BLE5_periodic_advertising.ino

/*
   Simple BLE5 multi advertising example on esp32 C3/S3
   only ESP_BLE_GAP_SET_EXT_ADV_PROP_NONCONN_NONSCANNABLE_UNDIRECTED can be used for periodic advertising

   author: chegewara
*/

#ifndef CONFIG_BT_BLE_50_FEATURES_SUPPORTED
  #error "This SoC does not support BLE5. Try using ESP32-C3, or ESP32-S3"
#else
#include <BLEDevice.h>
#include <BLEAdvertising.h>


esp_ble_gap_ext_adv_params_t ext_adv_params_2M = {
    .type = ESP_BLE_GAP_SET_EXT_ADV_PROP_NONCONN_NONSCANNABLE_UNDIRECTED,
    .interval_min = 0x40,
    .interval_max = 0x40,
    .channel_map = ADV_CHNL_ALL,
    .own_addr_type = BLE_ADDR_TYPE_RANDOM,
    .peer_addr_type = BLE_ADDR_TYPE_RANDOM,
    .peer_addr = {0,0,0,0,0,0},
    .filter_policy = ADV_FILTER_ALLOW_SCAN_ANY_CON_ANY,
    .tx_power = EXT_ADV_TX_PWR_NO_PREFERENCE,
    .primary_phy = ESP_BLE_GAP_PHY_1M,
    .max_skip = 0,
    .secondary_phy = ESP_BLE_GAP_PHY_2M,
    .sid = 1,
    .scan_req_notif = false,
};

static uint8_t raw_scan_rsp_data_2m[] = {
        0x02, 0x01, 0x06,
        0x02, 0x0a, 0xeb,
        0x12, 0x09, 'E', 'S', 'P', '_', 'M', 'U', 'L', 'T', 'I', '_', 'A',
        'D', 'V', '_', '2', 'M', 0X0
};

static esp_ble_gap_periodic_adv_params_t periodic_adv_params = {
    .interval_min = 0x320, // 1000 ms interval
    .interval_max = 0x640,
    .properties = 0, // Do not include TX power
};

static uint8_t periodic_adv_raw_data[] = {
        0x02, 0x01, 0x06,
        0x02, 0x0a, 0xeb,
        0x03, 0x03, 0xab, 0xcd,
        0x11, 0x09, 'E', 'S', 'P', '_', 'P', 'E', 'R', 'I', 'O', 'D', 'I',
        'C', '_', 'A', 'D', 'V'
};


uint8_t addr_2m[6] = {0xc0, 0xde, 0x52, 0x00, 0x00, 0x02};

BLEMultiAdvertising advert(1); // max number of advertisement data 

void setup() {
  Serial.begin(115200);
  Serial.println("Multi-Advertising...");

  BLEDevice::init("");

  advert.setAdvertisingParams(0, &ext_adv_params_2M);
  advert.setAdvertisingData(0, sizeof(raw_scan_rsp_data_2m), &raw_scan_rsp_data_2m[0]);
  advert.setInstanceAddress(0, addr_2m);
  advert.setDuration(0, 0, 0);

  delay(100);
  advert.start();
  advert.setPeriodicAdvertisingParams(0, &periodic_adv_params);
  advert.setPeriodicAdvertisingData(0, sizeof(periodic_adv_raw_data), &periodic_adv_raw_data[0]);
  advert.startPeriodicAdvertising(0);
}

void loop() {
  delay(2000);
}
#endif