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Web+Interface

Web+Interface: Building a Web-Based Control Interface using Arduino

Introduction: The Web+Interface project aims to create a web-based control interface using Arduino. This article will provide a step-by-step guide on how to build the project, including a detailed description of the components used and example codes with detailed explanations.

Project: The project involves creating a web-based control interface that allows users to remotely control electronic devices connected to an Arduino board. The objectives of the project are to enable remote control, monitor device status, and provide a user-friendly interface for interaction. The interface will be accessible through a web browser on any device connected to the same network as the Arduino.

List of Components: To build the Web+Interface project, the following components are required:

  1. Arduino Uno board - 1x [Link: example.com/arduino-uno]

  2. Ethernet Shield - 1x [Link: example.com/ethernet-shield]

  3. Breadboard - 1x [Link: example.com/breadboard]

  4. Jumper wires - as required [Link: example.com/jumper-wires]

  5. LED - 1x [Link: example.com/led]

  6. Resistors (220 ohms) - 1x [Link: example.com/resistors]

  7. Push button - 1x [Link: example.com/push-button]

  8. Potentiometer - 1x [Link: example.com/potentiometer]

Examples: Below are example codes for the Web+Interface project, along with detailed comments explaining each line:

  1. HTML/CSS Template:

    • This code provides a basic structure for the web interface, including buttons and status indicators. 
      <html>
<head>
<style>
   /* CSS styles for the interface */
</style>
</head>
<body>
<h1>Web+Interface Control</h1>
<button id="onButton">Turn On</button>
<button id="offButton">Turn Off</button>
<p id="status">Status: </p>
</body>
</html>

  2. JavaScript Code:

    • This code establishes a connection with the Arduino and sends commands based on button clicks. 
      
// Establish a WebSocket connection with the Arduino
var socket = new WebSocket("ws://arduino-ip-address");

    // Function to send commands to the Arduino function sendCommand(command) { socket.send(command); }

    // Event listeners for button clicks document.getElementById("onButton").addEventListener("click", function() { sendCommand("ON"); });

    document.getElementById("offButton").addEventListener("click", function() { sendCommand("OFF"); });

    // Function to update the status indicator function updateStatus(status) { document.getElementById("status").innerHTML = "Status: " + status; }

    // Event listener for receiving status updates from the Arduino socket.onmessage = function(event) { updateStatus(event.data); };

  3. Arduino Code:

    • This code listens for commands from the web interface and performs corresponding actions. 
      
#include <Ethernet.h>

    // Ethernet shield MAC address byte mac[] = {0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED};

    // Web server port EthernetServer server(80);

    void setup() { // Initialize Ethernet and web server Ethernet.begin(mac); server.begin();

    // Set pin modes for LED and push button pinMode(LED_PIN, OUTPUT); pinMode(BUTTON_PIN, INPUT_PULLUP); }

    void loop() { // Listen for incoming client connections EthernetClient client = server.available(); if (client) { // Read the HTTP request // Process the command and send response }

    // Check if the push button is pressed if (digitalRead(BUTTON_PIN) == LOW) { // Perform actions based on the button press } }

To share Download PDF

Arduino Web Interface Ethernet Shield Remote Control User Interface Internet of Things

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