switch to setup for Arduino Boards Manager

digistump-avr/libraries/Digispark_Examples/GPS/GPS.ino

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+#include "DigiKeyboard.h"
+
+char nmeaString[57];
+bool gpsReady = 0;
+bool gpsDateTimeReady = 0;
+
+void setup() {
+  
+  DigiKeyboard.delay(3000);//When this sketch is used with DigiKeyboard as it is here, it tends to need a bit of a delay at the start
+  Serial.begin(9600); //Connect to GPS
+  DigiKeyboard.delay(1000);//We need a delay before we init the GPS module
+  initGPS(); //Send init msgs to GPS
+  
+}
+
+
+void loop() {
+  
+  if(updateGPS()){ //this will return true if it was able to get a valid string from the GPS
+    DigiKeyboard.println(nmeaString); //the whole string from the GPS unit
+
+    
+    DigiKeyboard.println(getStatus()); //A means we are good to go, V means it is still getting a fix
+    if(gpsDateTimeReady){ //date and time are oftenr eady before the rest of the data, so if we are just looking for that we can use it much sooner
+     DigiKeyboard.println(getTime());
+     DigiKeyboard.println(getDate());
+    }
+    if(gpsReady){
+     DigiKeyboard.println(getLat());
+     DigiKeyboard.println(getLon());
+    }
+  }
+  DigiKeyboard.delay(1000);
+ 
+ 
+}
+
+void initGPS(){
+  
+  Serial.println(F("$PUBX,40,RMC,1,1,1,0*46")); //turn on RMC msgs
+  Serial.println(F("$PUBX,40,GLL,0,0,0,0*5C")); //turn off the rest
+  Serial.println(F("$PUBX,40,GGA,0,0,0,0*5A"));
+  Serial.println(F("$PUBX,40,GSA,0,0,0,0*4E"));
+  Serial.println(F("$PUBX,40,GSV,0,0,0,0*59"));
+  Serial.println(F("$PUBX,40,VTG,0,0,0,0*5E"));
+  
+}
+
+
+
+
+bool updateGPS() {
+  
+  
+  while(Serial.read()!='$');
+  while(Serial.read()!=',');
+  unsigned int i = 0;
+  while(i<56){nmeaString[i] = Serial.read();i++;}
+  nmeaString[56] = '\0';
+      if(getStatus() == 'A'){ //we're good to go
+        gpsReady = 1;
+        gpsDateTimeReady = 1;
+      }
+      else if (getStatus() == 'V'){ //string is valid but gps isn't ready - check if we have date and time at least
+        gpsReady = 0;
+        gpsDateTimeReady = dateTimeReady();
+      }
+      else
+        return false; //we got an invalid string
+        
+  return true;
+    
+}
+
+unsigned int charIndexOf(char* array, char searchChar){
+  unsigned int i = 0;
+  while(array[i] != '\0'){
+   if(array[i] == searchChar)
+     return i;
+   i++; 
+  }
+  return false;
+}
+
+unsigned int charLastIndexOf(char* array, char searchChar){
+  unsigned int i = 0;
+  unsigned int l = '\0';
+  while(array[i] != '\0'){
+   if(array[i] == searchChar)
+     l=i;
+   i++; 
+  }
+  if(l=='\0')
+    return false;
+  else
+    return l;
+}
+
+
+
+long getTime(){
+  char time[7];
+  memcpy(time,&nmeaString[0],6);
+  time[6] = '\0';
+  return atol(time);
+}
+
+
+int getHour(){
+  char time[3];
+  memcpy(time,&nmeaString[0],2);
+  time[2] = '\0';
+  return atoi(time);
+}
+
+int getMin(){
+  char time[3];
+  memcpy(time,&nmeaString[2],2);
+  time[2] = '\0';
+  return atoi(time);
+}
+
+int getSec(){
+  char time[3];
+  memcpy(time,&nmeaString[4],2);
+  time[2] = '\0';
+  return atoi(time);
+}
+
+char getStatus(){
+  return nmeaString[charIndexOf(nmeaString,',')+1]; //this has to work even if the other data isn't present
+}
+
+
+bool dateTimeReady(){
+  if(nmeaString[0] != ',' && nmeaString[18] != ','){
+    return true;
+  }
+  else
+    return false;
+}
+
+float getLat(){
+  char temp[11];
+  memcpy( temp, &nmeaString[12], 10 );
+  temp[10] = '\0';
+  return atof(temp);
+}
+
+int getLatDeg(){
+  char temp[3];
+  memcpy( temp, &nmeaString[12], 2 );
+  temp[2] = '\0';
+  return atoi(temp);
+}
+
+float getLatMin(){
+  char temp[9];
+  memcpy( temp, &nmeaString[14], 8 );
+  temp[8] = '\0';
+  return atof(temp);
+}
+
+float getLon(){
+  char temp[12];
+  memcpy( temp, &nmeaString[25], 11 );
+  temp[11] = '\0';
+  return atof(temp);
+}
+
+int getLonDeg(){
+  char temp[4];
+  memcpy( temp, &nmeaString[25], 3 );
+  temp[3] = '\0';
+  return atoi(temp);
+}
+
+float getLonMin(){
+  char temp[9];
+  memcpy( temp, &nmeaString[28], 8 );
+  temp[8] = '\0';
+  return atof(temp);
+}
+
+float getKnots(){
+  char temp[6];
+  memcpy( temp, &nmeaString[39], 5 );
+  temp[5] = '\0';
+  return atof(temp);
+}
+
+float getCourse(){
+  char temp[7];
+  memcpy( temp, &nmeaString[45], 6 );
+  temp[6] = '\0';
+  return atof(temp);
+}
+bool isCoursePresent(){
+  if(nmeaString[12] == ',')
+    return false;
+  else if(charLastIndexOf(nmeaString,',')>53)
+    return false;
+  else
+    return true;
+}
+
+long getDate(){
+  char date[7];
+  if(isCoursePresent()){
+    memcpy( date, &nmeaString[52], 4 );
+    date[4] = '\0';
+    return atol(date)*100+14;
+  }
+  else{
+    if(nmeaString[12] == ',')
+      memcpy( date, &nmeaString[18], 6 );
+    else
+      memcpy( date, &nmeaString[46], 6 );
+    date[6] = '\0';
+    return atol(date);
+  }
+}
+
+
+int getDay(){
+  char date[3];
+  if(isCoursePresent())
+    memcpy( date, &nmeaString[52], 2 );
+  else{
+    if(nmeaString[12] == ',')
+      memcpy( date, &nmeaString[18], 2 );
+    else
+      memcpy( date, &nmeaString[46], 2 );
+  }
+  date[2] = '\0';
+  return atoi(date);
+}
+int getMonth(){
+  char date[3];
+  if(isCoursePresent())
+    memcpy( date, &nmeaString[54], 2 );
+  else{
+    if(nmeaString[12] == ',')
+      memcpy( date, &nmeaString[20], 2 );
+    else
+      memcpy( date, &nmeaString[48], 2 );
+  }
+  date[2] = '\0';
+  return atoi(date);
+}
+int getYear(){
+  if(isCoursePresent())
+    return 14; //just assume the year hasn't changed - we could also save it when we have it, but that would take more ram
+  else{
+    char date[3];
+    if(nmeaString[12] == ',')
+      memcpy( date, &nmeaString[22], 2 );
+    else
+      memcpy( date, &nmeaString[50], 2 );
+    date[2] = '\0';
+    return atoi(date);
+  }
+  
+}
+
+int getFullYear(){
+  if(isCoursePresent())
+    return 2014; //just assume the year hasn't changed - we could also save it when we have it, but that would take more ram
+  else{
+    char date[3];
+    if(nmeaString[12] == ',')
+      memcpy( date, &nmeaString[22], 2 );
+    else
+      memcpy( date, &nmeaString[50], 2 );
+    date[2] = '\0';
+    return atoi(date)+2000;
+  }
+}
+
+
+char getNS(){
+  return nmeaString[23]; 
+}
+
+char getEW(){
+  return nmeaString[37]; 
+}
+
+