/* WiFiAccessPoint.ino creates a WiFi access point and provides a web server on it. Steps: 1. Connect to the access point "yourAp" 2. Point your web browser to http://192.168.4.1/H to turn the LED on or http://192.168.4.1/L to turn it off OR Run raw TCP "GET /H" and "GET /L" on PuTTY terminal with 192.168.4.1 as IP address and 80 as port Created for arduino-esp32 on 04 July, 2018 by Elochukwu Ifediora (fedy0) */ #include #include #include #define led 17 // Set the GPIO pin where you connected your test LED or comment this line out if your dev board has a built-in LED #define buzzer 16 // Set these to your desired credentials. const char *ssid = "ESP32-APMode"; const char *password = "12345678"; WiFiServer server(80); void setup() { pinMode(buzzer, OUTPUT); pinMode(led, OUTPUT); Serial.begin(115200); Serial.println(); Serial.println("Configuring access point..."); // You can remove the password parameter if you want the AP to be open. WiFi.softAP(ssid, password); IPAddress myIP = WiFi.softAPIP(); Serial.print("AP IP address: "); Serial.println(myIP); server.begin(); Serial.println("Server started"); } 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: // Display the HTML web page 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("

ESP32 Web Server

"); client.print("

Led On

"); client.print("

Led Off

"); client.print("
"); client.print("

Buzzer On

"); client.print("

Buzzer Off

"); 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 } // Check to see if the client request was "GET /H" or "GET /L": if (currentLine.endsWith("GET /H")) { digitalWrite(led, HIGH); // GET /H turns the LED on } if (currentLine.endsWith("GET /L")) { digitalWrite(led, LOW); // GET /L turns the LED off } if (currentLine.endsWith("GET /B")) { digitalWrite(buzzer, HIGH); // GET /L turns the LED off } if (currentLine.endsWith("GET /N")) { digitalWrite(buzzer, LOW); // GET /L turns the LED off } } } // close the connection: client.stop(); Serial.println("Client Disconnected."); } }