Mengakses GPS GY NEO 6M V2 ARDUINO DAN LCD I2C

Mengakses GPS GY NEO 6M V2 ARDUINO DAN LCD I2C

       Pada kesempatan kali ini saya akan membahas mengenai bagaimana cara mengakses sebuah device GPS GY NEO 6M V2 dengan menggunakan Arduino, jadi nanti nilai longitude dan latitude yang diterima oleh GPS akan langsung ditampilkan pada layar LCD i2c yang sudah disiapkan, pada contoh kali ini menggunakan Arduino Mega sebagai controllernya dan LCD 16x2 sebagai interface LCD. GPS ini sangat bagus digunakan meskipun harganya relatif murah dibanding dengan GPS lain seperti EM-411 namun GPS ini tetap powerfull. untuk skema dan program seperti berikut.  

a. Arduino Mega

b. GPS GY NEO 6MV2

c. LCD 16x2 + i2c

d. Program Arduino IDE untuk GPS kirim serial

//VCC pada GPS modul adalah 3,3 volt

/*********************
 *10 to GPS Module TX*
 *09 to GPS Module RX*
 *********************/

#include <SoftwareSerial.h>
#include <TinyGPS.h>

SoftwareSerial mySerial(10, 11);
TinyGPS gps;

void gpsdump(TinyGPS &gps);
void printFloat(double f, int digits = 2);

void setup() 
{
  // Oploen serial communications and wait for port to open:
  Serial.begin(9600);
  // set the data rate for the SoftwareSerial port
  mySerial.begin(9600);
  delay(1000);
  Serial.println("uBlox Neo 6M");
  Serial.print("Testing TinyGPS library v. "); Serial.println(TinyGPS::library_version());
  Serial.println("by Mikal Hart");
  Serial.println();
  Serial.print("Sizeof(gpsobject) = ");
  Serial.println(sizeof(TinyGPS));
  Serial.println();
}

void loop() // run over and over
{
  bool newdata = false;
  unsigned long start = millis();
  // Every 5 seconds we print an update
  while (millis() - start < 5000)
  {
    if (mySerial.available())
   
    {
      char c = mySerial.read();
      //Serial.print(c);  // uncomment to see raw GPS data
      if (gps.encode(c))
      {
        newdata = true;
        break;  // uncomment to print new data immediately!
      }
    }
  }
 
  if (newdata)
  {
    Serial.println("Acquired Data");
    Serial.println("-------------");
    gpsdump(gps);
    Serial.println("-------------");
    Serial.println();
  }
 
}

void gpsdump(TinyGPS &gps)
{
  long lat, lon;
  float flat, flon;
  unsigned long age, date, time, chars;
  int year;
  byte month, day, hour, minute, second, hundredths;
  unsigned short sentences, failed;

  gps.get_position(&lat, &lon, &age);
  Serial.print("Lat/Long(10^-5 deg): "); Serial.print(lat); Serial.print(", "); Serial.print(lon);
  Serial.print(" Fix age: "); Serial.print(age); Serial.println("ms.");
 
  // On Arduino, GPS characters may be lost during lengthy Serial.print()
  // On Teensy, Serial prints to USB, which has large output buffering and
  //   runs very fast, so it's not necessary to worry about missing 4800
  //   baud GPS characters.

  gps.f_get_position(&flat, &flon, &age);
  Serial.print("Lat/Long(float): "); printFloat(flat, 5); Serial.print(", "); printFloat(flon, 5);
    Serial.print(" Fix age: "); Serial.print(age); Serial.println("ms.");

  gps.get_datetime(&date, &time, &age);
  Serial.print("Date(ddmmyy): "); Serial.print(date); Serial.print(" Time(hhmmsscc): ");
    Serial.print(time);
  Serial.print(" Fix age: "); Serial.print(age); Serial.println("ms.");

  gps.crack_datetime(&year, &month, &day, &hour, &minute, &second, &hundredths, &age);
  Serial.print("Date: "); Serial.print(static_cast<int>(month)); Serial.print("/");
    Serial.print(static_cast<int>(day)); Serial.print("/"); Serial.print(year);
  Serial.print("  Time: "); Serial.print(static_cast<int>(hour+8));  Serial.print(":"); //Serial.print("UTC +08:00 Malaysia");
    Serial.print(static_cast<int>(minute)); Serial.print(":"); Serial.print(static_cast<int>(second));
    Serial.print("."); Serial.print(static_cast<int>(hundredths)); Serial.print(" UTC +08:00 Malaysia");
  Serial.print("  Fix age: ");  Serial.print(age); Serial.println("ms.");

  Serial.print("Alt(cm): "); Serial.print(gps.altitude()); Serial.print(" Course(10^-2 deg): ");
    Serial.print(gps.course()); Serial.print(" Speed(10^-2 knots): "); Serial.println(gps.speed());
  Serial.print("Alt(float): "); printFloat(gps.f_altitude()); Serial.print(" Course(float): ");
    printFloat(gps.f_course()); Serial.println();
  Serial.print("Speed(knots): "); printFloat(gps.f_speed_knots()); Serial.print(" (mph): ");
    printFloat(gps.f_speed_mph());
  Serial.print(" (mps): "); printFloat(gps.f_speed_mps()); Serial.print(" (kmph): ");
    printFloat(gps.f_speed_kmph()); Serial.println();

  gps.stats(&chars, &sentences, &failed);
  Serial.print("Stats: characters: "); Serial.print(chars); Serial.print(" sentences: ");
    Serial.print(sentences); Serial.print(" failed checksum: "); Serial.println(failed);
}

void printFloat(double number, int digits)
{
  // Handle negative numbers
  if (number < 0.0)
  {
     Serial.print('-');
     number = -number;
  }

  // Round correctly so that print(1.999, 2) prints as "2.00"
  double rounding = 0.5;
  for (uint8_t i=0; i<digits; ++i)
    rounding /= 10.0;
 
  number += rounding;

  // Extract the integer part of the number and print it
  unsigned long int_part = (unsigned long)number;
  double remainder = number - (double)int_part;
  Serial.print(int_part);

  // Print the decimal point, but only if there are digits beyond
  if (digits > 0)
    Serial.print(".");

  // Extract digits from the remainder one at a time
  while (digits-- > 0)
  {
    remainder *= 10.0;
    int toPrint = int(remainder);
    Serial.print(toPrint);
    remainder -= toPrint;
  }
}

e. Program Arduino IDE untuk GPS tampil LCD 16x2

//vcc pada GPS modul adalah 3,3 volt

/*********************
 *10 to GPS Module TX*
 *09 to GPS Module RX*
 *********************/

#include <Wire.h>  // i2C Conection Library
#include <LiquidCrystal_I2C.h>  //i2C LCD Library

#include <SoftwareSerial.h>
#include <TinyGPS.h>

SoftwareSerial mySerial(10, 11);
TinyGPS gps;

LiquidCrystal_I2C lcd(0x3F, 16, 2);

void gpsdump(TinyGPS &gps);
void printFloat(double f, int digits = 2);

void setup() 
{
   lcd.begin();
   lcd.clear();
   lcd.noCursor();
  
  // Oploen serial communications and wait for port to open:
  Serial.begin(9600);
  // set the data rate for the SoftwareSerial port
  mySerial.begin(9600);
  delay(1000);
  Serial.println("uBlox Neo 6M");
  Serial.print("Testing TinyGPS library v. "); Serial.println(TinyGPS::library_version());
  Serial.println("by Mikal Hart");
  Serial.println();
  Serial.print("Sizeof(gpsobject) = ");
  Serial.println(sizeof(TinyGPS));
  Serial.println();
}

void loop() // run over and over
{
  bool newdata = false;
  unsigned long start = millis();
  // Every 5 seconds we print an update
  while (millis() - start < 5000)
  {
    if (mySerial.available())
   
    {
      char c = mySerial.read();
      //Serial.print(c);  // uncomment to see raw GPS data
      if (gps.encode(c))
      {
        newdata = true;
        break;  // uncomment to print new data immediately!
      }
    }
  }
 
  if (newdata)
  {
    Serial.println("Acquired Data");
    Serial.println("-------------");
    gpsdump(gps);
    Serial.println("-------------");
    Serial.println();
  }
 
}

void gpsdump(TinyGPS &gps)
{
  long lat, lon;
  float flat, flon;
  unsigned long age, date, time, chars;
  int year;
  byte month, day, hour, minute, second, hundredths;
  unsigned short sentences, failed;

  gps.get_position(&lat, &lon, &age);
  Serial.print("Lat/Long(10^-5 deg): "); Serial.print(lat); Serial.print(", "); Serial.print(lon);
  Serial.print(" Fix age: "); Serial.print(age); Serial.println("ms.");
 
  gps.f_get_position(&flat, &flon, &age);
  Serial.print("Lat/Long(float): "); printFloat(flat, 5); Serial.print(", "); printFloat(flon, 5);
    Serial.print(" Fix age: "); Serial.print(age); Serial.println("ms.");

  lcd.setCursor(0,0);
  lcd.print("LAT:");
  lcd.print(flat, 5);
  
  lcd.setCursor(0,1);
  lcd.print("LONG:");
  lcd.print(flon, 5);
 
}

void printFloat(double number, int digits)
{
  // Handle negative numbers
  if (number < 0.0)
  {
     Serial.print('-');
     number = -number;
  }

  // Round correctly so that print(1.999, 2) prints as "2.00"
  double rounding = 0.5;
  for (uint8_t i=0; i<digits; ++i)
    rounding /= 10.0;
 
  number += rounding;

  // Extract the integer part of the number and print it
  unsigned long int_part = (unsigned long)number;
  double remainder = number - (double)int_part;
  Serial.print(int_part);

  // Print the decimal point, but only if there are digits beyond
  if (digits > 0)
    Serial.print(".");

  // Extract digits from the remainder one at a time
  while (digits-- > 0)
  {
    remainder *= 10.0;
    int toPrint = int(remainder);
    Serial.print(toPrint);
    remainder -= toPrint;
  }
}

f. VIDEO HASILNYA