This sketch prints out
Date: Latitude: Longitude:
Speed Over Ground mph: and kmh:
Course Over Ground (degrees): Fix: Satellites in use:
Total Satellites in use: and Satellites in view:
I adapted the code from the GPStest_RMC sketch
NewSoftSerial.h is at NewSoftSerial | Arduiniana
enjoy 
// This sketch needs $GPRMC, $GPGSA and $GPGSV activated.
#include <NewSoftSerial.h>
NewSoftSerial mySerial = NewSoftSerial(2, 3);
#define powerpin 4
#define BUFFSIZ 90
char buffer[BUFFSIZ];
char *parseptr;
char buffidx;
uint8_t hour, minute, second, year, month, date, i, anz=0;
uint16_t latitude, longitude, groundspeed, trackangle, track, mph, gs, tmp;
char latdir, longdir;
char status;
int k=0;
void setup()
{
if (powerpin) pinMode(powerpin, OUTPUT);
pinMode(13, OUTPUT);
Serial.begin(115200);
mySerial.begin(4800);
digitalWrite(powerpin, LOW);
delay(500);
}
void loop()
{
readline();
//Serial.println(" "); Serial.println(buffer); // activate this line to see your gps raw data !!!
if (strncmp(buffer, "$GPRMC",6) == 0) // check $GPRMC
{
parseptr = buffer+7; // hhmmss time
tmp = parsedecimal(parseptr);
hour = tmp / 10000;
minute = (tmp / 100) % 100;
second = tmp % 100;
parseptr = strchr(parseptr, ',') + 1;
status = parseptr[0];
parseptr += 2;
latitude = parsedecimal(parseptr); // latitude
if (latitude != 0)
{
latitude *= 10000;
parseptr = strchr(parseptr, '.')+1;
latitude += parsedecimal(parseptr);
}
parseptr = strchr(parseptr, ',') + 1;
if (parseptr[0] != ',') // latitude N/S
{
latdir = parseptr[0];
}
parseptr = strchr(parseptr, ',')+1; // longitude
longitude = parsedecimal(parseptr);
if (longitude != 0)
{
longitude *= 10000;
parseptr = strchr(parseptr, '.')+1;
longitude += parsedecimal(parseptr);
}
parseptr = strchr(parseptr, ',')+1;
if (parseptr[0] != ',') // read longitude E/W data
{
longdir = parseptr[0];
}
parseptr = strchr(parseptr, ',')+1; // groundspeed conversion
tmp = parsedecimal(parseptr);
parseptr = strchr(parseptr, '.')+1;
groundspeed = parsedecimal(parseptr);
if(tmp != 0)
{
tmp *= 100;
groundspeed += tmp;
mph=groundspeed * 1.151;
groundspeed *= 1.852;
}
else
{
mph=groundspeed * 1.151;
groundspeed *= 1.852;
}
parseptr = strchr(parseptr, ',')+1; // track angle
trackangle = parsedecimal(parseptr);
parseptr = strchr(parseptr, '.')+1;
track = parsedecimal(parseptr);
parseptr = strchr(parseptr, ',')+1; // date + time
tmp = parsedecimal(parseptr);
date = tmp / 10000;
month = (tmp / 100) % 100;
year = tmp % 100;
Serial.print("Date: ");
Serial.print(month, DEC);
Serial.print('/');
Serial.print(date, DEC);
Serial.print('/');
Serial.print(year, DEC);
Serial.print(" Time: ");
Serial.print(hour, DEC);
Serial.print(':');
Serial.print(minute, DEC);
Serial.print(':');
Serial.println(second, DEC);
Serial.print("Latitude: ");
Serial.print((char) latdir);
Serial.print(' ');
Serial.print(latitude/1000000, DEC);
Serial.print(' ');
Serial.print((latitude/10000)%100, DEC);
Serial.print('\'');
Serial.print(' ');
Serial.print((latitude/100)%100, DEC);
Serial.print('.');
Serial.print((latitude%100), DEC);
Serial.println('"');
Serial.print("Longitude: ");
Serial.print((char) longdir);
Serial.print(' ');
Serial.print(longitude/1000000, DEC);
Serial.print(' ');
Serial.print((longitude/10000)%100, DEC);
Serial.print('\'');
Serial.print(' ');
Serial.print((longitude/100)%100, DEC);
Serial.print('.');
Serial.print((longitude%100), DEC);
Serial.println('"');
Serial.print("Speed Over Ground mph: ");
gs=mph;
tempo(gs);
Serial.print(" kmh: ");
gs=groundspeed;
tempo(gs);
Serial.println(" ");
Serial.print("Course Over Ground (degrees): ");
Serial.print(trackangle);Serial.print(".");
Serial.println(track);
}
if (strncmp(buffer, "$GPGSA",6) == 0) // check $GPGSA
{
parseptr = buffer+8;
parseptr = strchr(parseptr, ',')+1;
if (parseptr[0] != ',') // FixType
{
latdir = parseptr[0];
}
if(latdir=='1') Serial.println("Fix: Not Available");
if(latdir=='2') Serial.println("FixType: 2D ");
if(latdir=='3') Serial.println("FixType: 3D ");
Serial.print("Satellites in use: ");
while (i<=8)
{
parseptr = strchr(parseptr, ',')+1; // date
tmp = parsedecimal(parseptr);
if (tmp != 0) // latitude N/S
{
Serial.print(" -- "); Serial.print(tmp);
anz=anz+1;
}
i++;
}
Serial.println(" "); Serial.print("Total Satellites in use: ");
Serial.println(anz, DEC);
i=0; anz=0;
}
if (strncmp(buffer, "$GPGSV",6) == 0) // check $GPGSV
{
parseptr = buffer+7;
tmp = parsedecimal(parseptr); // Number of Messages
parseptr = strchr(parseptr, ',')+1;
anz = parsedecimal(parseptr); // Message Number
parseptr = strchr(parseptr, ',')+1;
hour = parsedecimal(parseptr); // Satellites in View
if(anz==1)
{
Serial.print("Satellites in view: "); Serial.println(hour, DEC);
}
switch (tmp)
{
case 1:
year=hour;
break;
case 2:
if(anz==1) year=4;
if(anz==2) year=hour-4;
break;
case 3:
if(anz<3) year=4;
if(anz==3) year=hour-8;
}
year--;
i=0;
while (i < year)
{
parseptr = strchr(parseptr, ',')+1;
minute = parsedecimal(parseptr);
if ((minute >= 1) && (minute <= 32))
{
Serial.print(" -- "); Serial.print(minute, DEC);
parseptr = strchr(parseptr, ',')+1;
parseptr = strchr(parseptr, ',')+1;
parseptr = strchr(parseptr, ',')+1;
i++;
}
}
parseptr = strchr(parseptr, ',')+1;
minute = parsedecimal(parseptr);
if ((minute >= 1) && (minute <= 32))
Serial.print(" -- "); Serial.print(minute, DEC);
if(tmp==anz) Serial.println(" ");
anz=0;
}
}
uint32_t parsedecimal(char *str)
{
uint32_t d = 0;
while (str[0] != 0)
{
if ((str[0] > '9') || (str[0] < '0'))
return d;
d *= 10;
d += str[0] - '0';
str++;
}
return d;
}
void readline(void)
{
char c;
buffidx = 0;
while (1)
{
c=mySerial.read();
if (c == -1) continue;
if (c == '\n') continue;
if ((buffidx == BUFFSIZ-1) || (c == '\r'))
{
buffer[buffidx] = 0;
return;
}
buffer[buffidx++]= c;
}
}
void tempo(uint16_t gs)
{
if(gs <=99) // speed output conversion
{
Serial.print("0.");
Serial.print(gs);
}
else
{
Serial.print(gs/100, DEC); Serial.print(".");
tmp = gs % 100;
if(tmp <=9) Serial.print("0");
Serial.print(tmp);
}
}
// enjoy - arduino forum user: head