tidied up example code
tidied up example code

chaicko/ExploringBeagleBone,chaicko/ExploringBeagleBone,chaicko/ExploringBeagleBone,chaicko/ExploringBeagleBone,chaicko/ExploringBeagleBone,chaicko/ExploringBeagleBone,chaicko/ExploringBeagleBone,chaicko/ExploringBeagleBone,chaicko/ExploringBeagleBone,chaicko/ExploringBeagleBone