Create GPStest.ino

Author: TheKitty

Adafruit_MTK3329_GPS/GPStest/GPStest.ino

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+/ Test code for Adafruit GPS modules using MTK driver
+// such as www.adafruit.com/products/660 (discontinued)
+// For new use see www.adafruit.com/products/746 (needs different code)
+// help support open source hardware & software! -adafruit
+
+#include <SoftSerial.h>
+SoftSerial mySerial(2, 3);
+
+// Connect the GPS Power pin to 3.3V
+// Connect the GPS Ground pin to ground
+// Connect the GPS VBAT pin to 3.3V if no battery is used
+// Connect the GPS TX (transmit) pin to Digital 2
+// Connect the GPS RX (receive) pin to Digital 3
+// For 3.3V only modules such as the UP501, connect a 10K
+// resistor between digital 3 and GPS RX and a 10K resistor 
+// from GPS RX to ground.
+
+// different commands to set the update rate from once a second (1 Hz) to 10 times a second (10Hz)
+#define PMTK_SET_NMEA_UPDATE_1HZ  "$PMTK220,1000*1F"
+#define PMTK_SET_NMEA_UPDATE_5HZ  "$PMTK220,200*2C"
+#define PMTK_SET_NMEA_UPDATE_10HZ "$PMTK220,100*2F"
+
+// turn on only the second sentence (GPRMC)
+#define PMTK_SET_NMEA_OUTPUT_RMCONLY "$PMTK314,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0*29"
+// turn on ALL THE DATA
+#define PMTK_SET_NMEA_OUTPUT_ALLDATA "$PMTK314,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0*28"
+
+// to generate your own sentences, check out the MTK command datasheet and use a checksum calculator
+// such as the awesome http://www.hhhh.org/wiml/proj/nmeaxor.html
+
+void setup()  
+{
+  Serial.begin(57600);
+  Serial.println("Adafruit MTK3329 NMEA test!");
+
+  // 9600 NMEA is the default baud rate
+  mySerial.begin(9600);
+  
+  // uncomment this line to turn on only the "minimum recommended" data for high update rates!
+  //mySerial.println(PMTK_SET_NMEA_OUTPUT_RMCONLY);
+
+  // uncomment this line to turn on all the available data - for 9600 baud you'll want 1 Hz rate
+  mySerial.println(PMTK_SET_NMEA_OUTPUT_ALLDATA);
+  
+  // Set the update rate
+  // 1 Hz update rate
+  mySerial.println(PMTK_SET_NMEA_UPDATE_1HZ);
+  // 5 Hz update rate- for 9600 baud you'll have to set the output to RMC only (see above)
+  //mySerial.println(PMTK_SET_NMEA_UPDATE_5HZ);
+  // 10 Hz update rate - for 9600 baud you'll have to set the output to RMC only (see above)
+  //mySerial.println(PMTK_SET_NMEA_UPDATE_10HZ);
+
+}
+
+void loop()                     // run over and over again
+{
+
+  if (mySerial.available()) {
+      Serial.print((char)mySerial.read());
+  }
+  if (Serial.available()) {
+      mySerial.print((char)Serial.read());
+  }
+}