To control (LED) ON/OFF using (WiFi Module EPS 8266)

   

Code:

 

#include <ESP8266WiFi.h>

const char* ssid = “اكتب اسم الواي فاي “; // Replace with your WiFi SSID
const char* password = “كلمة السر “; // Replace with your WiFi password

// GPIO pin for the LED
const int ledPin = 2; // GPIO2 on ESP8266                                                code in>>>>> osief.com

WiFiServer server(80);

//  ▄▄▄▄▄▄▄▄▄   ▄▄▄▄▄▄▄▄▄▄▄  ▄▄▄▄▄▄▄▄▄▄▄  ▄▄▄▄▄▄▄▄▄▄▄  ▄▄▄▄▄▄▄▄▄▄▄  ▄▄▄▄▄▄▄▄▄▄▄  ▄▄▄▄▄▄▄▄▄▄▄  ▄▄       ▄▄ 
// ▐░░░░░░░░░▌ ▐░░░░░░░░░░░▌▐░░░░░░░░░░░▌▐░░░░░░░░░░░▌▐░░░░░░░░░░░▌▐░░░░░░░░░░░▌▐░░░░░░░░░░░▌▐░░▌     ▐░░▌
//▐░█░█▀▀▀▀▀█░▌▐░█▀▀▀▀▀▀▀▀▀  ▀▀▀▀█░█▀▀▀▀ ▐░█▀▀▀▀▀▀▀▀▀ ▐░█▀▀▀▀▀▀▀▀▀ ▐░█▀▀▀▀▀▀▀▀▀ ▐░█▀▀▀▀▀▀▀█░▌▐░▌░▌   ▐░▐░▌
//▐░▌▐░▌    ▐░▌▐░▌               ▐░▌     ▐░▌          ▐░▌          ▐░▌          ▐░▌       ▐░▌▐░▌▐░▌ ▐░▌▐░▌
//▐░▌ ▐░▌   ▐░▌▐░█▄▄▄▄▄▄▄▄▄      ▐░▌     ▐░█▄▄▄▄▄▄▄▄▄ ▐░█▄▄▄▄▄▄▄▄▄ ▐░▌          ▐░▌       ▐░▌▐░▌ ▐░▐░▌ ▐░▌
//▐░▌  ▐░▌  ▐░▌▐░░░░░░░░░░░▌     ▐░▌     ▐░░░░░░░░░░░▌▐░░░░░░░░░░░▌▐░▌          ▐░▌       ▐░▌▐░▌  ▐░▌  ▐░▌
//▐░▌   ▐░▌ ▐░▌ ▀▀▀▀▀▀▀▀▀█░▌     ▐░▌     ▐░█▀▀▀▀▀▀▀▀▀ ▐░█▀▀▀▀▀▀▀▀▀ ▐░▌          ▐░▌       ▐░▌▐░▌   ▀   ▐░▌
//▐░▌    ▐░▌▐░▌          ▐░▌     ▐░▌     ▐░▌          ▐░▌          ▐░▌          ▐░▌       ▐░▌▐░▌       ▐░▌
//▐░█▄▄▄▄▄█░█░▌ ▄▄▄▄▄▄▄▄▄█░▌ ▄▄▄▄█░█▄▄▄▄ ▐░█▄▄▄▄▄▄▄▄▄ ▐░▌ ▄        ▐░█▄▄▄▄▄▄▄▄▄ ▐░█▄▄▄▄▄▄▄█░▌▐░▌       ▐░▌
// ▐░░░░░░░░░▌ ▐░░░░░░░░░░░▌▐░░░░░░░░░░░▌▐░░░░░░░░░░░▌▐░▌▐░▌       ▐░░░░░░░░░░░▌▐░░░░░░░░░░░▌▐░▌       ▐░▌
//  ▀▀▀▀▀▀▀▀▀   ▀▀▀▀▀▀▀▀▀▀▀  ▀▀▀▀▀▀▀▀▀▀▀  ▀▀▀▀▀▀▀▀▀▀▀  ▀  ▀         ▀▀▀▀▀▀▀▀▀▀▀  ▀▀▀▀▀▀▀▀▀▀▀  ▀         ▀
 
 

void setup() {
Serial.begin(115200);

// Set the LED pin as an output
pinMode(ledPin, OUTPUT);
digitalWrite(ledPin, LOW);

// Connect to Wi-Fi
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(1000);
Serial.println(“Connecting to WiFi…”);
}
Serial.println(“Connected to WiFi”);

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// Print the ESP8266’s IP address
Serial.print(“Local IP address: “);
Serial.println(WiFi.localIP());

// Initialize the server
server.begin();
}

// ██████  ███████ ██ ███████ ███████     ██████  ██████  ███    ███ 
//██  ████ ██      ██ ██      ██         ██      ██    ██ ████  ████ 
//██ ██ ██ ███████ ██ █████   █████      ██      ██    ██ ██ ████ ██ 
//████  ██      ██ ██ ██      ██         ██      ██    ██ ██  ██  ██ 
// ██████  ███████ ██ ███████ ██      ██  ██████  ██████  ██      ██

void loop() {
WiFiClient client = server.available();
if (!client) {
return;
}

// Wait for the client to send a request
while (!client.available()) {
delay(1);
}

// osief.com
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// Read the first line of the request
String request = client.readStringUntil(‘\r’);
client.flush();

// Check for “GET /LED=ON” in the request
if (request.indexOf(“GET /LED=ON”) != -1) {
digitalWrite(ledPin, HIGH); // Turn on the LED
client.println(“HTTP/1.1 200 OK”);
client.println(“Content-Type: text/html”);
client.println();
client.println(“<html><body>”);
client.println(“<h1>LED is ON</h1>”);
client.println(“</body></html>”);
}

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// Check for “GET /LED=OFF” in the request
else if (request.indexOf(“GET /LED=OFF”) != -1) {
digitalWrite(ledPin, LOW); // Turn off the LED
client.println(“HTTP/1.1 200 OK”);
client.println(“Content-Type: text/html”);
client.println();
client.println(“<html><body>”);
client.println(“<h1>LED is OFF</h1>”);
client.println(“</body></html>”);
}
// Invalid URL
else {
client.println(“HTTP/1.1 404 Not Found”);
client.println(“Content-Type: text/html”);
client.println();
client.println(“<html><body>”);
client.println(“<h1>Page not found</h1>”);
client.println(“</body></html>”);
}

delay(1);
client.stop();
}

 

// ██████╗ ███████╗██╗███████╗███████╗    ██████╗ ██████╗ ███╗   ███╗
//██╔═████╗██╔════╝██║██╔════╝██╔════╝   ██╔════╝██╔═══██╗████╗ ████║
//██║██╔██║███████╗██║█████╗  █████╗     ██║     ██║   ██║██╔████╔██║
//████╔╝██║╚════██║██║██╔══╝  ██╔══╝     ██║     ██║   ██║██║╚██╔╝██║
//╚██████╔╝███████║██║███████╗██║  ██╗   ╚██████╗╚██████╔╝██║ ╚═╝ ██║
// ╚═════╝ ╚══════╝╚═╝╚══════╝╚═╝  ╚═╝   ╚═════╝ ╚═════╝ ╚═╝      ╚═╝

 

 

The pinout of a common ESP8266 WiFi module, such as the ESP-01, can vary slightly between different versions and manufacturers. Below is a typical pinout for the ESP-01 module:

  1. VCC (3.3V): This is the power supply pin for the ESP8266 module. It requires a stable 3.3V power source. Do not connect it to 5V as it can damage the module.
  2. GND (Ground): This is the ground or common reference voltage.
  3. TX (Transmit): This pin is used for serial data transmission from the ESP8266 to an external device like an Arduino. It sends data from the module to another device.
  4. RX (Receive): This pin is used for serial data reception by the ESP8266 from an external device. It receives data from another device.
  5. GPIO0 (General-Purpose Input/Output 0): This pin can be used for general-purpose digital input/output operations. It is often used during the flashing of firmware, so its state during boot-up can affect the module’s behavior.
  6. GPIO2 (General-Purpose Input/Output 2): Similar to GPIO0, this pin can also be used for general-purpose digital input/output operations. It’s commonly used for connecting external components like LEDs or sensors.
  7. CH_PD (Chip Enable): This is the chip enable pin, which is used to enable the ESP8266 module.
  8. RST (Reset): This is the reset pin used to reset the module.

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