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Soft AP sample (#23)
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‎README.md

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<tr>
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<td><a href="samples/HardwareEsp32">Hardware Esp32 Test</a></td>
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<td><a href="samples/Wifi">WiFi</a></td>
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<td><a href="samples/WifiAP">WiFi Soft AP</a></td>
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<td><!--<a href="Utility/util3">Utility Three</a>--></td>
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</tr>
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</table>

‎README.zh-cn.md

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<tr>
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<td><a href="samples/HardwareEsp32">Esp32 硬件</a></td>
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<td><a href="samples/Wifi">WiFi</a></td>
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<td><a href="samples/WifiAP">WiFi Soft AP</a></td>
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<td><!--<a href="Utility/util3">Utility Three</a>--></td>
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</tr>
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</table>

‎samples/WiFiAP/Program.cs

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using System;
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using System.Threading;
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using System.Net.NetworkInformation;
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using nanoFramework.Runtime.Native;
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using Windows.Devices.Gpio;
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namespace WiFiAP
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{
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public class Program
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{
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// Start Simple WebServer
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static WebServer server = new WebServer();
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// Connected Station count
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static int connectedCount = 0;
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// Gpio pin used to put device into AP setup mode
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const int SETUP_PIN = 5;
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public static void Main()
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{
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Console.WriteLine("Welcome to WiFI Soft AP world!");
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GpioPin setupButton = GpioController.GetDefault().OpenPin(SETUP_PIN);
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setupButton.SetDriveMode(GpioPinDriveMode.InputPullUp);
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// If Wireless station is not enabled then start Soft AP to allow Wireless configuration
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// or Button pressed
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if (!Wireless80211.IsEnabled() || (setupButton.Read() == GpioPinValue.Low))
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{
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Wireless80211.Disable();
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if (WirelessAP.Setup() == false)
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{
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// Reboot device to Activate Access Point on restart
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Console.WriteLine($"Setup Soft AP, Rebooting device");
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Power.RebootDevice();
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}
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Console.WriteLine($"Running Soft AP, waiting for client to connect");
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Console.WriteLine($"Soft AP IP address :{WirelessAP.GetIP()}");
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// Link up Network event to show Stations connecting/disconnecting to Access point.
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NetworkChange.NetworkAPStationChanged += NetworkChange_NetworkAPStationChanged; ;
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}
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else
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{
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Console.WriteLine($"Running in normal mode, connecting to Access point");
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string IpAdr = Wireless80211.WaitIP();
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Console.WriteLine($"Connected as {IpAdr}");
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}
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// Just wait
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Thread.Sleep(Timeout.Infinite);
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}
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/// <summary>
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/// Event handler for Stations connecting or Disconnecting
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/// </summary>
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/// <param name="NetworkIndex">The index of Network Interface raising event</param>
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/// <param name="e">Event argument</param>
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private static void NetworkChange_NetworkAPStationChanged(int NetworkIndex, NetworkAPStationEventArgs e)
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{
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Console.WriteLine($"NetworkAPStationChanged event Index:{NetworkIndex} Connected:{e.IsConnected} Station:{e.StationIndex} ");
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// if connected then get information on the connecting station
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if (e.IsConnected)
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{
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WirelessAPConfiguration wapconf = WirelessAPConfiguration.GetAllWirelessAPConfigurations()[0];
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WirelessAPStation station = wapconf.GetConnectedStations(e.StationIndex);
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string macString = BitConverter.ToString(station.MacAddres);
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Console.WriteLine($"Station mac {macString} Rssi:{station.Rssi} PhyMode:{station.PhyModes} ");
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connectedCount++;
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// Start web server when it connects otherwise the bind to network will fail as
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// no connected network. Start web server when first station connects
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if (connectedCount == 1)
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{
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// Wait for Staion to be fully connected before starting web server
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// other you will get a Network error
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Thread.Sleep(2000);
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server.Start();
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}
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}
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else
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{
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// Station disconnected. When no more station connected then stop webserver
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if (connectedCount > 0)
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{
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connectedCount--;
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if (connectedCount == 0)
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server.Stop();
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}
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}
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}
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}
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}

‎samples/WiFiAP/Properties/AssemblyInfo.cs

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using System.Reflection;
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using System.Runtime.CompilerServices;
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using System.Runtime.InteropServices;
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// General Information about an assembly is controlled through the following
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// set of attributes. Change these attribute values to modify the information
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// associated with an assembly.
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[assembly: AssemblyTitle("Soft AP sample ")]
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[assembly: AssemblyDescription("")]
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[assembly: AssemblyConfiguration("")]
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[assembly: AssemblyCompany("")]
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[assembly: AssemblyProduct("nanoFramework")]
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[assembly: AssemblyCopyright("Copyright ©2019 nanoFramework ")]
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[assembly: AssemblyTrademark("")]
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[assembly: AssemblyCulture("")]
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// Setting ComVisible to false makes the types in this assembly not visible
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// to COM components. If you need to access a type in this assembly from
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// COM, set the ComVisible attribute to true on that type.
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[assembly: ComVisible(false)]
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// Version information for an assembly consists of the following four values:
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//
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// Major Version
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// Minor Version
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// Build Number
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// Revision
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//
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// You can specify all the values or you can default the Build and Revision Numbers
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// by using the '*' as shown below:
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// [assembly: AssemblyVersion("1.0.*")]
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[assembly: AssemblyVersion("1.0.0.0")]
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[assembly: AssemblyFileVersion("1.0.0.0")]

‎samples/WiFiAP/README.md

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# WiFi Soft AP sample
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Shows how to use various APIs related with WiFi Soft AP.
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### Starts a Soft AP (Hot spot) and runs a simple web server to configure the Wireless connection parameters.
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The sample uses GPIO pin 5 to switch back into the SoftAP configuration mode. When pulled to ground on boot will switch into Soft AP mode.
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You can connect to the web server via the url http://192.168.4.1/
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Once you save the wireless configuration the next boot the device will automatically connect to that Access Point
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and the Soft AP will be disabled.
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> **Note:** This sample is part of a large collection of nanoFramework feature samples.
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> If you are unfamiliar with Git and GitHub, you can download the entire collection as a
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> [ZIP file](https://github.com/nanoframework/Samples/archive/master.zip), but be
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> sure to unzip everything to access any shared dependencies.
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<!-- For more info on working with the ZIP file,
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> the samples collection, and GitHub, see [Get the UWP samples from GitHub](https://aka.ms/ovu2uq).
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> For more samples, see the [Samples portal](https://aka.ms/winsamples) on the Windows Dev Center. -->
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## Hardware requirements
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An hardware device with WiFi networking capabilities running a nanoFramework image.
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Currently only the Esp32.
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## Related topics
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### Reference
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- [SYstem.Net.NetworkInformation](http://docs.nanoframework.net/api/System.Net.NetworkInformation.html)
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## Build the sample
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1. If you download the samples ZIP, be sure to unzip the entire archive, not just the folder with the sample you want to build.
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2. Start Microsoft Visual Studio 2017 and select **File** \> **Open** \> **Project/Solution**.
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3. Starting in the folder where you unzipped the samples, go to the subfolder for this specific sample. Double-click the Visual Studio Solution (.sln) file.
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4. Press Ctrl+Shift+B, or select **Build** \> **Build Solution**.
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## Run the sample
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The next steps depend on whether you just want to deploy the sample or you want to both deploy and run it.
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### Deploying the sample
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- Select Build > Deploy Solution.
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### Deploying and running the sample
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- To debug the sample and then run it, press F5 or select Debug > Start Debugging.

‎samples/WiFiAP/Resources.Designer.cs

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‎samples/WiFiAP/Resources.resx

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<data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
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<value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
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<comment>This is a comment</comment>
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‎samples/WiFiAP/Resources/Html/main.html

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<!DOCTYPE html>
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<html>
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<body>
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<h1>NanoFramework</h1>
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<form method='POST'>
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<fieldset><legend>Wireless configuration</legend>
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Ssid:<br><input type="text" name="ssid" value=""><br>
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Password:<br><input type="text" name="password" value=""><br>
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<br>
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<input type="submit" value="Save">
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</fieldset>
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<b>{message}</b>
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</form>
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</body>
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</html>

‎samples/WiFiAP/Resources/Images/favicon.png

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