modify ble_app_uart example。
I change the #define to another value:
But whether lightblue or nRF connect,It only change the advertisement's UUID.The Characteristic is not change.
In function ble_nus_init() in ble_nus.c,I find it already call sd_ble_gatts_characteristic_add() and sd_ble_gatts_service_add(),sd_ble_uuid_vs_add