Wokwi - Online ESP32, STM32, Arduino Simulator

#include <WiFi.h>
#include <WebServer.h>

LiquidCrystal_I2C lcd(0x27, 16, 2);

const char* ap_ssid = "jorgenerico";
const char* ap_password = "12345678";
WebServer server(80);

void setup_wifi() {
  // Configurar ponto de acesso
  WiFi.softAP(ap_ssid, ap_password);
  Serial.print("Ponto de acesso IP: ");
  Serial.println(WiFi.softAPIP());
 
  // Mostrar IP no LCD
  lcd.setCursor(0, 0);
  lcd.print(WiFi.softAPIP());
}

void handleRoot() {
  server.send(200, "text/html", getHtml());
}

void handleOn() {
  digitalWrite(2, HIGH);  // Liga o LED no pino 2
  server.send(200, "text/html", getHtml());
}

void handleOff() {
  digitalWrite(2, LOW);   // Desliga o LED no pino 2
  server.send(200, "text/html", getHtml());
}

String getHtml() {
  String html = "<html><head><title>Controle do LED</title></head><body>";
  html += "<h1>Controle o LED</h1>";
  html += "<p><a href=\"/on\">Ligar LED</a></p>";     // Link para ligar o LED
  html += "<p><a href=\"/off\">Desligar LED</a></p>";  // Link para desligar o LED
  html += "</body></html>";

  return html;
}

void setup() {
  pinMode(2, OUTPUT);  // Define o pino 2 como saída
  Serial.begin(115200);
  lcd.init();
  lcd.backlight();
 
  setup_wifi();  // Configura o ponto de acesso Wi-Fi
 
  // Define as rotas para o servidor web
  server.on("/", handleRoot);
  server.on("/on", handleOn);
  server.on("/off", handleOff);

  // Inicia o servidor
  server.begin();
}

void loop() {
  server.handleClient();  // Mantém o servidor ativo
}