoRa.endPacket(); //sends the LoRa packet
    

}

//function that prints all readings in the Serial Monitor
void printValues() {
  Serial.print("Location: ");
  Serial.print(latitude, 7);
  Serial.print(", ");
  Serial.println(longitude, 7);
  Serial.print("Altitude: ");
  Serial.print(altitude);
  Serial.println("m");
  Serial.print("Ground speed: ");
  Serial.print(speed);
  Serial.println(" km/h");
  Serial.print("Number of satellites: ");
  Serial.println(satellites);
    Serial.print(heading);
    Serial.print('\t');
    Serial.print(roll);
    Serial.print('\t');
    Serial.println(pitch);
}

can anyone solve?

2

How do you know that ?

A good idea is to have your code startup with a message so you can at least tell if its started running. For example, change setup to be something like;

void setup() {
  // initialize serial communications and wait for port to open:
  Serial.begin(9600);
  Serial.println("My Program has started");
1 Like
3

yes i put in the messages during the code.
currently it would appear that the code is being executed but GPS.available () always returns 0

4

The forum has an Italian section.

5

probably writing in the Italian section I would not get any answer as already happened .. they tell me to write in the section dedicated to MKR

6

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