Wokwi - Online ESP32, STM32, Arduino Simulator

#include <WiFi.h>
#include <WebServer.h>
#include <HTTPClient.h>
#include <ArduinoJson.h>
#include <ESP32Servo.h>

// ====== WiFi ======
const char* WIFI_SSID     = "Wokwi-GUEST";
const char* WIFI_PASSWORD = "";
const char* API_KEY       = "b453666eb3d04c1fa7c608375d88f7fc";

// ====== Azure OpenAI ======
const char* ENDPOINT   = "artificialintelligence.openai.azure.com";
const char* DEPLOYMENT = "test";  
const char* API_VERSION = "2023-05-15";

// ====== Сервер ======
WebServer server(80);

// ====== Піни ======
const int LED1 = 26;
const int LED2 = 27;
const int SERVO_PIN = 16;

Servo myServo;

bool led1State = false;
bool led2State = false;
bool doorOpen  = false;

// ====== Виконання дій з JSON ======
void executeAction(const String& action, const String& value) {
  if (action == "led1") {
    led1State = (value == "on");
    digitalWrite(LED1, led1State);
  }
  else if (action == "led2") {
    led2State = (value == "on");
    digitalWrite(LED2, led2State);
  }
  else if (action == "door") { 
    if (value == "open") {
      myServo.write(90);
      doorOpen = true;
    }
    else if (value == "close") {
      myServo.write(0);
      doorOpen = false;
    }
  }
}

// ====== Виклик ШІ через Azure OpenAI ======
String askAI(const String& input){
  DynamicJsonDocument req(2048);
  req["model"] = "gpt-3.5-turbo"; // назва ігнорується в Azure
  JsonArray msgs = req.createNestedArray("messages");

  JsonObject sys = msgs.createNestedObject();
  sys["role"] = "system";
  sys["content"] = "You are a smart home AI assistant. Respond ONLY in JSON with {action:'led1/led2/door', value:'on/off/open/close'}.";

  JsonObject usr = msgs.createNestedObject();
  usr["role"] = "user";
  usr["content"] = input;

  // Перевірка DNS
  IPAddress ip;
  if (!WiFi.hostByName(ENDPOINT, ip)) {
    Serial.println("DNS lookup failed!");
    return "{}";
  }
  Serial.print("Resolved IP: ");
  Serial.println(ip);

  String url = "https://" + String(ENDPOINT) + "/openai/deployments/" + DEPLOYMENT +
               "/chat/completions?api-version=" + API_VERSION;

  HTTPClient http;
  http.begin(url);
  // http.setInsecure(); // 🔥 ігноруємо TLS-сертифікати
  http.addHeader("Content-Type","application/json");
  http.addHeader("api-key", API_KEY);

  String body;
  serializeJson(req, body);

  int code = http.POST(body);
  String aiResp = "{}";

  if (code == 200) {
    DynamicJsonDocument resp(4096);
    deserializeJson(resp, http.getString());
    aiResp = resp["choices"][0]["message"]["content"].as<String>();
    Serial.println("AI said: " + aiResp);
  } else {
    Serial.println("AI HTTP error: " + String(code));
  }
  http.end();
  return aiResp;
}

// ====== Веб-інтерфейс ======
void handleRoot() {
  String html = R"rawliteral(
    <!DOCTYPE html><html>
    <head><meta charset="utf-8"><title>ESP32 AI Control</title></head>
    <body style="font-family:sans-serif;text-align:center;">
      <h2>🤖 AI Controlled ESP32</h2>
      <form action="/command" method="POST">
        <input type="text" name="cmd" placeholder="Введіть команду" style="width:300px;height:30px;font-size:18px;">
        <input type="submit" value="Відправити" style="height:35px;">
      </form>
      <p>LED1: %LED1%</p>
      <p>LED2: %LED2%</p>
      <p>Door: %DOOR%</p>
    </body></html>
  )rawliteral";

  html.replace("%LED1%", led1State ? "ON" : "OFF");
  html.replace("%LED2%", led2State ? "ON" : "OFF");
  html.replace("%DOOR%", doorOpen ? "OPEN" : "CLOSED");

  server.send(200, "text/html", html);
}

void handleCommand() {
  if (server.hasArg("cmd")) {
    String cmd = server.arg("cmd");
    Serial.println("User command: " + cmd);

    String aiResp = askAI(cmd);

    // Парсимо JSON
    DynamicJsonDocument doc(512);
    DeserializationError err = deserializeJson(doc, aiResp);
    if (!err) {
      String action = doc["action"];
      String value = doc["value"];
      executeAction(action, value);
    } else {
      Serial.println("JSON parse error: " + String(err.c_str()));
    }

    server.sendHeader("Location", "/");
    server.send(303);
  } else {
    server.send(400, "text/plain", "No command");
  }
}

// ====== Setup ======
void setup() {
  Serial.begin(115200);
  pinMode(LED1, OUTPUT);
  pinMode(LED2, OUTPUT);

  myServo.attach(SERVO_PIN);
  myServo.write(0);

  WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
  while (WiFi.status() != WL_CONNECTED) {
    delay(200);
    Serial.print(".");
  }
  Serial.println("\nWiFi connected!");
  Serial.println(WiFi.localIP());

  server.on("/", handleRoot);
  server.on("/command", HTTP_POST, handleCommand);
  server.begin();
  Serial.println("Web server started");
}

void loop() {
  server.handleClient();
}