特性：新增 WS2812 组件并迁移至 ESP32-C3

更新编译器路径：切换至 RISC-V 工具链，以支持 ESP32-C3 芯片。
新增 WS2812 组件：集成了基于 RMT（远程控制器）外设的驱动程序，用于控制 RGB LED。
配置烧录方式：将 IDF 的 Flash 烧录类型配置为 UART 模式。

.vscode/c_cpp_properties.json

@@ -2,7 +2,7 @@
   "configurations": [
     {
       "name": "ESP-IDF",
-      "compilerPath": "/home/beihong/.espressif/tools/xtensa-esp-elf/esp-14.2.0_20251107/xtensa-esp-elf/bin/xtensa-esp32-elf-gcc",
+      "compilerPath": "/home/beihong/.espressif/tools/riscv32-esp-elf/esp-14.2.0_20251107/riscv32-esp-elf/bin/riscv32-esp-elf-gcc",
       "compileCommands": "${config:idf.buildPath}/compile_commands.json",
       "includePath": [
         "${workspaceFolder}/**"

.vscode/settings.json

@@ -13,5 +13,6 @@
     "--background-index",
     "--query-driver=**",
     "--compile-commands-dir=/home/beihong/esp_projects/esp32c3-smart-scale/build"
-  ]
+  ],
+  "idf.flashType": "UART"
 }

components/ws2812/CMakeLists.txt

@@ -0,0 +1,3 @@
+idf_component_register(SRCS "ws2812.c"
+                    INCLUDE_DIRS "include"
+                    REQUIRES led_strip driver)

components/ws2812/include/ws2812.h

@@ -0,0 +1 @@
+void ws2812_start_task(void);

components/ws2812/ws2812.c

@@ -0,0 +1,109 @@
+#include <stdio.h>
+#include <stdbool.h>
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+#include "led_strip.h"
+#include "esp_log.h"
+#include "esp_err.h"
+
+static const char *TAG = "led_strip";
+
+// --- 针对 ESP32-C3 和单颗 LED 的配置 ---
+
+// 设置为 0 使用非 DMA 模式。
+// 虽然 C3 支持 DMA，但单颗 LED 数据量极小，非 DMA 模式足够且更节省资源。
+#define LED_STRIP_USE_DMA  0
+
+// 只有 1 个灯
+#define LED_STRIP_LED_COUNT 1
+
+// GPIO 0
+#define LED_STRIP_GPIO_PIN  0
+
+// 10MHz 分辨率 (1 tick = 0.1us)
+#define LED_STRIP_RMT_RES_HZ  (10 * 1000 * 1000)
+
+// 内存块大小：单颗 LED 需要的数据非常少，设为 0 让驱动自动分配最合适的内存
+#define LED_STRIP_MEMORY_BLOCK_WORDS 0
+
+led_strip_handle_t configure_led(void)
+{
+    // 1. LED 灯带通用配置
+    led_strip_config_t strip_config = {
+        .strip_gpio_num = LED_STRIP_GPIO_PIN, // GPIO 0
+        .max_leds = LED_STRIP_LED_COUNT,      // 1 颗 LED
+        .led_model = LED_MODEL_WS2812,        // WS2812 型号
+        .color_component_format = LED_STRIP_COLOR_COMPONENT_FMT_GRB, // GRB 顺序
+        .flags = {
+            .invert_out = false, // 不反转信号
+        }
+    };
+
+    // 2. RMT 后端配置
+    led_strip_rmt_config_t rmt_config = {
+        .clk_src = RMT_CLK_SRC_DEFAULT,        // 默认时钟源
+        .resolution_hz = LED_STRIP_RMT_RES_HZ, // 10MHz 分辨率
+        .mem_block_symbols = LED_STRIP_MEMORY_BLOCK_WORDS, // 自动分配
+        .flags = {
+            .with_dma = LED_STRIP_USE_DMA,     // 不使用 DMA
+        }
+    };
+
+    // 3. 创建 LED 灯带对象
+    led_strip_handle_t led_strip;
+    // 初始化 RMT 设备
+    esp_err_t ret = led_strip_new_rmt_device(&strip_config, &rmt_config, &led_strip);
+    if (ret != ESP_OK) {
+        ESP_LOGE(TAG, "Failed to create LED strip object: %s", esp_err_to_name(ret));
+        while (1); // 初始化失败则卡死
+    }
+    
+    ESP_LOGI(TAG, "Created LED strip object with RMT backend on GPIO %d", LED_STRIP_GPIO_PIN);
+    return led_strip;
+}
+
+static void ws2812_blink_task(void *pvParameters)
+{
+    (void)pvParameters;
+
+    // 初始化 LED 灯带
+    led_strip_handle_t led_strip = configure_led();
+    uint8_t r = 0, g = 0, b = 0;
+    int color_state = 0; // 0:红, 1:绿, 2:蓝
+
+    ESP_LOGI(TAG, "Start RGB cycling");
+
+    while (1) {
+        // 根据状态设置颜色
+        if (color_state == 0) {
+            r = 50; g = 0;   b = 0;   // 红色
+            ESP_LOGI(TAG, "Color: RED");
+        } else if (color_state == 1) {
+            r = 0;   g = 50; b = 0;   // 绿色
+            ESP_LOGI(TAG, "Color: GREEN");
+        } else {
+            r = 0;   g = 0;   b = 50; // 蓝色
+            ESP_LOGI(TAG, "Color: BLUE");
+        }
+
+        // 设置像素 (索引0, R, G, B)
+        ESP_ERROR_CHECK(led_strip_set_pixel(led_strip, 0, r, g, b));
+        
+        // 刷新显示
+        ESP_ERROR_CHECK(led_strip_refresh(led_strip));
+
+        // 更新状态，0->1->2->0...
+        color_state = (color_state + 1) % 3;
+
+        // 延时 500ms
+        vTaskDelay(pdMS_TO_TICKS(1600));
+    }
+}
+
+void ws2812_start_task(void)
+{
+    BaseType_t ret = xTaskCreate(ws2812_blink_task, "ws2812_blink_task", 4096, NULL, 5, NULL);
+    if (ret != pdPASS) {
+        ESP_LOGE(TAG, "Failed to create ws2812 blink task");
+    }
+}

dependencies.lock

@@ -0,0 +1,21 @@
+dependencies:
+  espressif/led_strip:
+    component_hash: 28621486f77229aaf81c71f5e15d6fbf36c2949cf11094e07090593e659e7639
+    dependencies:
+    - name: idf
+      require: private
+      version: '>=5.0'
+    source:
+      registry_url: https://components.espressif.com/
+      type: service
+    version: 3.0.3
+  idf:
+    source:
+      type: idf
+    version: 5.5.2
+direct_dependencies:
+- espressif/led_strip
+- idf
+manifest_hash: f9f27a7bfd490a8f252ea50084db6f87c986509746a1f4fe61b5ce5bb0e44fcb
+target: esp32c3
+version: 2.0.0

main/CMakeLists.txt

@@ -1,2 +1,3 @@
 idf_component_register(SRCS "main.c"
-                    INCLUDE_DIRS ".")
+                    INCLUDE_DIRS "."
+                    REQUIRES ws2812)

main/idf_component.yml

@@ -0,0 +1,17 @@
+## 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/led_strip: ^3.0.3

main/main.c

@@ -1,6 +1,10 @@
-#include <stdio.h>
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+
+#include "ws2812.h"
 
 void app_main(void)
 {
-
+	ws2812_start_task();
+	vTaskDelete(NULL);
 }