Introduction to Wi-Fi Control

Wi-Fi control is a crucial capability for many modern applications, especially those dealing with IoT, smart home devices, and mobile communication. With a comprehensive set of Wi-Fi control APIs, developers can manage Wi-Fi connections programmatically, allowing for enhanced user experiences and smarter applications.

Wi-Fi Control APIs

Below are several useful APIs for Wi-Fi control with examples:

1. Scan for Available Networks

This API scans for available Wi-Fi networks and returns a list of SSIDs.

  
    function scanWiFiNetworks() {
       // Scan for available Wi-Fi networks
       WiFi.scan((error, networks) => {
          if (error) {
             console.error('Error scanning networks:', error);
          } else {
             console.log('Available networks:', networks);
          }
       });
    }
  

2. Connect to a Wi-Fi Network

This API allows the device to connect to a specified Wi-Fi network.

  
    function connectToWiFi(ssid, password) {
       // Connect to the specified Wi-Fi network
       WiFi.connect(ssid, password, error => {
          if (error) {
             console.error('Error connecting to Wi-Fi:', error);
          } else {
             console.log('Connected to Wi-Fi');
          }
       });
    }
  

3. Disconnect from a Wi-Fi Network

This API disconnects the device from the current Wi-Fi network.

  
    function disconnectFromWiFi() {
       // Disconnect from the current Wi-Fi network
       WiFi.disconnect(error => {
          if (error) {
             console.error('Error disconnecting from Wi-Fi:', error);
          } else {
             console.log('Disconnected from Wi-Fi');
          }
       });
    }
  

4. Get Current Wi-Fi Connection Details

This API fetches details of the current Wi-Fi connection such as SSID and signal strength.

  
    function getCurrentWiFiDetails() {
       // Get details of the current Wi-Fi connection
       WiFi.status((error, details) => {
          if (error) {
             console.error('Error fetching Wi-Fi details:', error);
          } else {
             console.log('Current Wi-Fi details:', details);
          }
       });
    }
  

Wi-Fi Control App Example

Here’s an example of a simple Wi-Fi control application built using the APIs discussed above:

  
    class WiFiControllerApp {
       constructor() {
          this.init();
       }

       init() {
          document.getElementById('scanBtn').addEventListener('click', () => this.scanNetworks());
          document.getElementById('connectBtn').addEventListener('click', () => this.connectNetwork());
          document.getElementById('disconnectBtn').addEventListener('click', () => this.disconnectNetwork());
       }

       scanNetworks() {
          WiFi.scan((error, networks) => {
             if (error) {
                alert('Error scanning networks:', error);
             } else {
                console.log('Available networks:', networks);
                // Display networks to user
             }
          });
       }

       connectNetwork() {
          const ssid = document.getElementById('ssidInput').value;
          const password = document.getElementById('passwordInput').value;
          WiFi.connect(ssid, password, error => {
             if (error) {
                alert('Error connecting to Wi-Fi:', error);
             } else {
                alert('Connected to Wi-Fi');
             }
          });
       }

       disconnectNetwork() {
          WiFi.disconnect(error => {
             if (error) {
                alert('Error disconnecting from Wi-Fi:', error);
             } else {
                alert('Disconnected from Wi-Fi');
             }
          });
       }
    }

    // Initialize the app
    new WiFiControllerApp();
  

By following this guide, you should be able to effectively control Wi-Fi connections programmatically within your applications. Try implementing these features in your next project for enhanced connectivity control!

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