/********* Rui Santos Complete project details at http://randomnerdtutorials.com *********/ // Load Wi-Fi library #include // Replace with your network credentials const char* ssid = "Zain Broadband 2.4G"; const char* password = "fabacademy@2020"; int v=0; //int nodeid=1; // Set web server port number to 80 WiFiServer server(80); // Variable to store the HTTP request String header; // Auxiliar variables to store the current output state String output5State = "off"; String output4State = "off"; // Assign output variables to GPIO pins const int output5 = 5; const int output4 = 4; // Current time unsigned long currentTime = millis(); // Previous time unsigned long previousTime = 0; // Define timeout time in milliseconds (example: 2000ms = 2s) const long timeoutTime = 2000; void setup() { //Serial.begin(115200); Serial.begin(9600); // Initialize the output variables as outputs pinMode(LED_BUILTIN, OUTPUT); pinMode(output4, OUTPUT); // Set outputs to LOW digitalWrite(LED_BUILTIN, LOW); digitalWrite(output4, LOW); // Connect to Wi-Fi network with SSID and password //Serial.print("Connecting to "); //Serial.println(ssid); WiFi.begin(ssid, password); while (WiFi.status() != WL_CONNECTED) { delay(500); //Serial.print("."); } // Print local IP address and start web server //Serial.println(""); //Serial.println("WiFi connected."); //Serial.println("IP address: "); //Serial.println(WiFi.localIP()); server.begin(); } void loop(){ WiFiClient client = server.available(); // Listen for incoming clients if (client) { // If a new client connects, //Serial.println("New Client."); // print a message out in the serial port String currentLine = ""; // make a String to hold incoming data from the client currentTime = millis(); previousTime = currentTime; while (client.connected() && currentTime - previousTime <= timeoutTime) { // loop while the client's connected currentTime = millis(); if (client.available()) { // if there's bytes to read from the client, char c = client.read(); // read a byte, then // Serial.write(c); // print it out the serial monitor header += c; if (c == '\n') { // if the byte is a newline character // if the current line is blank, you got two newline characters in a row. // that's the end of the client HTTP request, so send a response: if (currentLine.length() == 0) { // HTTP headers always start with a response code (e.g. HTTP/1.1 200 OK) // and a content-type so the client knows what's coming, then a blank line: client.println("HTTP/1.1 200 OK"); client.println("Content-type:text/html"); client.println("Connection: close"); client.println(); // turns the GPIOs on and off if (header.indexOf("GET /5/on") >= 0) { // Serial.println("GPIO 5 on"); output5State = "on"; digitalWrite(LED_BUILTIN, HIGH); } else if (header.indexOf("GET /5/off") >= 0) { // Serial.println("GPIO 5 off"); output5State = "off"; digitalWrite(LED_BUILTIN, LOW); } else if (header.indexOf("GET /4/on") >= 0) { // Serial.println("GPIO 4 on"); v=1; Serial.write(v); output4State = "on"; // digitalWrite(output4, HIGH); } else if (header.indexOf("GET /4/off") >= 0) { // Serial.println("GPIO 4 off"); v=0; Serial.write(v); output4State = "off"; //digitalWrite(output4, LOW); } // Display the HTML web page client.println(""); client.println(""); client.println(""); // CSS to style the on/off buttons // Feel free to change the background-color and font-size attributes to fit your preferences client.println(""); // Web Page Heading client.println("Page Title"); client.println("

ESP8266 Web Server

"); client.print("

"); // Display current state, and ON/OFF buttons for GPIO 5 client.println("

GPIO 5 - State " + output5State + "

"); // If the output5State is off, it displays the ON button if (output5State=="off") { client.println("

"); } else { client.println("

"); } // Display current state, and ON/OFF buttons for GPIO 4 client.println("

GPIO 4 - State " + output4State + "

"); // If the output4State is off, it displays the ON button if (output4State=="off") { client.println("

"); } else { client.println("

"); } client.println(""); // The HTTP response ends with another blank line client.println(); // Break out of the while loop break; } else { // if you got a newline, then clear currentLine currentLine = ""; } } else if (c != '\r') { // if you got anything else but a carriage return character, currentLine += c; // add it to the end of the currentLine } } } // Clear the header variable header = ""; // Close the connection client.stop(); // Serial.println("Client disconnected."); // Serial.println(""); } }