Custom service is advertised with NUS base UUID

Question

Dear all, I use nRF52840 custom board with nRF52 SDK and I want to advertise two more services: 
 
 one custom service (0x1523) 
 one battery service (0x180F) 
 
 and read them through my mobile with nRF Connect app. 
 I experiment with the ble_app_uart example (since I want to stream various data after connection with the mobile). 
 The problem is that the custom service, although it is advertised along with the battery service and the Nordic Uart Service (NUS), it does not have the 128 bit UUID that I set to it but instead it gets the UUID of the NUS as you can see in the following image. 
 Obviously I am doing something wrong here but I can't figure out what it is... 
 
 Here are the changes that I have performed in main.c. First I added the custom service UUID in the list along with its type (128bit) 
 #define CUSTOM_UUID_BASE {0x23, 0xD1, 0xBC, 0xEA, 0x5F, 0x78, 0x23, 0x15, 0xEF, 0xD6, 0x31, 0xBE, 0x00, 0x00, 0x15, 0x16}
#define CUSTOM_SERVICE_UUID 0x1523

static ble_uuid_t m_adv_uuids[] = 
{
 {BLE_UUID_NUS_SERVICE, NUS_SERVICE_UUID_TYPE},
 {BLE_UUID_BATTERY_SERVICE, BLE_UUID_TYPE_BLE},
 {CUSTOM_SERVICE_UUID, BLE_UUID_TYPE_VENDOR_BEGIN}
}; 
 and then I enabled init.config.ble_adv_extended_enabled flag in advertising_init() 
 static void advertising_init(void)
{
 uint32_t err_code;
 ble_advertising_init_t init;

memset(&init, 0, sizeof(init));

init.advdata.name_type = BLE_ADVDATA_FULL_NAME;
 init.advdata.include_appearance = true;
 init.advdata.flags = BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE; //BLE_GAP_ADV_FLAGS_LE_ONLY_LIMITED_DISC_MODE;
 init.advdata.uuids_complete.uuid_cnt = sizeof(m_adv_uuids) / sizeof(m_adv_uuids[0]);
 init.advdata.uuids_complete.p_uuids = m_adv_uuids;

//init.srdata.uuids_complete.uuid_cnt = sizeof(m_adv_uuids) / sizeof(m_adv_uuids[0]);
 //init.srdata.uuids_complete.p_uuids = m_adv_uuids;

init.config.ble_adv_extended_enabled = true;
 init.config.ble_adv_fast_enabled = true;
 init.config.ble_adv_fast_interval = APP_ADV_INTERVAL;
 init.config.ble_adv_fast_timeout = APP_ADV_DURATION;
 init.evt_handler = on_adv_evt;

err_code = ble_advertising_init(&m_advertising, &init);
 APP_ERROR_CHECK(err_code);

ble_advertising_conn_cfg_tag_set(&m_advertising, APP_BLE_CONN_CFG_TAG);
}

Einar Thorsrud · Accepted Answer

masterLee said: I haven't changed something else in the code. Only the parts I mentioned before. 
 Then you are still using the wrong base for your custom service, and that needs to be updated. NUS_SERVICE_UUID_TYPE is defined to BLE_UUID_TYPE_VENDOR_BEGIN, which is 2. So with this snippet you are using the same base as NUS: 
 static ble_uuid_t m_adv_uuids[] = 
{
 {BLE_UUID_NUS_SERVICE, NUS_SERVICE_UUID_TYPE},
 {BLE_UUID_BATTERY_SERVICE, BLE_UUID_TYPE_BLE},
 {CUSTOM_SERVICE_UUID, BLE_UUID_TYPE_VENDOR_BEGIN}
}; 
 You should use BLE_UUID_TYPE_VENDOR_BEGIN+1 instead (you can define it to something sensible, like is done in the SDK for NUS_SERVICE_UUID_TYPE if you like). Note that te way this is done, the order matters as mentionned before, but that is not a big problem.

Custom service is advertised with NUS base UUID

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