Hello, Xiaozhi.

main/main.cc

@@ -0,0 +1,66 @@
+#include <cstdio>
+
+#include "esp_log.h"
+#include "esp_err.h"
+#include "nvs.h"
+#include "nvs_flash.h"
+#include "driver/gpio.h"
+
+#include "WifiConfigurationAp.h"
+#include "Application.h"
+#include "SystemInfo.h"
+
+#define TAG "main"
+#define STATS_TICKS         pdMS_TO_TICKS(1000)
+
+extern "C" void app_main(void)
+{
+    // Initialize the default event loop
+    ESP_ERROR_CHECK(esp_event_loop_create_default());
+
+    // Configure GPIO1 as INPUT, reset NVS flash if the button is pressed
+    gpio_config_t io_conf;
+    io_conf.intr_type = GPIO_INTR_DISABLE;
+    io_conf.mode = GPIO_MODE_INPUT;
+    io_conf.pin_bit_mask = 1ULL << 1;
+    io_conf.pull_down_en = GPIO_PULLDOWN_DISABLE;
+    io_conf.pull_up_en = GPIO_PULLUP_ENABLE;
+    gpio_config(&io_conf);
+
+    if (gpio_get_level(GPIO_NUM_1) == 0) {
+        ESP_LOGI(TAG, "Button is pressed, reset NVS flash");
+        nvs_flash_erase();
+    }
+
+    // Initialize NVS flash for WiFi configuration
+    esp_err_t ret = nvs_flash_init();
+    if (ret == ESP_ERR_NVS_NO_FREE_PAGES || ret == ESP_ERR_NVS_NEW_VERSION_FOUND) {
+        ESP_ERROR_CHECK(nvs_flash_erase());
+        ret = nvs_flash_init();
+    }
+    ESP_ERROR_CHECK(ret);
+
+    // Get the WiFi configuration
+    nvs_handle_t nvs_handle;
+    ret = nvs_open("wifi", NVS_READONLY, &nvs_handle);
+
+    // If the WiFi configuration is not found, launch the WiFi configuration AP
+    if (ret != ESP_OK) {
+        auto app = new WifiConfigurationAp();
+        app->Start();
+        return;
+    }
+    nvs_close(nvs_handle);
+    
+    // Otherwise, launch the application
+    auto app = new Application();
+    app->Start();
+
+    // Dump CPU usage every 1 second
+    while (true) {
+        vTaskDelay(2000 / portTICK_PERIOD_MS);
+        SystemInfo::PrintRealTimeStats(STATS_TICKS);
+        int free_sram = heap_caps_get_minimum_free_size(MALLOC_CAP_INTERNAL);
+        ESP_LOGI(TAG, "Free heap size: %u minimal internal: %u", SystemInfo::GetFreeHeapSize(), free_sram);
+    }
+}