ESP32 Forum

Posted: **Wed Apr 17, 2024 9:16 am**

hi
i'm new to the ESP32 world. I have bought a few ESP32-C6-DevKitC-1.
I have managed to get the "helloworld" in VSCode to get build and flashed.
I have also managed to get the Hardware debugging to work.

But the simple

#include "wifi.h"

couldn't be resolved.

the includes:

#include <stdio.h>
#include <inttypes.h>
#include "sdkconfig.h"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "esp_chip_info.h"
#include "esp_flash.h"
#include "esp_system.h"
#include <esp_now.h>

work like a charm.

Astonishing for me also the

#include "C:/Users/"user"/esp/v5.2.1/esp-idf/components/esp_wifi/include/esp_private/wifi.h"

doesn't work.

What could be wrong or what should i do to get this to work.

thx for helping in advance

hape

Posted: **Thu Apr 18, 2024 3:01 am**

Why would you need wifi.h in the first place? The 'normal' way to include wifi functions is by including esp_wifi.h.

Posted: **Thu Apr 18, 2024 9:39 am**

hi
thx for answering. I understood your point.
But for me (as a beginner in the ESP32 world) it seems to be easier to make

Code: [Select all] [Expand/Collapse]

#include <WiFi.h>
Serial.begin(115200);
Serial.println();
Serial.print("ESP Board MAC Address:  ");
Serial.println(WiFi.macAddress());

GeSHi © Codebox Plus Extension

as to make this with the correct esp_wifi.h

Code: [Select all] [Expand/Collapse]

/*******************************************************************************************
    ESP32: ESP-IDF code creted in VS Code to retrieve the MAC address of the Wifi controller
            Code created by AI and OK1TK with support of the Espressive ESP32 forum
 *******************************************************************************************/
#include <stdio.h>
#include "esp_wifi.h"
#include "esp_log.h"
#include "nvs_flash.h"
void app_main()
{
    esp_err_t ret;
    //Initialize the default NVS partition.
    ret = nvs_flash_init();
    if (ret == ESP_ERR_NVS_NO_FREE_PAGES || ret == ESP_ERR_NVS_NEW_VERSION_FOUND) {
        // If NVS initialization fails due to uncleaned pages or a new version, we clear NVS and try again
        ESP_ERROR_CHECK(nvs_flash_erase());
        ret = nvs_flash_init();
    }
    ESP_ERROR_CHECK(ret);
    // TCP/IP stack initialization
    esp_netif_init();
    esp_event_loop_create_default();
    // Initialization WiFi
    wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
    ret = esp_wifi_init(&cfg);
    if (ret != ESP_OK) {
        ESP_LOGE("WiFi", "WiFi initialization FAILED!: %s", esp_err_to_name(ret));
        return;
    }
    // Retrieving the the MAC address of the WiFi interface
    uint8_t mac[6];
    ret = esp_wifi_get_mac(ESP_IF_WIFI_STA, mac);
    if (ret != ESP_OK) {
        ESP_LOGE("WiFi", "Unable to retrieve the MAC address of the WiFi interface: %s", esp_err_to_name(ret));
        return;
    }
    // Writing the MAC address of the WiFi interface to the terminal
    ESP_LOGI("WiFi", "The WiFi interface MAC address: %02x:%02x:%02x:%02x:%02x:%02x",
             mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
}C:/Users/hape/.espressif/tools/xtensa-esp-elf/esp-13.2.0_20230928/xtensa-esp-elf/xtensa-esp-elf/include

it could be that i didn't understand the idea behind the esp_wifi.h . i found https://docs.espressif.com/projects/esp ... _wifi.html as documentation.

thx for clearing my confusionv in advance
hape

Posted: **Sun Apr 21, 2024 9:43 am**

Your first code sample is for the Arduino platform and the second is for ESP-IDF. The private wifi.h header in ESP-IDF isn't the same as the WiFi.h header in Arduino and including it won't provide any Arduino-like functionality for your code.

ESP32 Forum

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Re: include wifi.h can't be resolved in VSCode