NMEA decoder and Airbot UBlox GPS working on Arduino Pro Mini 3.3V

gpsprinter.c

#include <nmea.h>
#include <SoftwareSerial.h>

SoftwareSerial mySerial(2, 3); // RX, TX - change for your connections
NMEA nmeaDecoder(ALL);

void setup()  
{
  
  // Open serial communications and wait for port to open:
  Serial.begin(57600);
  while (!Serial) {
    ; // wait for serial port to connect. Needed for Leonardo only
  }

  // set the data rate for the SoftwareSerial port
  mySerial.begin(9600); // UBlox data rate is low by default
}

void loop() // run over and over
{
  if (mySerial.available()) {
    if (nmeaDecoder.decode(mySerial.read())) {
      Serial.print("Lon: ");
      Serial.print(nmeaDecoder.gprmc_longitude());
      Serial.print(", Lat: ");
      Serial.print(nmeaDecoder.gprmc_latitude());
      Serial.print(", Speed: ");
      Serial.print(nmeaDecoder.gprmc_speed(KMPH));
      Serial.print(", Course: ");
      Serial.println(nmeaDecoder.gprmc_course());
    }
  }
}