// Test code for Adafruit GPS modules using MTK3329/MTK3339 driver
//
// This code shows how to listen to the GPS module in an interrupt
// which allows the program to have more 'freedom' - just parse
// when a new NMEA sentence is available! Then access data when
// desired.
//
// Tested and works great with the Adafruit Ultimate GPS module
// using MTK33x9 chipset
// ------> http://www.adafruit.com/products/746
// Pick one up today at the Adafruit electronics shop
// and help support open source hardware & software! -ada
#include
#include
#include
#include
#include
#include
#include
#include
// ARDUINO NANO PINS FOR DISPLAY
#define OLED_DC 9
#define OLED_CS 12
#define OLED_CLK 13
#define OLED_MOSI 11
#define OLED_RESET 10
#define LOGO16_GLCD_HEIGHT 16
#define LOGO16_GLCD_WIDTH 16
#if (SSD1306_LCDHEIGHT != 64)
#error("Height incorrect, please fix Adafruit_SSD1306.h!");
#endif
// (you can change the pin numbers to match your wiring):
SoftwareSerial mySerial(8, 7);
Adafruit_GPS GPS(&mySerial);
//FAILS WHEN I UNCOMMENT OUT THIS LINE BELOW
Adafruit_SSD1306 display(OLED_MOSI, OLED_CLK, OLED_DC, OLED_RESET, OLED_CS);
//FAILS ON THE LINE ABOVE
void setup()
{
// connect at 115200 so we can read the GPS fast enough and echo without dropping chars
// also spit it out
Serial.begin(115200);
Serial.println("Nano GPS Display setup STARTED");
// 9600 NMEA is the default baud rate for Adafruit MTK GPS's- some use 4800
GPS.begin(9600);
GPS.sendCommand(PMTK_SET_NMEA_OUTPUT_RMCGGA);
GPS.sendCommand(PMTK_SET_NMEA_UPDATE_1HZ); // 1 Hz update rate
GPS.sendCommand(PGCMD_ANTENNA);
TIMSK0 &= ~_BV(OCIE0A);//no idea what this does, i hate badly named variables
delay(1000);
// Ask for firmware version
mySerial.println(PMTK_Q_RELEASE);
}
uint32_t timer = millis();
void loop() // run over and over again
{
char c = GPS.read();
// if a sentence is received, we can check the checksum, parse it...
if (GPS.newNMEAreceived()) {
if (!GPS.parse(GPS.lastNMEA())) // this also sets the newNMEAreceived() flag to false
return; // we can fail to parse a sentence in which case we should just wait for another
}
// if millis() or timer wraps around, we'll just reset it
if (timer > millis()) timer = millis();
// approximately every 2 seconds or so, print out the current stats
if (millis() - timer > 1000) {
timer = millis(); // reset the timer
if (GPS.fix) {
Serial.print("\nLocation: ");
Serial.print(GPS.latitude, 4); Serial.print(GPS.lat);
Serial.print(", ");
Serial.print(GPS.longitude, 4); Serial.println(GPS.lon);
Serial.print("Satellites: "); Serial.println((int)GPS.satellites);
//delay(1000);
}
Serial.print("Time: ");
Serial.print(GPS.hour, DEC); Serial.print(':');
Serial.print(GPS.minute, DEC); Serial.print(':');
Serial.print(GPS.seconds, DEC); Serial.print('.');
Serial.println(GPS.milliseconds);
}
}
ContractorWolf.com 