Re-group examples

examples/atmelavr-and-arduino/engduino-magnetometer/src/Magnetometer.ino

@@ -0,0 +1,44 @@
+#include <EngduinoMagnetometer.h>
+#include <Wire.h>
+
+// Magnetometer demo
+//
+// Print the field strength values
+//
+
+void setup()
+{ 
+  EngduinoMagnetometer.begin();
+}
+
+void loop()
+{ 
+  float magneticField[3];
+
+  // Read magnetic field strength. The values range from -20000
+  // to +20000 counts and are based on internal calibration
+  // values
+  //
+  EngduinoMagnetometer.xyz(magneticField);
+  
+  float x = magneticField[0];
+  float y = magneticField[1];
+  float z = magneticField[2];
+  Serial.print("Magnetic field strength: x = ");
+  Serial.print(x);
+  Serial.print(" counts y = ");
+  Serial.print(y);
+  Serial.print(" counts z = ");
+  Serial.print(z);
+  Serial.println(" counts");
+  
+  // Note that this is an uncalibrated temperature
+  // of the die itself. Whilst it should be a value
+  // in degrees C, the lack of calibration could mean
+  // that it's anything.
+  int8_t t = EngduinoMagnetometer.temperature();
+  Serial.print("Temperature: ");
+  Serial.println(t);
+  
+  delay(1000);
+}