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Add build() example to GPS_Hardware_Serial_Timing.ino

This commit is contained in:
Rick Sellens 2020-01-18 09:18:13 -05:00
parent f02d93b749
commit a41cbce062
1 changed files with 44 additions and 3 deletions
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47
examples/GPS_HardwareSerial_Timing/GPS_HardwareSerial_Timing.ino
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@ -5,6 +5,9 @@
// received. This approach lets you keep an up to date clock based on GPS time at
// any time in between GPS fixes.
//
// It also shows how to take advantage of the build() function to generate test sentences.
// The additional code is within #ifdef NMEA_EXTENSIONS and #endif tags.
//
// This code shows how to listen to the GPS module via polling. Best used with
// Feathers or Flora where you have hardware Serial and no interrupt
//
@ -27,6 +30,13 @@
// Connect to the GPS on the hardware port
Adafruit_GPS GPS(&GPSSerial);
#ifdef NMEA_EXTENSIONS
// Create another GPS object to hold the state of the boat, with no communications,
// so don't call Boat.begin() in setup.
// We will build some fake sentences from the Boat data to feed to GPS for testing.
Adafruit_GPS Boat(&GPSSerial);
#endif
// Set GPSECHO to 'false' to turn off echoing the GPS data to the Serial console
// Set to 'true' if you want to debug and listen to the raw GPS sentences
#define GPSECHO true
@ -119,9 +129,9 @@ void loop() // run over and over again
Serial.println(s, 3);
Serial.print("Fix: "); Serial.print((int)GPS.fix);
Serial.print(" quality: "); Serial.println((int)GPS.fixquality);
Serial.print("Times [s] since last fix: "); Serial.print(GPS.secondsSinceFix(),3);
Serial.print(", GPS time: "); Serial.print(GPS.secondsSinceTime(),3);
Serial.print(", GPS date: "); Serial.println(GPS.secondsSinceDate(),3);
Serial.print("Time [s] since last fix: "); Serial.println(GPS.secondsSinceFix(),3);
Serial.print(" since last GPS time: "); Serial.println(GPS.secondsSinceTime(),3);
Serial.print(" since last GPS date: "); Serial.println(GPS.secondsSinceDate(),3);
if (GPS.fix) {
Serial.print("Location: ");
Serial.print(GPS.latitude, 4); Serial.print(GPS.lat);
@ -132,5 +142,36 @@ void loop() // run over and over again
Serial.print("Altitude: "); Serial.println(GPS.altitude);
Serial.print("Satellites: "); Serial.println((int)GPS.satellites);
}
#ifdef NMEA_EXTENSIONS
char latestBoat[200] = "";
updateBoat(); //create some test data in Boat
Boat.build(latestBoat,"GN","RMC"); //make a sentence from Boat data
Serial.print("\nbuild() test output -->"); //
Serial.print(latestBoat); //
GPS.resetSentTime(); //make timing look like it came in on GPS
GPS.parse(latestBoat); //parse the test data and store in GPS
#endif
}
}
#ifdef NMEA_EXTENSIONS
void updateBoat(){ //fill up the boat values with some test data to use in build()
double t = millis() / 1000.;
double theta = t / 100.; //slow
double gamma = theta * 10; //faster
Boat.latitude = 4400 + sin(theta)*60;
Boat.lat = 'N';
Boat.longitude = 7600 + cos(theta)*60;
Boat.lon = 'W';
Boat.fixquality = 2;
Boat.speed = 3 + sin(gamma);
Boat.hour = abs(cos(theta)) * 24;
Boat.minute = 30 + sin(theta/2) * 30;
Boat.seconds = 30 + sin(gamma) * 30;
Boat.milliseconds = 500+ sin(gamma) * 500;
Boat.year = 1+abs(sin(theta)) * 25;
Boat.month = 1+abs(sin(gamma)) * 11;
Boat.day = 1+ abs(sin(gamma)) * 26;
Boat.satellites = abs(cos(gamma)) * 10;
}
#endif