ApfelNetzwerk/embedded/main/apple.c

#include "nvs_flash.h"
#include "esp_netif.h"
#include "zh_network.h"
#include "driver/gpio.h"
#include "lwip/sockets.h"
#include <strings.h>

static const char *payload = "Nüttchen";

#define GPIO_OUTPUT_IO_0 2
#define GPIO_OUTPUT_IO_1 16
#define GPIO_OUTPUT_PIN_SEL ((1ULL << GPIO_OUTPUT_IO_0) | (1ULL << GPIO_OUTPUT_IO_1))

#define TAG "TCP"
#define PORT 7999
#define HOST_IP_ADDR

#define EXAMPLE_ESP_WIFI_SSID
#define EXAMPLE_ESP_WIFI_PASS

#define MAC2STR(a) (a)[0], (a)[1], (a)[2], (a)[3], (a)[4], (a)[5]

void zh_network_event_handler(void *arg, esp_event_base_t event_base, int32_t event_id, void *event_data);
// bc:dd:c2:82:82:9e
uint8_t target[6] = {0xBC, 0xDD, 0xC2, 0x82, 0x82, 0x9E};

typedef struct
{
    char char_value[30];
    int int_value;
    float float_value;
    bool bool_value;
} example_message_t;

void app_main(void)
{
    gpio_config_t io_conf;
    // disable interrupt
    io_conf.intr_type = GPIO_INTR_DISABLE;
    // set as output mode
    io_conf.mode = GPIO_MODE_OUTPUT;
    // bit mask of the pins that you want to set,e.g.GPIO15/16
    io_conf.pin_bit_mask = GPIO_OUTPUT_PIN_SEL;
    // disable pull-down mode
    io_conf.pull_down_en = 0;
    // disable pull-up mode
    io_conf.pull_up_en = 0;
    // configure GPIO with the given settings
    gpio_config(&io_conf);

    esp_log_level_set("zh_vector", ESP_LOG_NONE);
    esp_log_level_set("zh_network", ESP_LOG_NONE);
    nvs_flash_init();
    esp_netif_init();
    esp_event_loop_create_default();
    wifi_init_config_t wifi_init_config = WIFI_INIT_CONFIG_DEFAULT();
    esp_wifi_init(&wifi_init_config);

    wifi_config_t wifi_config = {
        .sta = {
            .ssid = EXAMPLE_ESP_WIFI_SSID,
            .password = EXAMPLE_ESP_WIFI_PASS,
            .channel = 7},

    };

    esp_wifi_set_config(ESP_IF_WIFI_STA, &wifi_config);

    esp_wifi_set_mode(WIFI_MODE_STA);
    esp_wifi_start();
    esp_wifi_set_channel(7, 1);
    esp_wifi_connect();
    // esp_wifi_set_max_tx_power(8); // Power reduction is for example and testing purposes only. Do not use in your own programs!
    zh_network_init_config_t network_init_config = ZH_NETWORK_INIT_CONFIG_DEFAULT();
    network_init_config.max_waiting_time = 1000;
    network_init_config.wifi_channel = 7;
    zh_network_init(&network_init_config);
#ifdef CONFIG_IDF_TARGET_ESP8266
    esp_event_handler_register(ZH_NETWORK, ESP_EVENT_ANY_ID, &zh_network_event_handler, NULL);
#else
    esp_event_handler_instance_register(ZH_NETWORK, ESP_EVENT_ANY_ID, &zh_network_event_handler, NULL, NULL);
#endif

    char rx_buffer[128];
    char addr_str[128];
    int addr_family;
    int ip_protocol;

    for (;;)
    {
        struct sockaddr_in destAddr;
        bzero(&destAddr, sizeof(destAddr));
        destAddr.sin_family = AF_INET;
        destAddr.sin_port = htons(7999);
        inet_pton(AF_INET, HOST_IP_ADDR, &destAddr.sin_addr);

        int sock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
        if (sock < 0)
        {
            ESP_LOGE(TAG, "Unable to create socket: errno %d", errno);
            return;
        }
        ESP_LOGI(TAG, "Socket created");
        int err = connect(sock, (struct sockaddr *)&destAddr, sizeof(destAddr));
        if (err != 0)
        {
            ESP_LOGE(TAG, "Socket unable to connect: errno %d", errno);
            close(sock);
            continue;
        }
        ESP_LOGI(TAG, "Successfully connected");
        for (;;)
        {
            vTaskDelay(5000 / portTICK_PERIOD_MS);
            int err = send(sock, payload, strlen(payload), 0);
            if (err < 0)
            {
                ESP_LOGE(TAG, "Error ocured during sending: errno %d", errno);
                break;
            }
        }
        close(sock);
    }

    example_message_t send_message = {0};
    strcpy(send_message.char_value, "Test Message");
    send_message.float_value = 1.234;
    send_message.bool_value = false;
    for (;;)
    {
        printf("Sending Message");
        zh_network_send(target, (uint8_t *)&send_message, sizeof(send_message));
        vTaskDelay(5000 / portTICK_PERIOD_MS);
        gpio_set_level(GPIO_OUTPUT_IO_0, 0);
        vTaskDelay(100 / portTICK_PERIOD_MS);
        gpio_set_level(GPIO_OUTPUT_IO_0, 1);
    }
}

void zh_network_event_handler(void *arg, esp_event_base_t event_base, int32_t event_id, void *event_data)
{
    switch (event_id)
    {
    case ZH_NETWORK_ON_RECV_EVENT:;
        zh_network_event_on_recv_t *recv_data = event_data;
        printf("Message from MAC %02X:%02X:%02X:%02X:%02X:%02X is received. Data lenght %d bytes.\n", MAC2STR(recv_data->mac_addr), recv_data->data_len);
        example_message_t *recv_message = (example_message_t *)recv_data->data;
        printf("Char %s\n", recv_message->char_value);
        printf("Int %d\n", recv_message->int_value);
        printf("Float %f\n", recv_message->float_value);
        printf("Bool %d\n", recv_message->bool_value);
        heap_caps_free(recv_data->data); // Do not delete to avoid memory leaks!
        gpio_set_level(GPIO_OUTPUT_IO_0, 0);
        vTaskDelay(100 / portTICK_PERIOD_MS);
        gpio_set_level(GPIO_OUTPUT_IO_0, 1);
        break;
    case ZH_NETWORK_ON_SEND_EVENT:;
        zh_network_event_on_send_t *send_data = event_data;
        if (send_data->status == ZH_NETWORK_SEND_SUCCESS)
        {
            printf("Message to MAC %02X:%02X:%02X:%02X:%02X:%02X sent success.\n", MAC2STR(send_data->mac_addr));
        }
        else
        {
            printf("Message to MAC %02X:%02X:%02X:%02X:%02X:%02X sent fail.\n", MAC2STR(send_data->mac_addr));
        }
        break;
    default:
        break;
    }
}