Combining two codes to jump back and forth between them I have a code for both a magnetometer, and a GPS, both written to give off just one reading at a time. I'm trying to make a sketch that is able to go back and forth between these two codes so I get both sets of data.

Here is the GPS Code:

#include &lt;NMEAGPS.h&gt;
#include &lt;NeoSWSerial.h&gt;

NeoSWSerial gpsSerial(3, 2);
NMEAGPS     GPS;
gps_fix     fix;

void setup()
{
Serial.begin(115200);
Serial.println( F("Run once!") ); // F macro saves RAM!

gpsSerial.begin(9600);
gpsSerial.println( F("$PMTK314,0,1,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0*28") ); // RMC &amp; GGA only
gpsSerial.println( F("$PMTK220,1000*1F") ); // 1Hz update rate

waitForFix();
printFix();
}

void loop()
{
}

void waitForFix()
{
uint8_t fixes = 0;

do {
if (GPS.available( gpsSerial )) {
  fix = GPS.read();
  fixes++;
}
} while ((fixes &lt; 2) &amp;&amp; !fix.valid.location);

} // waitForFix

void printFix() 
{
Serial.print( F("Time: ") );
if (fix.valid.time) {
if (fix.dateTime.hours &lt; 10)
  Serial.print( '0' );
Serial.print(fix.dateTime.hours);
Serial.print(':');
if (fix.dateTime.hours &lt; 10)
  Serial.print( '0' );
Serial.print(fix.dateTime.minutes);
Serial.print(':');
if (fix.dateTime.hours &lt; 10)
  Serial.print( '0' );
Serial.print(fix.dateTime.seconds);
Serial.print('.');
if (fix.dateTime_cs &lt; 10)
  Serial.print( '0' );
Serial.print(fix.dateTime_cs);
}
Serial.println();

Serial.print( F("Date: ") );
if (fix.valid.date) {
Serial.print(fix.dateTime.day);
Serial.print('/');
Serial.print(fix.dateTime.month);
Serial.print('/');
Serial.print( fix.dateTime.full_year() );
}
Serial.println();

Serial.print( F("Fix status: ") );
if (fix.valid.status)
Serial.print( (int) fix.status );
Serial.println();

if (fix.valid.location) {
Serial.print( F("Location: ") );
Serial.print( fix.latitude(), 4 );
Serial.print( F(", ") );
Serial.println(fix.longitude(), 4);
}

if (fix.valid.speed) {
Serial.print("Speed (knots): ");
Serial.println( fix.speed() );
}

if (fix.valid.heading) {
Serial.print( F("Angle: ") );
Serial.println( fix.heading() );
}

if (fix.valid.altitude) {
Serial.print( F("Altitude: ") );
Serial.println( fix.altitude() );
}

if (fix.valid.satellites) {
Serial.print( F("Satellites: ") );
Serial.println( fix.satellites );
}
}


Here is the Magnetometer Code:

#include &lt;Wire.h&gt; //I2C Arduino Library

#define address 0x1E //0011110b, I2C 7bit address of HMC5883

void setup(){
//Initialize Serial and I2C communications
Serial.begin(9600);
Wire.begin();

//Put the HMC5883 IC into the correct operating mode
Wire.beginTransmission(address); //open communication with HMC5883
Wire.write(0x02); //select mode register
Wire.write(0x00); //continuous measurement mode
Wire.endTransmission();
}
void loop(){

int x,y,z; //triple axis data

//Tell the HMC5883L where to begin reading data
Wire.beginTransmission(address);
Wire.write(0x03); //select register 3, X MSB register
Wire.endTransmission();


//Read data from each axis, 2 registers per axis
Wire.requestFrom(address, 6);
if(6&lt;=Wire.available()){

x = Wire.read()&lt;&lt;8; //X msb
x |= Wire.read(); //X lsb
z = Wire.read()&lt;&lt;8; //Z msb
z |= Wire.read(); //Z lsb
y = Wire.read()&lt;&lt;8; //Y msb
y |= Wire.read(); //Y lsb
}

//Print out values of each axis
Serial.print("x: ");
Serial.print(x);
Serial.print("  y: ");
Serial.print(y);
Serial.print("  z: ");
Serial.println(z);

delay(250);

while(1);

}


I don't know if this is even feasible, considering my lack of coding knowledge, but thanks for looking into it
The solution in short.

Although the link is very stupid, it shows very well what you have to do.

Pretty much make a code that combines both of them together. Put both setup in the new setup and carry on like that. Note that you have declared the serial monitor at 2 different baud rates so you can only pick one. Don't repeat previously declared things in your new code and you should be good to go.



Simple example:

Code 1:

const int buttonPin = 2;

 void setup() {
  pinMode(buttonPin, INPUT);
  Serial.begin(9600);
}

void loop() {
  buttonVal = digitalRead(buttonPin);
  Serial.println(buttonVal);
}


Code 2:

const int potPin = A0;

 void setup() {
  Serial.begin(115200);
}

void loop() {
  potVal = analogRead(potPin);
  Serial.println(potVal);
}


Fusionned code:

const int potPin = A0;
const int buttonPin = 2;

void setup() {
  pinMode(buttonPin, INPUT);
  Serial.begin(9600); //go for the lowest baud rate for reliability
}

void loop() {
  buttonVal = digitalRead(buttonPin);
  Serial.print(buttonVal);

  Serial.print("  -  ")

  potVal = analogRead(potPin);
  Serial.println(potVal);
}