BT_UUID_NUS_TX_VAL

#define BT_UUID_NUS_TX_VAL    BT_UUID_128_ENCODE(0x6e400003, 0xb5a3, 0xf393, 0xe0a9, 0xe50e24dcca9e)

#include <include/bluetooth/services/nus.h>

UUID of the TX Characteristic.