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[axel_hpplt]

Hello everyone,

When I run this code :

Code: Untitled.c Select all

#include <stdio.h>

#include <string.h>

#include "esp_system.h"

#include "esp_console.h"

#include "esp_vfs_dev.h"

#include "esp_vfs_fat.h"

#include "esp_wifi.h"

#include "driver/uart.h"

#include "nvs_flash.h"

#include "esp_http_client.h"



#define EXAMPLE_ESP_WIFI_SSID "iPhone"

#define EXAMPLE_ESP_WIFI_PASS "XXXXXXXXXXXX"



void app_main(void)

{   

    char dest[100] = "https://XXXXXXXXXXXXXXXXX.com/connect.php?texte=";

    setvbuf(stdin, NULL, _IONBF, 0);

    setvbuf(stdout, NULL, _IONBF, 0);

    ESP_ERROR_CHECK(uart_driver_install(CONFIG_ESP_CONSOLE_UART_NUM, 256, 0, 0, NULL, 0));

    esp_vfs_dev_uart_use_driver(CONFIG_ESP_CONSOLE_UART_NUM);

    esp_vfs_dev_uart_port_set_rx_line_endings(CONFIG_ESP_CONSOLE_UART_NUM, ESP_LINE_ENDINGS_CR);

    esp_vfs_dev_uart_port_set_tx_line_endings(CONFIG_ESP_CONSOLE_UART_NUM, ESP_LINE_ENDINGS_CRLF);

    nvs_flash_init();

    wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();

    ESP_ERROR_CHECK(esp_wifi_init(&cfg));

    wifi_config_t wifi_config = {

        .sta = {

            .ssid = EXAMPLE_ESP_WIFI_SSID,

            .password = EXAMPLE_ESP_WIFI_PASS,

            .threshold.authmode = WIFI_AUTH_WPA2_PSK,

            .pmf_cfg = {

                .capable = true,

                .required = false,

            },

        },

    };

    ESP_ERROR_CHECK(esp_wifi_set_mode(WIFI_MODE_STA));

    ESP_ERROR_CHECK(esp_wifi_set_config(WIFI_IF_STA, &wifi_config));

    ESP_ERROR_CHECK(esp_wifi_start());

    esp_wifi_connect();

    printf("Connected...");



    char chr[40];

    while(1){

        printf("Enter Data : ");

        scanf("%39s\n", chr);

        printf(strcat(dest, chr));

        esp_http_client_config_t config = {

            .url = strcat(dest, chr)

        };

        esp_http_client_handle_t client = esp_http_client_init(&config);

        esp_http_client_perform(client);

        esp_http_client_cleanup(client);

    }

}

I got this error :

Code: Untitled.txt Select all

assertion "Invalid mbox" failed: file "C:/Users/XXXX/Desktop/esp-idf/components/lwip/lwip/src/api/tcpip.c", line 455, function: tcpip_send_msg_wait_sem

I have no idea how to solve this problem.

Thanks you in advance.

AH.

[mbratch]

Why are you concatenating `chr` to `dest` twice?

Code: Select all

        printf(strcat(dest, chr));   // <-- here
        esp_http_client_config_t config = {
            .url = strcat(dest, chr)   // <-- here
        };

It's also not a good idea to concatenate to a literal string. Rather, you should do something like this:

Code: Select all

const char *pref = "https://XXXXXXXXXXXXXXXXX.com/connect.php?texte=";
char dest[100];
... // code that defines chr
strcpy(dest, pref);
strcat(dest, chr);    // <-- NOTE do this only once

[axel_hpplt]

Why are you concatenating `chr` to `dest` twice?

Code: Select all

        printf(strcat(dest, chr));   // <-- here
        esp_http_client_config_t config = {
            .url = strcat(dest, chr)   // <-- here
        };

It's also not a good idea to concatenate to a literal string. Rather, you should do something like this:

Code: Select all

const char *pref = "https://XXXXXXXXXXXXXXXXX.com/connect.php?texte=";
char dest[100];
... // code that defines chr
strcpy(dest, pref);
strcat(dest, chr);    // <-- NOTE do this only once

Thanks you for your reply. So, I've made your changes :

Code: Untitled.c Select all

#include <stdio.h>

#include <string.h>

#include "esp_system.h"

#include "esp_console.h"

#include "esp_vfs_dev.h"

#include "esp_vfs_fat.h"

#include "esp_wifi.h"

#include "driver/uart.h"

#include "nvs_flash.h"

#include "esp_http_client.h"



#define EXAMPLE_ESP_WIFI_SSID "iPhone de Axel"

#define EXAMPLE_ESP_WIFI_PASS "axelcroque2002"



void app_main(void)

{   

    const char *pref = "https://101testingesp32.000webhostapp.com/connect.php?texte=";

    char dest[100];

    setvbuf(stdin, NULL, _IONBF, 0);

    setvbuf(stdout, NULL, _IONBF, 0);

    ESP_ERROR_CHECK(uart_driver_install(CONFIG_ESP_CONSOLE_UART_NUM, 256, 0, 0, NULL, 0));

    esp_vfs_dev_uart_use_driver(CONFIG_ESP_CONSOLE_UART_NUM);

    esp_vfs_dev_uart_port_set_rx_line_endings(CONFIG_ESP_CONSOLE_UART_NUM, ESP_LINE_ENDINGS_CR);

    esp_vfs_dev_uart_port_set_tx_line_endings(CONFIG_ESP_CONSOLE_UART_NUM, ESP_LINE_ENDINGS_CRLF);

    nvs_flash_init();

    wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();

    ESP_ERROR_CHECK(esp_wifi_init(&cfg));

    wifi_config_t wifi_config = {

        .sta = {

            .ssid = EXAMPLE_ESP_WIFI_SSID,

            .password = EXAMPLE_ESP_WIFI_PASS,

            .threshold.authmode = WIFI_AUTH_WPA2_PSK,

            .pmf_cfg = {

                .capable = true,

                .required = false,

            },

        },

    };

    ESP_ERROR_CHECK(esp_wifi_set_mode(WIFI_MODE_STA));

    ESP_ERROR_CHECK(esp_wifi_set_config(WIFI_IF_STA, &wifi_config));

    ESP_ERROR_CHECK(esp_wifi_start());

    esp_wifi_connect();

    printf("Connected...");



    char chr[40];

    while(1){

        printf("Enter Data : ");

        scanf("%39s\n", chr);

        strcpy(dest, pref);

        esp_http_client_config_t config = {

            .url = strcat(dest, chr)

        };

        esp_http_client_handle_t client = esp_http_client_init(&config);

        esp_http_client_perform(client);

        esp_http_client_cleanup(client);

    }

}

But, I get the same error. Does anyone else have a solution please ?

[Sprite]

Note that esp_wifi_connect() only *starts* a connection attempt, and will return more-or-loss immediately; the connection isn't actually created at that time. Suggest you check e.g. the examples in esp-idf to see how to properly wait until it is.

[axel_hpplt]

Note that esp_wifi_connect() only *starts* a connection attempt, and will return more-or-loss immediately; the connection isn't actually created at that time. Suggest you check e.g. the examples in esp-idf to see how to properly wait until it is.

Thanks for your answer, I looked at what you told me (esp-idf/examples/wifi/getting-started/station) but I didn't find the way to wait properly, could you enlighten me?

[fasani]

Hello Axel,
You need to use events, just as the example uses, in order to get it working.

[YJM]

Maybe you missed the esp_netif_init(), you can follow https://github.com/espressif/esp-idf/bl ... .c#L70-L73