added logging dump sketch

Adafruit_GPS.h

@@ -31,6 +31,8 @@ All text above must be included in any redistribution
 #define PMTK_SET_NMEA_OUTPUT_RMCGGA "$PMTK314,0,1,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0*28"
 // turn on ALL THE DATA
 #define PMTK_SET_NMEA_OUTPUT_ALLDATA "$PMTK314,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0*28"
+// turn off output
+#define PMTK_SET_NMEA_OUTPUT_OFF "$PMTK314,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0*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

examples/locus_dumpbasic/locus_dumpbasic.ino

@@ -0,0 +1,60 @@
+// Test code for Adafruit GPS modules using MTK3329/MTK3339 driver
+//
+// This code turns on the LOCUS built-in datalogger. The datalogger
+// turns off when power is lost, so you MUST turn it on every time
+// you want to use it!
+//
+// 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 <Adafruit_GPS.h>
+
+// these are for Arduino 1.0
+#include <SoftwareSerial.h>
+SoftwareSerial mySerial(3, 2);
+
+// if using Arduino v23 or earlier, uncomment these
+// two lines and comment out the above. You will
+// need to install NewSoftSerial
+//  #include <NewSoftSerial.h>
+//  NewSoftSerial mySerial(3, 2);
+
+// Connect the GPS Power pin to 5V
+// Connect the GPS Ground pin to ground
+// Connect the GPS TX (transmit) pin to Digital 3
+// Connect the GPS RX (receive) pin to Digital 2
+Adafruit_GPS GPS(&mySerial);
+
+void setup()  
+{    
+  // connect at 115200 so we can read the GPS fast enuf and
+  // also spit it out
+  Serial.begin(115200);
+  Serial.println("Adafruit GPS logging start test!");
+
+  // 9600 NMEA is the default baud rate for MTK - some use 4800
+  GPS.begin(9600);
+  
+  GPS.sendCommand(PMTK_SET_NMEA_OUTPUT_OFF);
+  
+  while (mySerial.available())
+     mySerial.read();
+
+  delay(1000);
+  GPS.sendCommand("$PMTK622,1*29");
+  Serial.println("----------------------------------------------------");
+}
+
+
+void loop()                     // run over and over again
+{  
+  if (mySerial.available()) {
+    char c = mySerial.read();
+      if (c) UDR0 = c;  
+  }
+}
+
+

examples/locus_start/locus_start.pde

@@ -56,8 +56,8 @@ void setup()
   // every 1 millisecond, and read data from the GPS for you. that makes the
   // loop code a heck of a lot easier!
   useInterrupt(true);
-
+  delay(500);
-  Serial.print("STARTING LOGGING....");
+  Serial.print("\nSTARTING LOGGING....");
   if (GPS.LOCUS_StartLogger())
     Serial.println(" STARTED!");
   else
@@ -98,4 +98,3 @@ void useInterrupt(boolean v) {
 }
 
 
-