Hi everybody,

I’m trying to implement a simple ble gatt server with one service containing one characteristics using tizen studio for the samsung gear S3. I followed what i could find on the docs but it doesn’t seems to work and now i’m a bit lost. Here my code:

    if(bt_initialize() == BT_ERROR_NONE)
    {
        dlog_print(DLOG_INFO, LOG_TAG, "Bluetooth initialized successfully.");

        bt_adapter_state_e state = BT_ADAPTER_DISABLED;
        int ret = bt_adapter_get_state(&state);
        if (state == BT_ADAPTER_ENABLED)
            dlog_print(DLOG_INFO, LOG_TAG, "Bluetooth adapter initialized successfully.");

        // Creating gatt service
        if(bt_gatt_server_initialize() == BT_ERROR_NONE)
        {
            dlog_print(DLOG_INFO, LOG_TAG, "Gatt server initialized successfully.");

            int retval = bt_gatt_server_create(&(ad->gatt_server_handler));
            if(retval == BT_ERROR_NONE)
            {
                dlog_print(DLOG_INFO, LOG_TAG, "Gatt server created successfully.");

                if(bt_gatt_service_create(MIL_SERVICE_UUID, BT_GATT_SERVICE_TYPE_PRIMARY, &(ad->service_handler)) == BT_ERROR_NONE)
                {
                    dlog_print(DLOG_INFO, LOG_TAG, "Gatt service created successfully.");

                    if(bt_gatt_server_register_service(ad->gatt_server_handler, ad->service_handler) == BT_ERROR_NONE)
                    {
                        dlog_print(DLOG_INFO, LOG_TAG, "Service successfully added to gatt server.");

                        const char* char_val = "50";
                        if(bt_gatt_characteristic_create(MIL_CHARACTERISTIC_UUID, BT_GATT_PERMISSION_READ | BT_GATT_PERMISSION_WRITE,
                                                         BT_GATT_PROPERTY_READ | BT_GATT_PROPERTY_WRITE | BT_GATT_PROPERTY_NOTIFY,
                                                         char_val, 8, &(ad->characteristic_handler)) == BT_ERROR_NONE)
                        {
                            dlog_print(DLOG_INFO, LOG_TAG, "Characteristic created successfully.");

                            if(bt_gatt_service_add_characteristic(ad->service_handler, ad->characteristic_handler) == BT_ERROR_NONE)
                            {
                                dlog_print(DLOG_INFO, LOG_TAG, "Characteristic successfully added to service.");

                                if(bt_adapter_le_create_advertiser(&(ad->advertiser_handler)) == BT_ERROR_NONE)
                                {
                                    dlog_print(DLOG_INFO, LOG_TAG, "Advertiser successfully created.");

                                    const char *serviceUUID = "180F";
                                    int ret = bt_adapter_le_add_advertising_service_uuid(ad->advertiser_handler, BT_ADAPTER_LE_PACKET_ADVERTISING, serviceUUID);
                                    if(ret == BT_ERROR_NONE)
                                    {
                                        dlog_print(DLOG_INFO, LOG_TAG, "Service successfully added to advertiser.");

                                        if(bt_adapter_le_set_advertising_device_name(ad->advertiser_handler, BT_ADAPTER_LE_PACKET_SCAN_RESPONSE, true) == BT_ERROR_NONE)
                                        {
                                            dlog_print(DLOG_INFO, LOG_TAG, "Device name successfully added to advertiser.");

                                            int ret = bt_adapter_le_start_advertising_new(ad->advertiser_handler, NULL, NULL);
                                            if(ret == BT_ERROR_NONE)
                                            {
                                                dlog_print(DLOG_INFO, LOG_TAG, "Advertiser successfully started.");

                                            }
                                            else
                                            {
                                                dlog_print(DLOG_ERROR, LOG_TAG, "Error occurred when starting advertiser! %d", ret);
                                            }
                                        }
                                        else
                                        {
                                            dlog_print(DLOG_ERROR, LOG_TAG, "Error occurred when adding device name to advertiser!");
                                        }
                                    }
                                    else
                                    {
                                        char* errMsg = get_error_message(ret);
                                        dlog_print(DLOG_ERROR, LOG_TAG, "Error occurred when adding service to advertiser! %d", ret);
                                        dlog_print(DLOG_ERROR, LOG_TAG, "Error occurred when adding service to advertiser! %s", errMsg);
                                    }
                                }
                                else
                                {
                                    dlog_print(DLOG_ERROR, LOG_TAG, "Error occurred when creating advertiser!");
                                }

                                if(bt_gatt_server_start() == BT_ERROR_NONE)
                                {
                                    dlog_print(DLOG_INFO, LOG_TAG, "Gatt server successfully started.");
                                }
                                else
                                {
                                    dlog_print(DLOG_ERROR, LOG_TAG, "Error occurred when starting gatt server!");
                                }
                            }
                            else
                            {
                                dlog_print(DLOG_ERROR, LOG_TAG, "Error occurred when adding characteristic to service!");
                            }
                        }
                        else
                        {
                            dlog_print(DLOG_ERROR, LOG_TAG, "Error occurred when creating characteristic!");
                        }
                    }
                    else
                    {
                        dlog_print(DLOG_ERROR, LOG_TAG, "Error occurred when adding service to gatt server!");
                    }
                }
                else
                {
                    dlog_print(DLOG_ERROR, LOG_TAG, "Error occurred when creating gatt service!");
                }

            }
            else
            {
                dlog_print(DLOG_ERROR, LOG_TAG, "Error occurred when creating gatt server!");
            }
        }
        else
        {
            dlog_print(DLOG_ERROR, LOG_TAG, "Error occurred when initializing gatt server!");
        }
    }
    else
    {
        dlog_print(DLOG_ERROR, LOG_TAG, "Error occurred when initializing bluetooth!");
    }

I know my code isn’t very digest but i just wanted to test quickly how to setup the whole gatt and clean up the code when this works. There aren’t any errors in my log but sadly when i try to see this new service using a ble sniffer on my phone it doesn’t show up (only the 2 basic services are showing up). Here my log:

06-26 08:18:24.189 : INFO / milservice ( 4679 : 4679 ) : Bluetooth initialized successfully.
06-26 08:18:24.209 : INFO / milservice ( 4679 : 4679 ) : Bluetooth adapter initialized successfully.
06-26 08:18:24.229 : INFO / milservice ( 4679 : 4679 ) : Gatt server initialized successfully.
06-26 08:18:24.229 : INFO / milservice ( 4679 : 4679 ) : Gatt server created successfully.
06-26 08:18:24.229 : INFO / milservice ( 4679 : 4679 ) : Gatt service created successfully.
06-26 08:18:24.229 : INFO / milservice ( 4679 : 4679 ) : Service successfully added to gatt server.
06-26 08:18:24.229 : INFO / milservice ( 4679 : 4679 ) : Characteristic created successfully.
06-26 08:18:24.229 : INFO / milservice ( 4679 : 4679 ) : Characteristic successfully added to service.
06-26 08:18:24.229 : INFO / milservice ( 4679 : 4679 ) : Advertiser successfully created.
06-26 08:18:24.229 : INFO / milservice ( 4679 : 4679 ) : Service successfully added to advertiser.
06-26 08:18:24.229 : INFO / milservice ( 4679 : 4679 ) : Device name successfully added to advertiser.
06-26 08:18:24.449 : INFO / milservice ( 4679 : 4679 ) : Advertiser successfully started.
06-26 08:18:24.459 : INFO / milservice ( 4679 : 4679 ) : Gatt server successfully started.

I don’t know what i’m missing or if i do something wrong..