第一次提交：完成了网关的单路485数据采集，还有以太网链接和MQTT配置，实现数据上报和命令下发，差一个断网储存

main/CMakeLists.txt

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+idf_component_register(SRCS "main.c"
+                    INCLUDE_DIRS "."
+                    REQUIRES nvs_flash STATUS_LED RS-485-SP3485EEN ETH_CH390H MQTT_ESP SNTP_ESP
+                    )

main/idf_component.yml

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+## IDF Component Manager Manifest File
+dependencies:
+  ## Required IDF version
+  idf:
+    version: '>=4.1.0'
+  # # Put list of dependencies here
+  # # For components maintained by Espressif:
+  # component: "~1.0.0"
+  # # For 3rd party components:
+  # username/component: ">=1.0.0,<2.0.0"
+  # username2/component2:
+  #   version: "~1.0.0"
+  #   # For transient dependencies `public` flag can be set.
+  #   # `public` flag doesn't have an effect dependencies of the `main` component.
+  #   # All dependencies of `main` are public by default.
+  #   public: true
+
+  espressif/mqtt: ^1.0.0

main/main.c

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+#include "RS-485-SP3485EEN.h"
+#include "ETH_CH390H.h"
+#include "MQTT_ESP.h"
+#include "STATUS_LED.h"
+#include "MODBUS_ESP.h"
+#include "SNTP_ESP.h"
+
+#define TAG "main"
+void app_main(void)
+{
+        // 1. 初始化LED（最先初始化，让用户知道设备已上电）
+    status_led_init();
+    status_led_blink_mode(1, 1);  // LED1 快闪：系统启动中
+    status_led_blink_mode(2, 0);  // LED2 慢闪：等待初始化
+
+    ESP_ERROR_CHECK(nvs_flash_init());
+
+    // 初始化以太网，这里包含了    esp_netif_init();和esp_event_loop_create_default();
+    eth_init();
+
+    // 初始化RS485
+    init_specific_rs485_channel(0);              // 初始化通道0
+    start_rs485_rx_task_for_channel(0, 5, 4096); // 为通道0启动接收任务
+
+    // 等待网络连接建立
+    ESP_LOGI(TAG, "Waiting for network connection...");
+    esp_netif_t *eth_netif = esp_netif_get_handle_from_ifkey("ETH_DEF"); // 获取默认以太网接口
+
+
+    // 循环等待直到获得IP地址
+    while (true)
+    {
+        esp_netif_ip_info_t ip_info;
+        if (esp_netif_get_ip_info(eth_netif, &ip_info) == ESP_OK && ip_info.ip.addr != 0)
+        {
+            ESP_LOGI(TAG, "Network connected with IP: " IPSTR, IP2STR(&ip_info.ip));
+            break;
+        }
+        ESP_LOGI(TAG, "Waiting for IP address...");
+        vTaskDelay(pdMS_TO_TICKS(1000)); // 等待1秒后重试
+    }
+
+    // 初始化SNTP时间同步服务
+    ESP_LOGI(TAG, "Initializing SNTP time synchronization...");
+    sntp_esp_init();
+
+    // 等待时间同步完成（最长等待10秒）
+    if (sntp_esp_wait_sync(10000)) {
+        ESP_LOGI(TAG, "Time synchronization completed successfully");
+    } else {
+        ESP_LOGW(TAG, "Time synchronization timeout, using local time");
+    }
+
+    ESP_LOGI(TAG, "Starting MQTT client...");
+
+    // 启动MQTT客户端
+    mqtt_app_start();
+
+        // 网络连接成功后
+    status_led_set(1, 1);  // LED1 常亮：网络正常
+    
+    // MQTT 启动后
+    status_led_blink_mode(2, 2);  // LED2 心跳：系统运行正常
+
+    // ============================
+    // 启动设备状态上报任务（每10秒上报一次）
+    // ============================
+    if (mqtt_start_device_status_task(10000) == pdPASS) {
+        ESP_LOGI(TAG, "Device status report task started");
+    } else {
+        ESP_LOGE(TAG, "Failed to start device status report task");
+    }
+
+    ESP_LOGI(TAG, "Waiting for MODBUS poll command via MQTT...");
+
+    for (;;)
+    {
+        vTaskDelay(1000 / portTICK_PERIOD_MS);
+    }
+}
+