kunsh13
Published © GPL3+

WiFi ESP32 LED Control Project

Control any device using wifi at home

AdvancedFull instructions provided135
WiFi ESP32 LED Control Project

Things used in this project

Hardware components

ESP32 Wroom
×1
Solderless Breadboard Half Size
Solderless Breadboard Half Size
×1
Jumper wires (generic)
Jumper wires (generic)
×1
LED (generic)
LED (generic)
×2
USB-A to Mini-USB Cable
USB-A to Mini-USB Cable
×1

Software apps and online services

Arduino IDE
Arduino IDE

Story

Read more

Code

The code

Arduino
Just copy and paste in Arduino IDE
  /* made by Kusnh13
  For refrence watch YouTube video:-https://youtu.be/Hgq2KX5w-_o   */
  
  #include <WiFi.h>
  
  const char* ssid = "user id"; 
  const char* password = "password"; 
  
  WiFiServer server(80);
  
  String header;
  String output26State = "off";
  String output27State = "off";
  
  const int output26 = 26;
  const int output27 = 27;
  
  void setup() {
  Serial.begin(115200);
  pinMode(output26, OUTPUT);
  digitalWrite(output26, LOW);
  digitalWrite(output27, LOW);
  
  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();
  }
  
  void loop(){
  WiFiClient client = server.available(); 
  if (client) {      
  Serial.println("New Client.");
  String currentLine = "";       
  while (client.connected()) {    
  if (client.available()) {   
  char c = client.read();  
  Serial.write(c);          
  header += c;
  if (c == '\n') {     
  if (currentLine.length() == 0) {
  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 /26/on") >= 0) {
  Serial.println("GPIO 26 on");
  output26State = "on";
  digitalWrite(output26, HIGH);
  } else if (header.indexOf("GET /26/off") >= 0) {
  Serial.println("GPIO 26 off");
  output26State = "off";
  digitalWrite(output26, LOW);
  } else if (header.indexOf("GET /27/on") >= 0) {
  Serial.println("GPIO 27 on");
  output27State = "on";
  digitalWrite(output27, HIGH);
  } else if (header.indexOf("GET /27/off") >= 0) {
  Serial.println("GPIO 27 off");
  output27State = "off";
  digitalWrite(output27, LOW);
  }
   client.println("<!DOCTYPE html><html>");
  client.println("<head><meta name=\"viewport\" content=\"width=device-width, initial-scale=1\">");
  client.println("<style>html { font-family: Helvetica; display: inline-block; margin: 0px auto; text-align: center;}");
  client.println(".button { background-color: #4CAF50; border: none; color: white; padding: 16px 40px;");
  client.println("text-decoration: none; font-size: 30px; margin: 2px; cursor: pointer;}");
  client.println(".button2 {background-color: #555555;}</style></head>");
  
  client.println("<body><h1>ESP32 Web Server</h1>");
  client.println("<p>GPIO 26 - State " + output26State + "</p>");
client.println();
  break;
  } else {   currentLine = "";  }
  } else if (c != '\r') {   currentLine += c;   }
  }
  
  }
  header = "";
  client.stop();
  Serial.println("Client disconnected.");
  Serial.println("");
  }
  }

the code

Arduino
/*********
made by Kusnh13
For refrence watch YouTube video:-https://youtu.be/Hgq2KX5w-_o
*********/

// Load Wi-Fi library


#include <WiFi.h>

// Replace with your network credentials
const char* ssid = "CG4-1102"; 
const char* password = "py79iq0h"; 

// 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 output26State = "off";
String output27State = "off";

// Assign output variables to GPIO pins
const int output26 = 26;
const int output27 = 27;

void setup() {
  Serial.begin(115200);
  // Initialize the output variables as outputs
  pinMode(output26, OUTPUT);
  pinMode(output27, OUTPUT);
  // Set outputs to LOW
  digitalWrite(output26, LOW);
  digitalWrite(output27, 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
    while (client.connected()) {            // loop while the client's connected
      if (client.available()) {             // if there's bytes to read from the  26 - State " + output26State + "</p>");
            // If the output26State is off, it displays the ON button       
            if (output26State=="off") {
              client.println("<p><a href=\"/26/on\"><button class=\"button\">ON</button></a></p>");
            } else {
              client.println("<p><a href=\"/26/off\"><button class=\"button button2\">OFF</button></a></p>");
            } 
               
            // Display current state, and ON/OFF buttons for GPIO 27  
            client.println("<p>GPIO 27 - State " + output27State + "</p>");
            // If the output27State is off, it displays the ON button       
            if (output27State=="off") {
              client.println("<p><a href=\"/27/on\"><button class=\"button\">ON</button></a></p>");
            } else {
              client.println("<p><a href=\"/27/off\"><button class=\"button button2\">OFF</button></a></p>");
            }
            client.println("</body></html>");
            
            // 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("");
  }
}

Untitled file

Arduino
  /* made by Kusnh13
  For refrence watch YouTube video:-https://youtu.be/Hgq2KX5w-_o   */
  
  #include <WiFi.h>
  
  const char* ssid = "user id"; 
  const char* password = "password"; 
  
  WiFiServer server(80);
  
  String header;
  String output26State = "off";
  String output27State = "off";
  
  const int output26 = 26;
  const int output27 = 27;
  
  void setup() {
  Serial.begin(115200);
  pinMode(output26, OUTPUT);
  digitalWrite(output26, LOW);
  digitalWrite(output27, LOW);
  
  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();
  }
  
  void loop(){
  WiFiClient client = server.available(); 
  if (client) {      
  Serial.println("New Client.");
  String currentLine = "";       
  while (client.connected()) {    
  if (client.available()) {   
  char c = client.read();  
  Serial.write(c);          
  header += c;
  if (c == '\n') {     
  if (currentLine.length() == 0) {
  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 /26/on") >= 0) {
  Serial.println("GPIO 26 on");
  output26State = "on";
  digitalWrite(output26, HIGH);
  } else if (header.indexOf("GET /26/off") >= 0) {
  Serial.println("GPIO 26 off");
  output26State = "off";
  digitalWrite(output26, LOW);
  } else if (header.indexOf("GET /27/on") >= 0) {
  Serial.println("GPIO 27 on");
  output27State = "on";
  digitalWrite(output27, HIGH);
  } else if (header.indexOf("GET /27/off") >= 0) {
  Serial.println("GPIO 27 off");
  output27State = "off";
  digitalWrite(output27, LOW);
  }
   client.println("<!DOCTYPE html><html>");
  client.println("<head><meta name=\"viewport\" content=\"width=device-width, initial-scale=1\">");
  client.println("<style>html { font-family: Helvetica; display: inline-block; margin: 0px auto; text-align: center;}");
  client.println(".button { background-color: #4CAF50; border: none; color: white; padding: 16px 40px;");
  client.println("text-decoration: none; font-size: 30px; margin: 2px; cursor: pointer;}");
  client.println(".button2 {background-color: #555555;}</style></head>");
  
  client.println("<body><h1>ESP32 Web Server</h1>");
  client.println("<p>GPIO 26 - State " + output26State + "</p>");
  
  
  
  
 
  
  client.println();
  break;
  } else {   currentLine = "";  }
  } else if (c != '\r') {   currentLine += c;   }
  }
  
  }
  header = "";
  client.stop();
  Serial.println("Client disconnected.");
  Serial.println("");
  }
  }

The Code

Arduino
Just upload it
  /* made by Kusnh13
  For refrence watch YouTube video:-https://youtu.be/Hgq2KX5w-_o   */
  
  #include <WiFi.h>
  
  const char* ssid = "user id"; 
  const char* password = "password"; 
  
  WiFiServer server(80);
  
  String header;
  String output26State = "off";
  String output27State = "off";
  
  const int output26 = 26;
  const int output27 = 27;
  
  void setup() {
  Serial.begin(115200);
  pinMode(output26, OUTPUT);
  digitalWrite(output26, LOW);
  digitalWrite(output27, LOW);
  
  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();
  }
  
  void loop(){
  WiFiClient client = server.available(); 
  if (client) {      
  Serial.println("New Client.");
  String currentLine = "";       
  while (client.connected()) {    
  if (client.available()) {   
  char c = client.read();  
  Serial.write(c);          
  header += c;
  if (c == '\n') {     
  if (currentLine.length() == 0) {
  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 /26/on") >= 0) {
  Serial.println("GPIO 26 on");
  output26State = "on";
  digitalWrite(output26, HIGH);
  } else if (header.indexOf("GET /26/off") >= 0) {
  Serial.println("GPIO 26 off");
  output26State = "off";
  digitalWrite(output26, LOW);
  } else if (header.indexOf("GET /27/on") >= 0) {
  Serial.println("GPIO 27 on");
  output27State = "on";
  digitalWrite(output27, HIGH);
  } else if (header.indexOf("GET /27/off") >= 0) {
  Serial.println("GPIO 27 off");
  output27State = "off";
  digitalWrite(output27, LOW);
  }
   client.println("<!DOCTYPE html><html>");
  client.println("<head><meta name=\"viewport\" content=\"width=device-width, initial-scale=1\">");
  client.println("<style>html { font-family: Helvetica; display: inline-block; margin: 0px auto; text-align: center;}");
  client.println(".button { background-color: #4CAF50; border: none; color: white; padding: 16px 40px;");
  client.println("text-decoration: none; font-size: 30px; margin: 2px; cursor: pointer;}");
  client.println(".button2 {background-color: #555555;}</style></head>");
  
  client.println("<body><h1>ESP32 Web Server</h1>");
  client.println("<p>GPIO 26 - State " + output26State + "</p>");
  
  
  
  
 
  
  client.println();
  break;
  } else {   currentLine = "";  }
  } else if (c != '\r') {   currentLine += c;   }
  }
  
  }
  header = "";
  client.stop();
  Serial.println("Client disconnected.");
  Serial.println("");
  }
  }

Credits

kunsh13

kunsh13

1 project • 0 followers

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