How Is Host the Web Server Using Arduino?


Angela Bailey

Hosting a web server using Arduino can be a fun and exciting project for both beginners and experienced enthusiasts. With just a few components and some basic knowledge of HTML, you can create your own web server using the power of Arduino.

What is Arduino?

Arduino is an open-source electronics platform that allows you to create interactive projects by combining hardware and software. It consists of a microcontroller board and a development environment, making it easy to program and control various electronic components.

Setting up the Hardware

Before diving into the coding part, let’s start by setting up the necessary hardware components. You will need an Arduino board, an Ethernet shield, an SD card module (optional), and some jumper wires.

Connect the Ethernet shield to your Arduino board, making sure to align the pins correctly. If you’re using an SD card module, connect it to the Ethernet shield as well.

Configuring the Software

Once your hardware is set up, it’s time to configure the software side of things. Start by installing the required libraries for Ethernet and SD card support in your Arduino IDE. You can do this by navigating to Sketch -> Include Library -> Manage Libraries in the IDE menu.

Writing the Code

Now that everything is set up, let’s write some code! Open your Arduino IDE and create a new sketch. Begin by including the necessary libraries at the top of your code:

#include <SPI.h>
#include <Ethernet.h>

Next, define some variables for IP addresses and ports:

byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
IPAddress ip(192 ,168 ,1 ,177);
EthernetServer server(80);

In the setup() function, initialize the Ethernet library and start the server:

void setup() {
  Ethernet.begin(mac, ip);

Inside the loop() function, listen for incoming client requests and handle them accordingly:

void loop() {
  EthernetClient client = server.available();
  if (client) {
    Serial.println(“New Client Connected”);
    // Handle client request here

Serving Web Pages

To serve web pages to clients, you can use HTML code embedded within your Arduino sketch. Here’s an example of how you can send a simple HTML page as a response to a client request:

void handleClientRequest(EthernetClient client) {
  // Send HTTP headers to the client
  client.println(“HTTP/1.1 200 OK”);

  client.println(“Content-Type: text/html”);


Hello from Arduino Web Server!


In this example, we send back a simple HTML page that contains an unordered list with a single list item saying “Hello from Arduino Web Server!”.


Hosting a web server using Arduino is an excellent way to learn about both hardware and software integration. With just a few lines of code and some basic components, you can create your own web server that serves HTML pages to connected clients. So grab your Arduino board, set up the necessary hardware, write the code, and start hosting your own web server today!