#include #include #include // Include the Wi-Fi-Multi library #include // Include the WebServer library #include // Include the mDNS library ESP8266WiFiMulti wifiMulti; // Create an instance of the server ESP8266WebServer server(80); const int led = D2; void handleRoot(); void handleLED(); void handleNotFound(); void setup() { Serial.begin(115200); delay(10); pinMode(led, OUTPUT); digitalWrite(led,1); // Connect to WiFi network Serial.println(); wifiMulti.addAP("", ""); // add Wi-Fi networks you want to connect to // You can add several of the above lines to enable multi-Ap scenarios Serial.println(); Serial.print("Connecting ..."); //WiFi.begin(ssid, password); while (wifiMulti.run() != WL_CONNECTED) { delay(500); Serial.print("."); } Serial.println(""); Serial.println("WiFi connected to "); Serial.println(WiFi.SSID()); Serial.println("IP address: "); Serial.println(WiFi.localIP()); if (MDNS.begin("iot")) { // Start the mDNS responder for esp8266.local Serial.println("mDNS responder started"); } else { Serial.println("Error setting up MDNS responder!"); } server.on("/", HTTP_GET, handleRoot); server.on("/LED", HTTP_POST, handleLED); server.onNotFound(handleNotFound); // Start the server server.begin(); Serial.println("Server started"); } void loop() { // Check if a client has connected server.handleClient(); } void handleRoot() { // When URI / is requested, send a web page with a button to toggle the LED server.send(200, "text/html", "Internet of Things - Demonstration\

Velkommen til denne WebServer

Internet of Things (IoT) er \"tingenes Internet\" - dagligdags ting kommer på nettet og får ny værdi. Det kan løse mange udfordringer.

Her kommunikerer du med en webserver på en lille microcontroller af typen Arduino, som i dette tilfælde styrer en digital udgang, som du så igen kan bruge til at styre en lampe, en ventilator, tænde for varmen eller hvad du lyster

Klik nedenstående knap for at tænde eller slukke LED port D2

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Med en Arduino ESP8266 kan du lave et hav a sjove projekter

\ "); } void handleLED() { // If a POST request is made to URI /LED digitalWrite(led,!digitalRead(led)); // Change the state of the LED server.sendHeader("Location","/"); // Add a header to respond with a new location for the browser to go to the home page again server.send(303); // Send it back to the browser with an HTTP status 303 (See Other) to redirect } void handleNotFound(){ server.send(404, "text/plain", "404: Not found"); // Send HTTP status 404 (Not Found) when there's no handler for the URI in the request }