/* WiFi Web Server LED Blink A simple web server that lets you blink an LED via the web. This sketch will print the IP address of your WiFi Shield (once connected) to the Serial monitor. From there, you can open that address in a web browser to turn on and off the LED on pin 5. If the IP address of your shield is yourAddress: http://yourAddress/H turns the LED on http://yourAddress/L turns it off This example is written for a network using WPA encryption. For WEP or WPA, change the Wifi.begin() call accordingly. Circuit: * WiFi shield attached * LED attached to pin 5 created for arduino 25 Nov 2012 by Tom Igoe ported for sparkfun esp32 31.01.2017 by Jan Hendrik Berlin */ #include const char* ssid = "xxxxxxx"; const char* password = "xxxxxxxx"; WiFiServer server(80); void setup() { Serial.begin(115200); pinMode(13, OUTPUT); // set the LED pin mode delay(10); // We start by connecting to a WiFi network Serial.println(); Serial.println(); Serial.print("Connecting to "); Serial.println(ssid); WiFi.begin(ssid, password); while (WiFi.status() != WL_CONNECTED) { delay(500); Serial.print("."); } Serial.println(""); Serial.println("WiFi connected."); Serial.println("IP address: "); Serial.println(WiFi.localIP()); server.begin(); } int value = 0; void loop(){ WiFiClient client = server.available(); // listen for incoming clients if (client) { // if you get a client, Serial.println("New Client."); // print a message out the serial port String currentLine = ""; // make a String to hold incoming data from the client while (client.connected()) { // loop while the client's connected 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 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(); // the content of the HTTP response follows the header: client.print("Click here to turn the LED on pin 5 on.
"); client.print("Click here to turn the LED on pin 5 off.
"); // 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 } // Check to see if the client request was "GET /H" or "GET /L": if (currentLine.endsWith("GET /H")) { digitalWrite(13, HIGH); // GET /H turns the LED on } if (currentLine.endsWith("GET /L")) { digitalWrite(13, LOW); // GET /L turns the LED off } } } // close the connection: client.stop(); Serial.println("Client Disconnected."); } }