I am using the TinyGPS library and trying to combine it with the LCD library to display various GPS data. However, I can not compile because it says 'gpsdump' declared void. I am sure I need to fix other things in the sketch but, I can get past the error.
Any help would be great!
// Ported to SdFat from the native Arduino SD library example by Bill Greiman
// . SdFat handles setting SS
// MicroSD sheild pins 8,11,13
//LCD screen 7,6,5,4,3,2
//Button one A0
//Button two A1
//Gps rx A2 D16
//gps tx A3 D17
//LED pin 13
/*
/* This sample code demonstrates the normal use of a TinyGPS object.
It requires the use of NewSoftSerial, and assumes that you have a
4800-baud serial GPS device hooked up on pins 2(rx) and 3(tx).
*/
int buttonStateone = 0; // variable for reading the pushbutton 1 status:
int buttonStatetwo = 0; // variable for reading the pushbutton 2 status:
unsigned long previousMillis = 0; // will store last time:
unsigned long currentMillis = 0; // stores current time:
unsigned long interval = 150; // interval at which to time communication events:
#include <LiquidCrystal.h>
LiquidCrystal lcd(7, 6, 5, 4, 3, 2); // initialize the library with the numbers of the interface pins:
#include <NewSoftSerial.h>
#include <TinyGPS.h>
TinyGPS gps;
NewSoftSerial nss(16,17); //Gps rx A2 D16 tx A3 D17
void gpsdump(TinyGPS &gps);
bool feedgps();
void printFloat(double f, int digits = 2);
lcd.setCursor(1,1);
lcd.print("GPS is starting"); // I will enter number for testing:
delay(2000);
lcd.clear();
void setup()
{
Serial.begin(115200);
nss.begin(9600);
lcd.begin(16, 2); // set up the LCD's number of columns and rows:
lcd.setCursor(0,0);
lcd.print("B1 to Read");// Print a message to the LCD.
delay(1000); // chance to push a button:
pinMode(14, INPUT);
pinMode(15, INPUT);
buttonStateone = digitalRead(14);
buttonStatetwo = digitalRead(15);
lcd.setCursor(0,1);
lcd.print("Ini. SD card");// Print a message to the LCD.
delay (1000);
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()
{
if (buttonStateone == HIGH) {
}
if (buttonStatetwo == HIGH) {
lcd.setCursor(0,0);
lcd.print("Nothing Yet Baby! ");// Print a message to the LCD.
delay (1000);
}
pinMode(13, OUTPUT);
digitalWrite (13, HIGH ); //led indicator to show action
bool newdata = false;
unsigned long start = millis();
// Every 1 seconds we print an update
while (millis() - start < 1000)
{
if (feedgps())
newdata = true;
}
if (newdata)
{
Serial.println("Acquired Data");
Serial.println("-------------");
gpsdump(gps);
Serial.println("-------------");
Serial.println();
}
}
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;
}
}
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.");
feedgps(); // If we don't feed the gps during this long routine, we may drop characters and get checksum errors
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.");
feedgps();
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.");
feedgps();
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));
Serial.print(":");
Serial.print(static_cast<int>(minute));
Serial.print(":");
Serial.print(static_cast<int>(second));
Serial.print(".");
Serial.print(static_cast<int>(hundredths));
Serial.print(" Fix age: ");
Serial.print(age);
Serial.println("ms.");
feedgps();
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();
feedgps();
digitalWrite (13, LOW ); //led indicator to show action
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);
}
bool feedgps()
{
while (nss.available())
{
if (gps.encode(nss.read()))
return true;
}
return false;
}
I am trimming and testing. I currently have MPH and time displayed on the LCD.