static const uint8_t value=25;
static const struct bt_data ad[] = {
	BT_DATA_BYTES(BT_DATA_FLAGS, BT_LE_AD_NO_BREDR),
	BT_DATA_BYTES(BT_DATA_UUID16_ALL, 0xaa, 0xfe),
	//BT_DATA(BT_DATA_MANUFACTURER_DATA, mfg_data, 3),
	BT_DATA_BYTES(BT_DATA_SVC_DATA16,
      0xaa, 0xfe, /* Eddystone UUID */
      0x00, /* Eddystone-UID frame type */
      0x00, /* Calibrated Tx power at 0m */
      value, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, /* 10-byte Namespace */
      0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f) /* 6-byte Instance */
};