1 files changed, 70 insertions, 0 deletions
diff --git a/arduino_libs_1_0/I2C/examples/HMC5883L/HMC5883L.pde b/arduino_libs_1_0/I2C/examples/HMC5883L/HMC5883L.pde
new file mode 100644
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--- /dev/null
+++ b/arduino_libs_1_0/I2C/examples/HMC5883L/HMC5883L.pde
@@ -0,0 +1,70 @@
+/*******************************************
+ Sample sketch that configures an HMC5883L 3 axis
+ magnetometer to continuous mode and reads back 
+ the three axis of data.
+ Code compiles to a size of 1500 bytes
+ Equivalent Wire Library code compiles to 2032 bytes
+ *******************************************/
+
+#include <I2C.h>
+
+#define HMC5883L  0x1E 
+
+int x = 0;
+int y = 0;
+int z = 0;
+
+
+void setup()
+{
+  I2c.begin();
+  I2c.write(HMC5883L,0x02,0x00); //configure device for continuous mode
+}
+
+void loop()
+{
+  I2c.read(HMC5883L,0x03,6); //read 6 bytes (x,y,z) from the device
+  x = I2c.receive() << 8;
+  x |= I2c.receive();
+  y = I2c.receive() << 8;
+  y |= I2c.receive();
+  z = I2c.receive() << 8;
+  z |= I2c.receive(); 
+}
+
+
+/* Wire library equivalent would be this 
+
+//#include <Wire.h>
+
+#define HMC5883L  0x1E 
+
+int x = 0;
+int y = 0;
+int z = 0;
+
+
+void setup()
+{
+  Wire.begin();
+  Wire.beginTransmission(HMC5883L);
+  Wire.send(0x02);
+  Wire.send(0x00);
+  Wire.endTransmission();
+}
+
+void loop()
+{
+  Wire.beginTransmission(HMC5883L);
+  Wire.send(0x03);
+  Wire.endTransmission();
+  Wire.requestFrom(HMC5883L,6);
+  x = Wire.receive() << 8;
+  x |= Wire.receive();
+  y = Wire.receive() << 8;
+  y |= Wire.receive();
+  z = Wire.receive() << 8;
+  z |= Wire.receive(); 
+}
+
+********************************************/