// project-specific definitions for otaa sensor
//#define CFG_eu868 1
#define CFG_us915 1
//#define CFG_au921 1
//#define CFG_as923 1
//#define CFG_in866 1
#define CFG_sx1276_radio 1
//#define LMIC_USE_INTERRUPTS

// project-specific definitions
//#define CFG_eu868 1
#define CFG_us915 1
//#define CFG_au921 1
//#define CFG_as923 1
// #define LMIC_COUNTRY_CODE LMIC_COUNTRY_CODE_JP	/* for as923-JP */
//#define CFG_in866 1
#define CFG_sx1276_radio 1
//#define LMIC_USE_INTERRUPTS

Add example of how to select Japan country
Add example of how to select Japan country
