ESP32-C5与行空板K10：打造智能语音控制的LED灯光系统 简单

云天2025.10.10

#include <WiFi.h> #include <WebSocketMCP.h> #include <ArduinoJson.h> #include <Adafruit_NeoPixel.h> #define PIN 3 #define NUMPIXELS 5 Adafruit_NeoPixel pixels(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800); // WiFi配置 const char* ssid = "*****"; const char* password = "******"; // MCP服务器配置 const char* mcpEndpoint = "wss://api.xiaozhi.me/mcp/?token=******************"; // 创建MCP客户端实例 WebSocketMCP mcpClient; // 效果控制变量 int currentEffect = 0; unsigned long previousMillis = 0; int effectPosition = 0; String currentColor = "0,255,0"; // 默认绿色 // 连接状态回调函数 void onConnectionStatus(bool connected) { if (connected) { Serial.println("[MCP] 已连接到服务器"); registerMcpTools(); // 连接成功后注册工具 } else { Serial.println("[MCP] 与服务器断开连接"); } } void setup() { Serial.begin(115200); pixels.begin(); pixels.show(); // 初始化时关闭所有灯 // 连接WiFi WiFi.begin(ssid, password); while (WiFi.status() != WL_CONNECTED) { delay(500); Serial.print("."); } Serial.println("WiFi已连接"); // 初始化MCP客户端 mcpClient.begin(mcpEndpoint, onConnectionStatus); } void loop() { mcpClient.loop(); // 处理MCP客户端事件 // 根据当前效果执行动画 switch(currentEffect) { case 0: // 无效果 - 静态显示 break; case 1: // 流水灯效果 runningLights(); break; case 2: // 呼吸灯效果 breathingEffect(); break; case 3: // 彩虹效果 rainbowCycle(); break; case 4: // 警车灯效果 policeLights(); break; case 5: // 颜色渐变效果 colorFade(); break; } delay(10); } // 注册MCP工具 void registerMcpTools() { // 工具1: 控制单个灯 mcpClient.registerTool( "neopixel_single", "控制单个LED灯，参数：灯号(0-4)，红色(0-255)，绿色(0-255)，蓝色(0-255)，例如：设置第2个灯为红色", "{\"type\":\"object\",\"properties\":{\"pixel\":{\"type\":\"number\",\"minimum\":0,\"maximum\":4},\"red\":{\"type\":\"number\",\"minimum\":0,\"maximum\":255},\"green\":{\"type\":\"number\",\"minimum\":0,\"maximum\":255},\"blue\":{\"type\":\"number\",\"minimum\":0,\"maximum\":255}},\"required\":[\"pixel\",\"red\",\"green\",\"blue\"]}", [](const String& args) { DynamicJsonDocument doc(256); deserializeJson(doc, args); int pixel = doc["pixel"]; int red = doc["red"]; int green = doc["green"]; int blue = doc["blue"]; if (pixel >= 0 && pixel < NUMPIXELS) { pixels.setPixelColor(pixel, pixels.Color(red, green, blue)); pixels.show(); currentEffect = 0; // 切换到静态模式 String response = "设置灯" + String(pixel) + "为颜色(R:" + String(red) + ",G:" + String(green) + ",B:" + String(blue) + ")"; return WebSocketMCP::ToolResponse("{\"success\":true,\"message\":\"" + response + "\"}"); } else { return WebSocketMCP::ToolResponse("{\"success\":false,\"message\":\"灯号无效，请输入0-4\"}"); } } ); // 工具2: 控制所有灯 mcpClient.registerTool( "neopixel_all", "控制所有LED灯，参数：红色(0-255)，绿色(0-255)，蓝色(0-255)，例如：设置所有灯为蓝色", "{\"type\":\"object\",\"properties\":{\"red\":{\"type\":\"number\",\"minimum\":0,\"maximum\":255},\"green\":{\"type\":\"number\",\"minimum\":0,\"maximum\":255},\"blue\":{\"type\":\"number\",\"minimum\":0,\"maximum\":255}},\"required\":[\"red\",\"green\",\"blue\"]}", [](const String& args) { DynamicJsonDocument doc(256); deserializeJson(doc, args); int red = doc["red"]; int green = doc["green"]; int blue = doc["blue"]; for(int i = 0; i < NUMPIXELS; i++) { pixels.setPixelColor(i, pixels.Color(red, green, blue)); } pixels.show(); currentEffect = 0; // 切换到静态模式 currentColor = String(red) + "," + String(green) + "," + String(blue); String response = "设置所有灯为颜色(R:" + String(red) + ",G:" + String(green) + ",B:" + String(blue) + ")"; return WebSocketMCP::ToolResponse("{\"success\":true,\"message\":\"" + response + "\"}"); } ); // 工具3: 开关控制 mcpClient.registerTool( "neopixel_switch", "开关所有LED灯，参数：状态(开灯、关灯)", "{\"type\":\"object\",\"properties\":{\"state\":{\"type\":\"string\",\"enum\":[\"开灯\",\"关灯\"]}},\"required\":[\"state\"]}", [](const String& args) { DynamicJsonDocument doc(256); deserializeJson(doc, args); String state = doc["state"]; if (state == "开灯") { // 使用当前颜色或默认绿色开灯 int red, green, blue; sscanf(currentColor.c_str(), "%d,%d,%d", &red, &green, &blue); for(int i = 0; i < NUMPIXELS; i++) { pixels.setPixelColor(i, pixels.Color(red, green, blue)); } pixels.show(); currentEffect = 0; return WebSocketMCP::ToolResponse("{\"success\":true,\"message\":\"已开灯\"}"); } else if (state == "关灯") { pixels.clear(); pixels.show(); currentEffect = 0; return WebSocketMCP::ToolResponse("{\"success\":true,\"message\":\"已关灯\"}"); } return WebSocketMCP::ToolResponse("{\"success\":false,\"message\":\"参数错误\"}"); } ); // 工具4: 灯光效果 mcpClient.registerTool( "neopixel_effect", "设置LED灯光效果，参数：效果类型(流水灯、呼吸灯、彩虹灯、警车灯、颜色渐变、关闭效果)", "{\"type\":\"object\",\"properties\":{\"effect\":{\"type\":\"string\",\"enum\":[\"流水灯\",\"呼吸灯\",\"彩虹灯\",\"警车灯\",\"颜色渐变\",\"关闭效果\"]}},\"required\":[\"effect\"]}", [](const String& args) { DynamicJsonDocument doc(256); deserializeJson(doc, args); String effect = doc["effect"]; if (effect == "流水灯") { currentEffect = 1; effectPosition = 0; } else if (effect == "呼吸灯") { currentEffect = 2; } else if (effect == "彩虹灯") { currentEffect = 3; effectPosition = 0; } else if (effect == "警车灯") { currentEffect = 4; effectPosition = 0; } else if (effect == "颜色渐变") { currentEffect = 5; effectPosition = 0; } else if (effect == "关闭效果") { currentEffect = 0; } return WebSocketMCP::ToolResponse("{\"success\":true,\"message\":\"已切换到效果:" + effect + "\"}"); } ); Serial.println("[MCP] NeoPixel控制工具已注册"); } // ========== 灯光效果函数 ========== // 流水灯效果 void runningLights() { unsigned long currentMillis = millis(); if (currentMillis - previousMillis >= 150) { previousMillis = currentMillis; // 清除所有灯 for(int i = 0; i < NUMPIXELS; i++) { pixels.setPixelColor(i, pixels.Color(0, 0, 0)); } // 设置当前灯和下一个灯 int current = effectPosition % NUMPIXELS; int next = (effectPosition + 1) % NUMPIXELS; pixels.setPixelColor(current, pixels.Color(0, 150, 0)); // 主灯绿色 pixels.setPixelColor(next, pixels.Color(0, 50, 0)); // 下一个灯暗绿色 pixels.show(); effectPosition = (effectPosition + 1) % NUMPIXELS; } } // 呼吸灯效果 void breathingEffect() { unsigned long currentMillis = millis(); if (currentMillis - previousMillis >= 20) { previousMillis = currentMillis; // 使用正弦波计算亮度 float breath = (exp(sin(millis()/2000.0*PI)) - 0.36787944)*108.0; uint32_t color = pixels.Color(0, breath, 0); // 绿色呼吸 for(int i = 0; i < NUMPIXELS; i++) { pixels.setPixelColor(i, color); } pixels.show(); } } // 彩虹效果 void rainbowCycle() { unsigned long currentMillis = millis(); if (currentMillis - previousMillis >= 100) { previousMillis = currentMillis; for(int i = 0; i < NUMPIXELS; i++) { // 计算每个灯的颜色 int hue = (effectPosition * 256 / NUMPIXELS) + (i * 256 / NUMPIXELS); uint32_t color = wheel(hue & 255); pixels.setPixelColor(i, color); } pixels.show(); effectPosition = (effectPosition + 1) % 256; } } // 警车灯效果 void policeLights() { unsigned long currentMillis = millis(); if (currentMillis - previousMillis >= 300) { previousMillis = currentMillis; if (effectPosition == 0) { // 红色闪烁 for(int i = 0; i < NUMPIXELS; i++) { pixels.setPixelColor(i, pixels.Color(255, 0, 0)); } effectPosition = 1; } else { // 蓝色闪烁 for(int i = 0; i < NUMPIXELS; i++) { pixels.setPixelColor(i, pixels.Color(0, 0, 255)); } effectPosition = 0; } pixels.show(); } } // 颜色渐变效果 void colorFade() { unsigned long currentMillis = millis(); if (currentMillis - previousMillis >= 100) { previousMillis = currentMillis; // 在多个颜色间渐变 uint32_t colors[] = { pixels.Color(255, 0, 0), // 红 pixels.Color(255, 255, 0), // 黄 pixels.Color(0, 255, 0), // 绿 pixels.Color(0, 255, 255), // 青 pixels.Color(0, 0, 255), // 蓝 pixels.Color(255, 0, 255) // 紫 }; int numColors = 6; int currentColor = (effectPosition / 50) % numColors; int nextColor = (currentColor + 1) % numColors; float blendRatio = (effectPosition % 50) / 50.0; uint32_t blended = colorBlend(colors[currentColor], colors[nextColor], blendRatio); for(int i = 0; i < NUMPIXELS; i++) { pixels.setPixelColor(i, blended); } pixels.show(); effectPosition = (effectPosition + 1) % (50 * numColors); } } // ========== 辅助函数 ========== // 生成彩虹色轮 uint32_t wheel(byte WheelPos) { WheelPos = 255 - WheelPos; if(WheelPos < 85) { return pixels.Color(255 - WheelPos * 3, 0, WheelPos * 3); } if(WheelPos < 170) { WheelPos -= 85; return pixels.Color(0, WheelPos * 3, 255 - WheelPos * 3); } WheelPos -= 170; return pixels.Color(WheelPos * 3, 255 - WheelPos * 3, 0); } // 颜色混合函数 uint32_t colorBlend(uint32_t color1, uint32_t color2, float ratio) { int r1 = (color1 >> 16) & 0xFF; int g1 = (color1 >> 8) & 0xFF; int b1 = color1 & 0xFF; int r2 = (color2 >> 16) & 0xFF; int g2 = (color2 >> 8) & 0xFF; int b2 = color2 & 0xFF; int r = r1 + (r2 - r1) * ratio; int g = g1 + (g2 - g1) * ratio; int b = b1 + (b2 - b1) * ratio; return pixels.Color(r, g, b); }