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michidk/led_webserver.ino

Created October 5, 2025 12:27
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  1. michidk created this gist Oct 5, 2025.
    60 changes: 60 additions & 0 deletions led_webserver.ino
    View file
    Original file line number Diff line number Diff line change
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    #include <WiFi.h>
    #include <WebServer.h>

    #define LED_PIN 2 // Abhaenig vom Board

    WebServer server(80);

    const char* SSID = "WiFi Name";
    const char* PASSWORD = "passwort123";

    void handleRoot() {
    String html =
    "<html><body>"
    "<h1>LED Steuerung</h1>"
    "<p><a href=\"/on\"><button>LED AN</button></a></p>"
    "<p><a href=\"/off\"><button>LED AUS</button></a></p>"
    "</body></html>";
    server.send(200, "text/html", html);
    }

    void handleOn() {
    digitalWrite(LED_PIN, HIGH);
    server.sendHeader("Location", "/");
    server.send(303); // Redirect zurück auf die Startseite
    }

    void handleOff() {
    digitalWrite(LED_PIN, LOW);
    server.sendHeader("Location", "/");
    server.send(303); // Redirect zurück auf die Startseite
    }

    void setup() {
    pinMode(LED_PIN, OUTPUT);
    digitalWrite(LED_PIN, LOW);

    Serial.begin(115200);
    WiFi.mode(WIFI_STA);
    WiFi.begin(SSID, PASSWORD);

    // Warten bis verbunden
    while (WiFi.status() != WL_CONNECTED) {
    delay(250);
    }

    // Routen registrieren
    server.on("/", handleRoot);
    server.on("/on", handleOn);
    server.on("/off", handleOff);

    server.begin();

    // Optional: IP loggen
    Serial.print("IP: ");
    Serial.println(WiFi.localIP());
    }

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