First commit, working build.

lib/Adafruit-GPS-Library/examples/leo_locus_dumpbasic/leo_locus_dumpbasic.ino

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+// 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
+
+//This code is intended for use with Arduino Leonardo and other ATmega32U4-based Arduinos
+
+#include <Adafruit_GPS.h>
+#include <SoftwareSerial.h>
+
+// Connect the GPS Power pin to 5V
+// Connect the GPS Ground pin to ground
+// If using software serial (sketch example default):
+//   Connect the GPS TX (transmit) pin to Digital 8
+//   Connect the GPS RX (receive) pin to Digital 7
+// If using hardware serial:
+//   Connect the GPS TX (transmit) pin to Arduino RX1 (Digital 0)
+//   Connect the GPS RX (receive) pin to matching TX1 (Digital 1)
+
+// If using software serial, keep these lines enabled
+// (you can change the pin numbers to match your wiring):
+//SoftwareSerial mySerial(8, 7);
+//Adafruit_GPS GPS(&mySerial);
+
+// If using hardware serial, comment
+// out the above two lines and enable these two lines instead:
+Adafruit_GPS GPS(&Serial1);
+#define mySerial  Serial1
+
+void setup()  
+{    
+  while (!Serial);  // Leonardo will wait till serial connects
+
+  // 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 using hardware serial (e.g. Arduino Mega), change this to Serial1, etc.
+  if (mySerial.available()) {
+    char c = mySerial.read();
+    if (c) {
+#ifdef UDR0
+      UDR0 = c;  
+#else
+      Serial.print(c);
+#endif
+    }
+  }
+}
+