Código para treinamento sobre bibliotecas e utilização delas

webserver-toggle-led.ino

#include <Led.h>
#include <WebServer.h>
#include <WiFiManager.h> // https://github.com/tzapu/WiFiManager

Led led(2);
WebServer webServer(80);

void setupWifi() {
  WiFi.mode(WIFI_STA);
  WiFiManager wifiManager;

  // Apaga os dados salvos da última rede wifi conectada
  // wifiManager.resetSettings();

  bool successConnection;
  successConnection = wifiManager.autoConnect("Treinamento", "password");
  if (successConnection == false) {
    Serial.println("Failed to connect. Restarting ESP");
    ESP.restart();
    return;
  }

  Serial.print("WiFi Connected. IP address: ");
  Serial.println(WiFi.localIP());
}

void handleToogle() {
  led.toggle();
  webServer.send(200, "text/plain", "Led toggle OK!");
}

void setup() {
  Serial.begin(19200);

  setupWifi();

  webServer.on("/toggle", handleToogle);
  webServer.begin();
}

void loop() {
  webServer.handleClient();
  delay(10);
}