ESP Web Server

/********* Rui Santos Complete project details at https://RandomNerdTutorials.com/esp32-async-web-server-espasyncwebserver-library/ The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. *********/ // Import required libraries #include #include #include // Replace with your network credentials const char* ssid = "ESP_ping"; const char* password = "pong"; const char* PARAM_INPUT_1 = "output"; const char* PARAM_INPUT_2 = "state"; // Create AsyncWebServer object on port 80 AsyncWebServer server(80); const char index_html[] PROGMEM = R"rawliteral( ESP Web Server

ESP Web Server

%BUTTONPLACEHOLDER% )rawliteral"; // Replaces placeholder with button section in your web page String processor(const String& var){ //Serial.println(var); if(var == "BUTTONPLACEHOLDER"){ String buttons = ""; buttons += "

"; buttons += "

"; return buttons; } return String(); } void setup(){ // Serial port for debugging purposes Serial.begin(115200); Serial.print("Setting AP (Access Point)…"); WiFi.softAP(ssid); IPAddress IP = WiFi.softAPIP(); Serial.print("AP IP address: "); Serial.println(IP); // Route for root / web page server.on("/", HTTP_GET, [](AsyncWebServerRequest *request){ request->send_P(200, "text/html", index_html, processor); }); // Send a GET request to /update?output=&state= server.on("/update", HTTP_GET, [] (AsyncWebServerRequest *request) { String inputMessage1; String inputMessage2; // GET input1 value on /update?output=&state= if (request->hasParam(PARAM_INPUT_1) && request->hasParam(PARAM_INPUT_2)) { inputMessage1 = request->getParam(PARAM_INPUT_1)->value(); inputMessage2 = request->getParam(PARAM_INPUT_2)->value(); int requestedValue = inputMessage2.toInt(); } else { inputMessage1 = "No message sent"; inputMessage2 = "No message sent"; } Serial.print("GPIO: "); Serial.print(inputMessage1); Serial.print(" - Set to: "); Serial.println(inputMessage2); request->send(200, "text/plain", "OK"); }); // Start server server.begin(); } void loop() { }