how to add custom data in advertise packet with sdk17.2.0

RE: how to add custom data in advertise packet with sdk17.2.0

Jared — Fri, 03 Sep 2021 13:53:04 GMT

You don't specify what the problem is. Are you getting any errors?

RE: how to add custom data in advertise packet with sdk17.2.0

swetha Paladugu — Fri, 27 Aug 2021 06:30:48 GMT

And i have already tried this code.

ret_code_t err_code;
ble_advdata_t mydata;
ble_advdata_manuf_data_t manuf_specific_data;

uint8_t data[] = "New!"; //data to include in the manufacturer field

manuf_specific_data.data.p_data = data;
manuf_specific_data.data.size = sizeof(data);
manuf_specific_data.company_identifier = APP_COMPANY_IDENTIFIER; // company identifier is required

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

mydata.flags = BLE_GAP_ADV_FLAG_BR_EDR_NOT_SUPPORTED;
mydata.p_manuf_specific_data = &manuf_specific_data;

/*swap adv data buffer - from API doc: "In order to update advertising
data while advertising,new advertising buffers must be provided"*/
m_adv_data.adv_data.p_data = (m_adv_data.adv_data.p_data == m_encoded_data[0])
? m_encoded_data[1] : m_encoded_data[0];

err_code = ble_advdata_encode(&mydata, m_adv_data.adv_data.p_data, &m_adv_data.adv_data.len);
APP_ERROR_CHECK(err_code);

err_code = sd_ble_gap_adv_set_configure(&(m_advertising.adv_handle), &m_adv_data, NULL);
APP_ERROR_CHECK(err_code);

But is that ble_advdata_encode(); needed for sure? Can i send data without encoding?

RE: how to add custom data in advertise packet with sdk17.2.0

swetha Paladugu — Fri, 27 Aug 2021 06:28:46 GMT

I went through the tutorial. This code is for adding data in advertising_init() funciton called before calling advertising_start() function. I want to update data during advertising but a button press or something.

static void advertising_init(void)
{
ret_code_t err_code;
ble_advertising_init_t init; // Struct containing advertising parameters
// Build advertising data struct to pass into @ref ble_advertising_init.
memset(&init, 0, sizeof(init));

ble_advdata_manuf_data_t manuf_data; //Variable to hold manufacturer specific data
uint8_t data[] = "SomeData!"; //Our data to advertise
manuf_data.company_identifier = 0x0059; //Nordics company ID
manuf_data.data.p_data = data;
manuf_data.data.size = sizeof(data);
init.advdata.p_manuf_specific_data = &manuf_data;

init.advdata.name_type = BLE_ADVDATA_FULL_NAME; // Use a shortened name
init.advdata.short_name_len = 6; // Advertise only first 6 letters of name
init.advdata.flags = BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_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.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);
}

RE: how to add custom data in advertise packet with sdk17.2.0

Jared — Thu, 26 Aug 2021 12:03:46 GMT

Hi,

Please see our tutorial on advertising on how to customize the advertising packet.

regards

Jared