How to use function esp_ble_gatts_add_char twince in examples\bluetooth\bluedroid\ble\gatt_server (IDFGH-6165)

[GKoSon]

• Development Kit: ESP32-DevKitC
• Kit version (for WroverKit/PicoKit/DevKitC): [v4]
• Module or chip used: ESP32-WROOM-32
  hi

when i run
examples\bluetooth\bluedroid\ble\gatt_server\main\gatts_demo.c
examples\bluetooth\bluedroid\ble\gatt_client\main\gattc_demo.c
they are work well.

Now i wanna to connect with Nordic soc ,I wanna change the UUID to Nordic NUS.
I have nrf Connect APP in my android phone.
the right ble i wanna is like below(use nrf Connect APP )

when i change the code examples\bluetooth\bluedroid\ble\gatt_server
i find the function esp_ble_gatts_add_char only used once
so only have Rx the Tx cannot added

my code
`

static void gatts_profile_a_event_handler(esp_gatts_cb_event_t event, esp_gatt_if_t gatts_if, esp_ble_gatts_cb_param_t *param) {
uint8_t custs1_svc1[16]= {0x9E, 0xCA, 0xDC, 0x24, 0x0E, 0xE5, 0xA9, 0xE0, 0x93, 0xF3, 0xA3, 0xB5, 0x01, 0x00, 0x40, 0x6E};
uint8_t adv_char_uuid128[16]= {0x9E, 0xCA, 0xDC, 0x24, 0x0E, 0xE5, 0xA9, 0xE0, 0x93, 0xF3, 0xA3, 0xB5, 0x02, 0x00, 0x40, 0x6E};
uint8_t adv_char_uuid1282[16]= {0x9E, 0xCA, 0xDC, 0x24, 0x0E, 0xE5, 0xA9, 0xE0, 0x93, 0xF3, 0xA3, 0xB5, 0x03, 0x00, 0x40, 0x6E};

switch (event) {

case ESP_GATTS_CREATE_EVT:


    ESP_LOGI(GATTS_TAG, "CREATE_SERVICE_EVT--, status %d,  service_handle %d\n", param->create.status, param->create.service_handle);
    gl_profile_tab[PROFILE_A_APP_ID].service_handle = param->create.service_handle;
    gl_profile_tab[PROFILE_A_APP_ID].char_uuid.len = ESP_UUID_LEN_128;
    memcpy(gl_profile_tab[PROFILE_A_APP_ID].char_uuid.uuid.uuid128,adv_char_uuid128,ESP_UUID_LEN_128);
    esp_ble_gatts_start_service(gl_profile_tab[PROFILE_A_APP_ID].service_handle);
    a_property = ESP_GATT_CHAR_PROP_BIT_READ | ESP_GATT_CHAR_PROP_BIT_WRITE | ESP_GATT_CHAR_PROP_BIT_NOTIFY;
    esp_err_t add_char_ret = esp_ble_gatts_add_char(gl_profile_tab[PROFILE_A_APP_ID].service_handle, &gl_profile_tab[PROFILE_A_APP_ID].char_uuid,
                                                    ESP_GATT_PERM_READ | ESP_GATT_PERM_WRITE,
                                                    a_property,
                                                    &gatts_demo_char1_val, NULL);
    if (add_char_ret){
        ESP_LOGE(GATTS_TAG, "add char failed, error code =%x",add_char_ret);
    }



    ESP_LOGI(GATTS_TAG, "CREATE_SERVICE_EVT----, status %d,  service_handle %d\n", param->create.status, param->create.service_handle);
    gl_profile_tab[PROFILE_A_APP_ID].service_handle = param->create.service_handle;
    gl_profile_tab[PROFILE_A_APP_ID].char_uuid.len = ESP_UUID_LEN_128;
    memcpy(gl_profile_tab[PROFILE_A_APP_ID].char_uuid.uuid.uuid128,adv_char_uuid1282,ESP_UUID_LEN_128);
    esp_ble_gatts_start_service(gl_profile_tab[PROFILE_A_APP_ID].service_handle);
    a_property = ESP_GATT_CHAR_PROP_BIT_READ | ESP_GATT_CHAR_PROP_BIT_WRITE | ESP_GATT_CHAR_PROP_BIT_NOTIFY;
    esp_err_t add_char_ret2 = esp_ble_gatts_add_char(gl_profile_tab[PROFILE_A_APP_ID].service_handle, &gl_profile_tab[PROFILE_A_APP_ID].char_uuid,
                                                    ESP_GATT_PERM_READ | ESP_GATT_PERM_WRITE,
                                                    a_property,
                                                    &gatts_demo_char1_val, NULL);
    if (add_char_ret2){
        ESP_LOGE(GATTS_TAG, "add char failed, error code =%x",add_char_ret2);
    }

    break;`

How can i add 2 char to a service ？
thanks

[GKoSon]

PS:
i read nordic code he run function characteristic_add twince to add 2 char in 1 service

\nRF5_SDK_17.1.0_ddde560\components\ble\ble_services\ble_nus\ble_nus.c

#define NUS_BASE_UUID {{0x9E, 0xCA, 0xDC, 0x24, 0x0E, 0xE5, 0xA9, 0xE0, 0x93, 0xF3, 0xA3, 0xB5, 0x00, 0x00, 0x40, 0x6E}} /**< Used vendor specific UUID. */
ble_nus_init
sd_ble_uuid_vs_add
sd_ble_gatts_service_add
characteristic_add(p_nus->service_handle, &add_char_params, &p_nus->rx_handles)
characteristic_add(p_nus->service_handle, &add_char_params, &p_nus->tx_handles);

[GKoSon]

examples\bluetooth\bluedroid\ble\gatt_server_service_table\main\gatts_table_creat_demo.c
can work out

please close this issue
thanks

[Azuresword]

but in my program i can not use gatts_table,how i can slove this problem