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> HCI Event: LE Meta Event (0x3e) plen 28                   #8 [hci0] 24.931439
      LE Advertising Report (0x02)
        Num reports: 1
        Event type: Scan response - SCAN_RSP (0x04)
        Address type: Public (0x00)
        Address: 00:C2:C6:D1:E8:44 (OUI 00-C2-C6)
        Data length: 9
        Name (complete): 60 c6 fd 3f 0a eb 03 03 ab
        RSSI: -57 dBm (0xc7)
        

Code: Select all

#include <stdint.h>
#include <string.h>
#include <stdbool.h>
#include <stdio.h>
#include "controller.h"
#include "driver/uart.h"

#include "bt.h"
#include "nvs_flash.h"
#include "esp_bt_device.h"
#include "esp_gap_ble_api.h"
#include "esp_bt_main.h"
#include "esp_system.h"
#include "btc_main.h"


static const char *MY_TAG = "BLE_PURE";

static esp_ble_scan_params_t ble_scan_params = {
    .scan_type              = BLE_SCAN_TYPE_ACTIVE,
    .own_addr_type          = BLE_ADDR_TYPE_PUBLIC,
    .scan_filter_policy     = BLE_SCAN_FILTER_ALLOW_ALL,
    .scan_interval          = 0x50,
    .scan_window            = 0x30
};



static void esp_gap_cb(esp_gap_ble_cb_event_t event, esp_ble_gap_cb_param_t *param)
{
	esp_err_t ret;
	uint8_t *adv_data = NULL;
	
	esp_ble_gap_cb_param_t *p_data = (esp_ble_gap_cb_param_t *) param;
	ESP_LOGI(MY_TAG, "We're in the cb func to the gap module, event = %x", event); //event types: see esp_gap_ble_api.h
	
	if (event == ESP_GAP_BLE_SCAN_RESULT_EVT) {		
				esp_log_buffer_hex(MY_TAG, param->scan_rst.bda, sizeof(esp_bd_addr_t)); //bdaddr
		ESP_LOGI(MY_TAG, "SCAN_RESULT_EVT of type %x", p_data->scan_rst.ble_evt_type); //****I always get 0 ESP_BLE_EVT_CONN_ADV and should get ESP_BLE_EVT_SCAN_RSP sometimes *****
		ESP_LOGI(MY_TAG, "adv_data_len = %i", p_data->scan_rst.adv_data_len);
		adv_data = p_data->scan_rst.ble_adv;
            printf("data: ");
            for (int j = 0; j < p_data->scan_rst.adv_data_len; j++) {
                printf("%02x ", adv_data[j]);
            }
            printf("\n");
	}
	
	if (event == ESP_GAP_BLE_SCAN_PARAM_SET_COMPLETE_EVT) {
		ESP_LOGI(MY_TAG, "it's a SCAN_PARAM_SET_COMPLETE_EVT");		
		ESP_LOGI(MY_TAG, "+++++++status = %i ", p_data->scan_param_cmpl.status); //esp_bt_status_t
		
		ret = esp_ble_gap_start_scanning(200); //duration in s
	}
	

	
}

void app_main()
{
    esp_err_t ret;
    
    
    esp_bt_controller_config_t bt_cfg = BT_CONTROLLER_INIT_CONFIG_DEFAULT();

    nvs_flash_init();
    ret = esp_bt_controller_init(&bt_cfg);
    if (ret) {
        ESP_LOGE(MY_TAG, "%s enable controller failed\n", __func__);
        return;
    }

    ret = esp_bt_controller_enable(ESP_BT_MODE_BTDM); //"Now only support BTDM" (components/bt/include/bt.h) donc si tu tentes BLE ça plante
    if (ret) {
        ESP_LOGE(MY_TAG, "%s enable controller failed\n", __func__);
        return;
    }

    ESP_LOGI(MY_TAG, "%s init bluetooth", __func__);
    ret = esp_bluedroid_init();
    if (ret) {
        ESP_LOGE(MY_TAG, "%s init bluetooth failed", __func__);
        return;
    }
    
    ret = esp_bluedroid_enable();
    if (ret) {
        ESP_LOGE(MY_TAG, "%s enable bluetooth failed\n", __func__);
        return;
    }
    
    //register the scan callback function to the gap module
    if ((ret = esp_ble_gap_register_callback(esp_gap_cb)) != ESP_OK) {
        ESP_LOGE(MY_TAG, "gap register error, error code = %x", ret);
        return;
    }
    
    
    ret = esp_ble_gap_set_scan_params(&ble_scan_params);
		ESP_LOGI(MY_TAG, "******set scan param returns = %i", ret); //will generate ESP_GAP_BLE_SCAN_PARAM_SET_COMPLETE_EVT 
}

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...
I (186338) BLE_PURE: We're in the cb func to the gap module, event = 3
I (186338) BLE_PURE: 00 c2 c6 d1 e8 44 
I (186338) BLE_PURE: SCAN_RESULT_EVT of type 0
I (186348) BLE_PURE: adv_data_len = 14
data: 01 02 03 04 05 06 07 0e cb 05 0c 20 00 80 
...

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uint8_t  ble_adv[ESP_BLE_ADV_DATA_LEN_MAX + ESP_BLE_SCAN_RSP_DATA_LEN_MAX];     /*!< Received EIR */