ESP-Nodes/ESP32-IDF_Blink/main/blink_example_main.c

/* Blink Example

   This example code is in the Public Domain (or CC0 licensed, at your option.)

   Unless required by applicable law or agreed to in writing, this
   software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
   CONDITIONS OF ANY KIND, either express or implied.
*/
#include <stdio.h>
#include <stdint.h>
#include <stddef.h>
#include <sys/param.h>

#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "driver/gpio.h"
#include "esp_log.h"
#include "led_strip.h"
#include "sdkconfig.h"

#include "mqtt_client.h"
#include "esp_system.h"
#include "esp_event.h"
#include "esp_ota_ops.h"
#include "esp_partition.h"
#include "esp_flash_partitions.h"
#include "esp_netif.h"
#include "esp_tls.h"
#include "nvs_flash.h"

static const char *TAG = "ESP32 MQTT SSL node";
static const uint8_t mqtt_eclipseprojects_io_pem_start[] = "";
extern const uint8_t mqtt_eclipseprojects_io_pem_start[] asm("_binary_mqtt_exlipseprojects_io_pem_start");
extern const uint8_t mqtt_eclipseprojects_io_pem_end[] asm("_binary_mqtt_eclipseprojects_io_pem_end");

/* Use project configuration menu (idf.py menuconfig) to choose the GPIO to blink,
   or you can edit the following line and set a number here.
*/
#define BLINK_GPIO CONFIG_BLINK_GPIO

static uint8_t s_led_state = 0;

#ifdef CONFIG_BLINK_LED_STRIP

static led_strip_handle_t led_strip;

static void blink_led(void)
{
    /* If the addressable LED is enabled */
    if (s_led_state) {
        /* Set the LED pixel using RGB from 0 (0%) to 255 (100%) for each color */
        led_strip_set_pixel(led_strip, 0, 16, 16, 16);
        /* Refresh the strip to send data */
        led_strip_refresh(led_strip);
    } else {
        /* Set all LED off to clear all pixels */
        led_strip_clear(led_strip);
    }
}

static void configure_led(void)
{
    ESP_LOGI(TAG, "Example configured to blink addressable LED!");
    /* LED strip initialization with the GPIO and pixels number*/
    led_strip_config_t strip_config = {
        .strip_gpio_num = BLINK_GPIO,
        .max_leds = 1, // at least one LED on board
    };
#if CONFIG_BLINK_LED_STRIP_BACKEND_RMT
    led_strip_rmt_config_t rmt_config = {
        .resolution_hz = 10 * 1000 * 1000, // 10MHz
        .flags.with_dma = false,
    };
    ESP_ERROR_CHECK(led_strip_new_rmt_device(&strip_config, &rmt_config, &led_strip));
#elif CONFIG_BLINK_LED_STRIP_BACKEND_SPI
    led_strip_spi_config_t spi_config = {
        .spi_bus = SPI2_HOST,
        .flags.with_dma = true,
    };
    ESP_ERROR_CHECK(led_strip_new_spi_device(&strip_config, &spi_config, &led_strip));
#else
#error "unsupported LED strip backend"
#endif
    /* Set all LED off to clear all pixels */
    led_strip_clear(led_strip);
}

#elif CONFIG_BLINK_LED_GPIO

static void blink_led(void)
{
    /* Set the GPIO level according to the state (LOW or HIGH)*/
    gpio_set_level(BLINK_GPIO, s_led_state);
}

static void send_binary(esp_mqtt_client_handle_t client)
{
    esp_partition_mmap_handle_t out_handle;
    const void *binary_address;
    const esp_partition_t *partition = esp_ota_get_running_partition();
    
    esp_partition_mmap(partition, 0, partition->size, ESP_PARTITION_MMAP_DATA, &binary_address, &out_handle);

    int binary_size = MIN(1024, partition->size);
    int msg_id = esp_mqtt_client_publish(client, "/esp32/binary", binary_address, binary_size, 0, 0);
    ESP_LOGI(TAG, "binary sent with msg_id=%d", msg_id);
}

static void configure_led(void)
{
    ESP_LOGI(TAG, "Example configured to blink GPIO LED!");
    gpio_reset_pin(BLINK_GPIO);
    /* Set the GPIO as a push/pull output */
    gpio_set_direction(BLINK_GPIO, GPIO_MODE_OUTPUT);
}

#else
#error "unsupported LED type"
#endif

static void mqtt_event_handler(void *handler_args, esp_event_base_t base, uint32_t event_id, void *event_data)
{
    esp_mqtt_event_handle_t event = event_data;
    esp_mqtt_client_handle_t client = event->client;
    int msg_id;
}

static void mqtt_app_start(void) {
    const esp_mqtt_client_config_t mqtt_cfg = {
        .broker = {
            .address.uri = "10.100.50.16",
            .verification.certificate = (const char *)mqtt_eclipseprojects_io_pem_start
        },
    };

    ESP_LOGI(TAG, "[APP] Free memory: %" PRIu32 " bytes", esp_get_free_heap_size());
    esp_mqtt_client_handle_t client = esp_mqtt_client_init(&mqtt_cfg);
    esp_mqtt_client_register_event(client, ESP_EVENT_ANY_ID, mqtt_event_handler, NULL);
    esp_mqtt_client_start(client);

    send_binary(client);
}

void app_main(void)
{

    ESP_LOGI(TAG, "[APP] Startup ...");
    ESP_LOGI(TAG, "[APP] Free memory: %" PRIu32 " bytes ", esp_get_free_heap_size());
    ESP_LOGI(TAG, "[APP] IDF version: %s", esp_get_idf_version());
    ESP_ERROR_CHECK(nvs_flash_init());
    /* Configure the peripheral according to the LED type */
    configure_led();

    while (1) {
        ESP_LOGI(TAG, "Turning the LED %s!", s_led_state == true ? "ON" : "OFF");
        blink_led();
        /* Toggle the LED state */
        s_led_state = !s_led_state;
        vTaskDelay(CONFIG_BLINK_PERIOD / portTICK_PERIOD_MS);
    }
    mqtt_app_start();
}