Mesh sd_ble_gatts_hvx

[Oguz Emre]

First of all I appreciate your help.I am using mesh example in https://github.com/NordicSemiconductor/nRF51-ble-bcast-mesh link.I can send data by providing connection with the phone by using NRF_Connect application. but how can I send data with DK_Board?I wanna use sd_ble_gatts_hvx function but there is no service how can i can find handle no?the following code gives error could you please help me? Thanks in advance.

    uint8_t a[1]={0x67}; 
    void send_gat() { 	              
    uint16_t len;
    uint16_t               hvx_len;
    ble_gatts_hvx_params_t hvx_params;

    len     = 1; 		
    hvx_len = len;

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

    hvx_params.handle=???;
    hvx_params.type   = BLE_GATT_HVX_NOTIFICATION;
    hvx_params.offset = 0;
    hvx_params.p_len  = &hvx_len;
    hvx_params.p_data = a; 
    sd_ble_gatts_value_set
    er= sd_ble_gatts_hvx(???,
                                             &hvx_params);

er = error code = 0x05;

Thank you

[Jørgen Holmefjord]

I'm not sure I understand what you mean. Do you want to use a DK board to connect to a mesh BLE gateway node to controll the mesh? I.e., replace your phone with a DK? Could you describe your setup in more detail? sd_ble_gatts_hvx() is used by the peripheral to update a value in the GATT table and notify/indicate to the connected client (central) that there is a value change. If I understand you correctly, you want the central side to write to the GATT table. For this you should use sd_ble_gattc_write() function.