diff --git a/USB_Relay_Control.sln b/USB_Relay_Control.sln
new file mode 100644
index 0000000..c491c35
--- /dev/null
+++ b/USB_Relay_Control.sln
@@ -0,0 +1,28 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 2013
+VisualStudioVersion = 12.0.31101.0
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "USB_Relay_Control", "USB_Relay_Control\USB_Relay_Control.csproj", "{42149B00-ABEA-4E10-9591-D4E6774C7860}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Debug|x86 = Debug|x86
+		Release|Any CPU = Release|Any CPU
+		Release|x86 = Release|x86
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{42149B00-ABEA-4E10-9591-D4E6774C7860}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{42149B00-ABEA-4E10-9591-D4E6774C7860}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{42149B00-ABEA-4E10-9591-D4E6774C7860}.Debug|x86.ActiveCfg = Debug|x86
+		{42149B00-ABEA-4E10-9591-D4E6774C7860}.Debug|x86.Build.0 = Debug|x86
+		{42149B00-ABEA-4E10-9591-D4E6774C7860}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{42149B00-ABEA-4E10-9591-D4E6774C7860}.Release|Any CPU.Build.0 = Release|Any CPU
+		{42149B00-ABEA-4E10-9591-D4E6774C7860}.Release|x86.ActiveCfg = Release|x86
+		{42149B00-ABEA-4E10-9591-D4E6774C7860}.Release|x86.Build.0 = Release|x86
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+EndGlobal
diff --git a/USB_Relay_Control/App.config b/USB_Relay_Control/App.config
new file mode 100644
index 0000000..8e15646
--- /dev/null
+++ b/USB_Relay_Control/App.config
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<configuration>
+    <startup> 
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5" />
+    </startup>
+</configuration>
\ No newline at end of file
diff --git a/USB_Relay_Control/Form1.Designer.cs b/USB_Relay_Control/Form1.Designer.cs
new file mode 100644
index 0000000..337d559
--- /dev/null
+++ b/USB_Relay_Control/Form1.Designer.cs
@@ -0,0 +1,190 @@
+namespace USB_Relay_Control
+{
+    partial class Form1
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            this.listBox1 = new System.Windows.Forms.ListBox();
+            this.label2 = new System.Windows.Forms.Label();
+            this.button1 = new System.Windows.Forms.Button();
+            this.button2 = new System.Windows.Forms.Button();
+            this.button3 = new System.Windows.Forms.Button();
+            this.button4 = new System.Windows.Forms.Button();
+            this.button5 = new System.Windows.Forms.Button();
+            this.button6 = new System.Windows.Forms.Button();
+            this.button7 = new System.Windows.Forms.Button();
+            this.button8 = new System.Windows.Forms.Button();
+            this.SuspendLayout();
+            // 
+            // listBox1
+            // 
+            this.listBox1.FormattingEnabled = true;
+            this.listBox1.Location = new System.Drawing.Point(14, 25);
+            this.listBox1.Name = "listBox1";
+            this.listBox1.Size = new System.Drawing.Size(169, 95);
+            this.listBox1.TabIndex = 1;
+            this.listBox1.SelectedIndexChanged += new System.EventHandler(this.listBox1_SelectedIndexChanged);
+            // 
+            // label2
+            // 
+            this.label2.AutoSize = true;
+            this.label2.Location = new System.Drawing.Point(12, 9);
+            this.label2.Name = "label2";
+            this.label2.Size = new System.Drawing.Size(52, 13);
+            this.label2.TabIndex = 5;
+            this.label2.Text = "Devices :";
+            // 
+            // button1
+            // 
+            this.button1.Enabled = false;
+            this.button1.Location = new System.Drawing.Point(14, 126);
+            this.button1.Name = "button1";
+            this.button1.Size = new System.Drawing.Size(169, 23);
+            this.button1.TabIndex = 11;
+            this.button1.Text = "Relay 1";
+            this.button1.UseVisualStyleBackColor = true;
+            this.button1.Click += new System.EventHandler(this.button_Click);
+            // 
+            // button2
+            // 
+            this.button2.Enabled = false;
+            this.button2.Location = new System.Drawing.Point(14, 155);
+            this.button2.Name = "button2";
+            this.button2.Size = new System.Drawing.Size(169, 23);
+            this.button2.TabIndex = 12;
+            this.button2.Text = "Relay 2";
+            this.button2.UseVisualStyleBackColor = true;
+            this.button2.Click += new System.EventHandler(this.button_Click);
+            // 
+            // button3
+            // 
+            this.button3.Enabled = false;
+            this.button3.Location = new System.Drawing.Point(14, 184);
+            this.button3.Name = "button3";
+            this.button3.Size = new System.Drawing.Size(169, 23);
+            this.button3.TabIndex = 13;
+            this.button3.Text = "Relay 3";
+            this.button3.UseVisualStyleBackColor = true;
+            this.button3.Click += new System.EventHandler(this.button_Click);
+            // 
+            // button4
+            // 
+            this.button4.Enabled = false;
+            this.button4.Location = new System.Drawing.Point(15, 213);
+            this.button4.Name = "button4";
+            this.button4.Size = new System.Drawing.Size(169, 23);
+            this.button4.TabIndex = 14;
+            this.button4.Text = "Relay 4";
+            this.button4.UseVisualStyleBackColor = true;
+            this.button4.Click += new System.EventHandler(this.button_Click);
+            // 
+            // button5
+            // 
+            this.button5.Enabled = false;
+            this.button5.Location = new System.Drawing.Point(15, 242);
+            this.button5.Name = "button5";
+            this.button5.Size = new System.Drawing.Size(169, 23);
+            this.button5.TabIndex = 15;
+            this.button5.Text = "Relay 5";
+            this.button5.UseVisualStyleBackColor = true;
+            this.button5.Click += new System.EventHandler(this.button_Click);
+            // 
+            // button6
+            // 
+            this.button6.Enabled = false;
+            this.button6.Location = new System.Drawing.Point(15, 271);
+            this.button6.Name = "button6";
+            this.button6.Size = new System.Drawing.Size(169, 23);
+            this.button6.TabIndex = 16;
+            this.button6.Text = "Relay 6";
+            this.button6.UseVisualStyleBackColor = true;
+            this.button6.Click += new System.EventHandler(this.button_Click);
+            // 
+            // button7
+            // 
+            this.button7.Enabled = false;
+            this.button7.Location = new System.Drawing.Point(15, 300);
+            this.button7.Name = "button7";
+            this.button7.Size = new System.Drawing.Size(169, 23);
+            this.button7.TabIndex = 17;
+            this.button7.Text = "Relay 7";
+            this.button7.UseVisualStyleBackColor = true;
+            this.button7.Click += new System.EventHandler(this.button_Click);
+            // 
+            // button8
+            // 
+            this.button8.Enabled = false;
+            this.button8.Location = new System.Drawing.Point(15, 329);
+            this.button8.Name = "button8";
+            this.button8.Size = new System.Drawing.Size(169, 23);
+            this.button8.TabIndex = 18;
+            this.button8.Text = "Relay 8";
+            this.button8.UseVisualStyleBackColor = true;
+            this.button8.Click += new System.EventHandler(this.button_Click);
+            // 
+            // Form1
+            // 
+            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.ClientSize = new System.Drawing.Size(195, 364);
+            this.Controls.Add(this.button8);
+            this.Controls.Add(this.button7);
+            this.Controls.Add(this.button6);
+            this.Controls.Add(this.button5);
+            this.Controls.Add(this.button4);
+            this.Controls.Add(this.button3);
+            this.Controls.Add(this.button2);
+            this.Controls.Add(this.button1);
+            this.Controls.Add(this.label2);
+            this.Controls.Add(this.listBox1);
+            this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedSingle;
+            this.MaximizeBox = false;
+            this.MinimizeBox = false;
+            this.Name = "Form1";
+            this.Text = "USB Relay";
+            this.FormClosing += new System.Windows.Forms.FormClosingEventHandler(this.Form1_FormClosing);
+            this.ResumeLayout(false);
+            this.PerformLayout();
+
+        }
+
+        #endregion
+
+        private System.Windows.Forms.ListBox listBox1;
+        private System.Windows.Forms.Label label2;
+        private System.Windows.Forms.Button button1;
+        private System.Windows.Forms.Button button2;
+        private System.Windows.Forms.Button button3;
+        private System.Windows.Forms.Button button4;
+        private System.Windows.Forms.Button button5;
+        private System.Windows.Forms.Button button6;
+        private System.Windows.Forms.Button button7;
+        private System.Windows.Forms.Button button8;
+
+    }
+}
+
diff --git a/USB_Relay_Control/Form1.cs b/USB_Relay_Control/Form1.cs
new file mode 100644
index 0000000..99985ce
--- /dev/null
+++ b/USB_Relay_Control/Form1.cs
@@ -0,0 +1,121 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Runtime.InteropServices;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace USB_Relay_Control
+{
+
+    public partial class Form1 : Form
+    {
+        int _deviceHandle = 0;
+        List<Button> _buttonList;
+
+        public Form1()
+        {
+            InitializeComponent();
+            
+            refreshList();
+
+            _buttonList = new List<Button>{
+                button1, button2, button3, button4,
+                button5, button6, button7, button8
+            };
+
+            if (listBox1.Items.Count > 0)
+                listBox1.SelectedIndex = 0;
+        }
+
+        private void listBox1_SelectedIndexChanged(object sender, EventArgs e)
+        {
+            if (_deviceHandle > 0)
+            {
+                RelayDeviceWrapper.usb_relay_device_close(_deviceHandle);
+                _deviceHandle = 0;
+            }
+
+            for (int i = 0; i < _buttonList.Count; i++){
+                _buttonList[i].BackColor = BackColor;
+                _buttonList[i].Enabled = false;
+            }
+
+            var lb = (ListBox)sender;
+            usb_relay_device_info device = (usb_relay_device_info)lb.SelectedItem;
+            _deviceHandle = RelayDeviceWrapper.usb_relay_device_open(ref device);
+            int numberOfRelays = (int)device.type;
+            
+            uint status = 0;
+            RelayDeviceWrapper.usb_relay_device_get_status(_deviceHandle, ref status);
+
+            for (int i = 0; i < numberOfRelays; i++)
+            {
+                _buttonList[i].Enabled = true;
+                if (status > numberOfRelays)
+                    _buttonList[i].BackColor = Color.Red;
+                else if (i + 1 == status)
+                    _buttonList[i].BackColor = Color.Red;
+            }
+        }
+
+        private void refreshList()
+        {
+            listBox1.Items.Clear();
+            if (RelayDeviceWrapper.usb_relay_init() != 0)
+            {
+                Console.WriteLine("Couldn't initialize!");
+                MessageBox.Show("Couldn't initialize!");
+                return;
+            }
+            else { Console.WriteLine("Initialized successfully!"); }
+
+            List<usb_relay_device_info> devicesInfos = new List<usb_relay_device_info>();
+            usb_relay_device_info deviceInfo = RelayDeviceWrapper.usb_relay_device_enumerate();
+            devicesInfos.Add(deviceInfo);
+
+            while (deviceInfo.next.ToInt32() > 0)
+            {
+                deviceInfo = (usb_relay_device_info)Marshal.PtrToStructure(deviceInfo.next, typeof(usb_relay_device_info));
+                devicesInfos.Add(deviceInfo);
+            }
+
+            foreach (var device in devicesInfos)
+            {
+                listBox1.Items.Add(device);
+            }
+        }
+
+        private void button_Click(object sender, EventArgs e)
+        {
+            if (_deviceHandle <= 0)
+                return;
+
+            Button btn = (Button)sender;
+            string strNum = btn.Text.Substring(btn.Text.Length - 1, 1);
+            int num = int.Parse(strNum);
+
+            if (btn.BackColor == BackColor || btn.BackColor == Color.Transparent)
+            {
+                int openResult = RelayDeviceWrapper.usb_relay_device_open_one_relay_channel(_deviceHandle, num);
+            }
+            else
+            {
+                int closeResult = RelayDeviceWrapper.usb_relay_device_close_one_relay_channel(_deviceHandle, num);
+            }
+            btn.BackColor = (btn.BackColor == Color.Red) ? BackColor : Color.Red;
+        }
+
+        private void Form1_FormClosing(object sender, FormClosingEventArgs e)
+        {
+            if (_deviceHandle > 0)
+                RelayDeviceWrapper.usb_relay_device_close(_deviceHandle);
+        }
+
+    }
+}
diff --git a/USB_Relay_Control/Form1.resx b/USB_Relay_Control/Form1.resx
new file mode 100644
index 0000000..1af7de1
--- /dev/null
+++ b/USB_Relay_Control/Form1.resx
@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>
\ No newline at end of file
diff --git a/USB_Relay_Control/Program.cs b/USB_Relay_Control/Program.cs
new file mode 100644
index 0000000..9b937b5
--- /dev/null
+++ b/USB_Relay_Control/Program.cs
@@ -0,0 +1,22 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace USB_Relay_Control
+{
+    static class Program
+    {
+        /// <summary>
+        /// The main entry point for the application.
+        /// </summary>
+        [STAThread]
+        static void Main()
+        {
+            Application.EnableVisualStyles();
+            Application.SetCompatibleTextRenderingDefault(false);
+            Application.Run(new Form1());
+        }
+    }
+}
diff --git a/USB_Relay_Control/Properties/AssemblyInfo.cs b/USB_Relay_Control/Properties/AssemblyInfo.cs
new file mode 100644
index 0000000..2d3fff7
--- /dev/null
+++ b/USB_Relay_Control/Properties/AssemblyInfo.cs
@@ -0,0 +1,36 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+
+// General Information about an assembly is controlled through the following 
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+[assembly: AssemblyTitle("USB_Relay_Control")]
+[assembly: AssemblyDescription("")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("")]
+[assembly: AssemblyProduct("USB_Relay_Control")]
+[assembly: AssemblyCopyright("Copyright ©  2018")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// Setting ComVisible to false makes the types in this assembly not visible 
+// to COM components.  If you need to access a type in this assembly from 
+// COM, set the ComVisible attribute to true on that type.
+[assembly: ComVisible(false)]
+
+// The following GUID is for the ID of the typelib if this project is exposed to COM
+[assembly: Guid("c7e7e39f-0051-4229-8423-58086585291f")]
+
+// Version information for an assembly consists of the following four values:
+//
+//      Major Version
+//      Minor Version 
+//      Build Number
+//      Revision
+//
+// You can specify all the values or you can default the Build and Revision Numbers 
+// by using the '*' as shown below:
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]
diff --git a/USB_Relay_Control/Properties/Resources.Designer.cs b/USB_Relay_Control/Properties/Resources.Designer.cs
new file mode 100644
index 0000000..d4f5086
--- /dev/null
+++ b/USB_Relay_Control/Properties/Resources.Designer.cs
@@ -0,0 +1,71 @@
+//------------------------------------------------------------------------------
+// <auto-generated>
+//     This code was generated by a tool.
+//     Runtime Version:4.0.30319.42000
+//
+//     Changes to this file may cause incorrect behavior and will be lost if
+//     the code is regenerated.
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+namespace USB_Relay_Control.Properties
+{
+
+
+    /// <summary>
+    ///   A strongly-typed resource class, for looking up localized strings, etc.
+    /// </summary>
+    // This class was auto-generated by the StronglyTypedResourceBuilder
+    // class via a tool like ResGen or Visual Studio.
+    // To add or remove a member, edit your .ResX file then rerun ResGen
+    // with the /str option, or rebuild your VS project.
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "4.0.0.0")]
+    [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
+    [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
+    internal class Resources
+    {
+
+        private static global::System.Resources.ResourceManager resourceMan;
+
+        private static global::System.Globalization.CultureInfo resourceCulture;
+
+        [global::System.Diagnostics.CodeAnalysis.SuppressMessageAttribute("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")]
+        internal Resources()
+        {
+        }
+
+        /// <summary>
+        ///   Returns the cached ResourceManager instance used by this class.
+        /// </summary>
+        [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
+        internal static global::System.Resources.ResourceManager ResourceManager
+        {
+            get
+            {
+                if ((resourceMan == null))
+                {
+                    global::System.Resources.ResourceManager temp = new global::System.Resources.ResourceManager("USB_Relay_Control.Properties.Resources", typeof(Resources).Assembly);
+                    resourceMan = temp;
+                }
+                return resourceMan;
+            }
+        }
+
+        /// <summary>
+        ///   Overrides the current thread's CurrentUICulture property for all
+        ///   resource lookups using this strongly typed resource class.
+        /// </summary>
+        [global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
+        internal static global::System.Globalization.CultureInfo Culture
+        {
+            get
+            {
+                return resourceCulture;
+            }
+            set
+            {
+                resourceCulture = value;
+            }
+        }
+    }
+}
diff --git a/USB_Relay_Control/Properties/Resources.resx b/USB_Relay_Control/Properties/Resources.resx
new file mode 100644
index 0000000..af7dbeb
--- /dev/null
+++ b/USB_Relay_Control/Properties/Resources.resx
@@ -0,0 +1,117 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>
\ No newline at end of file
diff --git a/USB_Relay_Control/Properties/Settings.Designer.cs b/USB_Relay_Control/Properties/Settings.Designer.cs
new file mode 100644
index 0000000..6689f7b
--- /dev/null
+++ b/USB_Relay_Control/Properties/Settings.Designer.cs
@@ -0,0 +1,30 @@
+//------------------------------------------------------------------------------
+// <auto-generated>
+//     This code was generated by a tool.
+//     Runtime Version:4.0.30319.42000
+//
+//     Changes to this file may cause incorrect behavior and will be lost if
+//     the code is regenerated.
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+namespace USB_Relay_Control.Properties
+{
+
+
+    [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
+    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "11.0.0.0")]
+    internal sealed partial class Settings : global::System.Configuration.ApplicationSettingsBase
+    {
+
+        private static Settings defaultInstance = ((Settings)(global::System.Configuration.ApplicationSettingsBase.Synchronized(new Settings())));
+
+        public static Settings Default
+        {
+            get
+            {
+                return defaultInstance;
+            }
+        }
+    }
+}
diff --git a/USB_Relay_Control/Properties/Settings.settings b/USB_Relay_Control/Properties/Settings.settings
new file mode 100644
index 0000000..3964565
--- /dev/null
+++ b/USB_Relay_Control/Properties/Settings.settings
@@ -0,0 +1,7 @@
+<?xml version='1.0' encoding='utf-8'?>
+<SettingsFile xmlns="http://schemas.microsoft.com/VisualStudio/2004/01/settings" CurrentProfile="(Default)">
+  <Profiles>
+    <Profile Name="(Default)" />
+  </Profiles>
+  <Settings />
+</SettingsFile>
diff --git a/USB_Relay_Control/RelayDeviceWrapper.cs b/USB_Relay_Control/RelayDeviceWrapper.cs
new file mode 100644
index 0000000..18427fd
--- /dev/null
+++ b/USB_Relay_Control/RelayDeviceWrapper.cs
@@ -0,0 +1,95 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Runtime.InteropServices;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace USB_Relay_Control
+{
+    public enum usb_relay_device_type
+    {
+        USB_RELAY_DEVICE_ONE_CHANNEL = 1,
+        USB_RELAY_DEVICE_TWO_CHANNEL = 2,
+        USB_RELAY_DEVICE_FOUR_CHANNEL = 4,
+        USB_RELAY_DEVICE_EIGHT_CHANNEL = 8
+    }
+
+    [StructLayout(LayoutKind.Sequential)]
+    public struct usb_relay_device_info
+    {
+        [MarshalAs(UnmanagedType.LPStr)]
+        public string serial_number;
+        public IntPtr device_path { get; set; }
+        public usb_relay_device_type type { get; set; }
+        public IntPtr next { get; set; }
+
+        public override string ToString()
+        {
+            return device_path.ToInt32().ToString() + " (" + serial_number + ")";
+        }
+    }
+
+    public class RelayDeviceWrapper
+    {
+        [DllImport("usb_relay_device.dll", EntryPoint = "usb_relay_device_enumerate",
+        CallingConvention = CallingConvention.Cdecl)]
+        private static extern IntPtr Pusb_relay_device_enumerate();
+
+        public static usb_relay_device_info usb_relay_device_enumerate()
+        {
+            IntPtr x = RelayDeviceWrapper.Pusb_relay_device_enumerate();
+            usb_relay_device_info a = (usb_relay_device_info)Marshal.PtrToStructure(x, typeof(usb_relay_device_info));
+            return a;
+        }
+
+        [DllImport("usb_relay_device.dll", EntryPoint = "usb_relay_init", SetLastError = true,
+        CharSet = CharSet.Ansi, ExactSpelling = true,
+        CallingConvention = CallingConvention.Cdecl)]
+        public static extern int usb_relay_init();
+
+
+        [DllImport("usb_relay_device.dll", EntryPoint = "usb_relay_device_open_with_serial_number", SetLastError = true,
+        CharSet = CharSet.Ansi, ExactSpelling = true,
+        CallingConvention = CallingConvention.Cdecl)]
+        public static extern int usb_relay_device_open_with_serial_number([MarshalAs(UnmanagedType.LPStr)] string serial_number, int len);
+
+        [DllImport("usb_relay_device.dll", EntryPoint = "usb_relay_device_open", SetLastError = true,
+        CharSet = CharSet.Ansi, ExactSpelling = true,
+        CallingConvention = CallingConvention.Cdecl)]
+        public static extern int usb_relay_device_open(ref usb_relay_device_info device_info);
+
+        [DllImport("usb_relay_device.dll", EntryPoint = "usb_relay_device_close", SetLastError = true,
+        CharSet = CharSet.Ansi, ExactSpelling = true,
+        CallingConvention = CallingConvention.Cdecl)]
+        public static extern void usb_relay_device_close(int hHandle);
+
+        [DllImport("usb_relay_device.dll", EntryPoint = "usb_relay_device_open_all_relay_channel", SetLastError = true,
+        CharSet = CharSet.Ansi, ExactSpelling = true,
+        CallingConvention = CallingConvention.Cdecl)]
+        public static extern int usb_relay_device_open_all_relay_channel(int hHandle);
+
+
+        [DllImport("usb_relay_device.dll", EntryPoint = "usb_relay_device_close_all_relay_channel", SetLastError = true,
+        CharSet = CharSet.Ansi, ExactSpelling = true,
+        CallingConvention = CallingConvention.Cdecl)]
+        public static extern int usb_relay_device_close_all_relay_channel(int hHandle);
+
+
+        [DllImport("usb_relay_device.dll", EntryPoint = "usb_relay_device_close_one_relay_channel", SetLastError = true,
+        CharSet = CharSet.Ansi, ExactSpelling = true,
+        CallingConvention = CallingConvention.Cdecl)]
+        public static extern int usb_relay_device_close_one_relay_channel(int hHandle, int index);
+
+
+        [DllImport("usb_relay_device.dll", EntryPoint = "usb_relay_device_open_one_relay_channel", SetLastError = true,
+        CharSet = CharSet.Ansi, ExactSpelling = true,
+        CallingConvention = CallingConvention.Cdecl)]
+        public static extern int usb_relay_device_open_one_relay_channel(int hHandle, int index);
+
+        [DllImport("usb_relay_device.dll", EntryPoint = "usb_relay_device_get_status", SetLastError = true,
+        CharSet = CharSet.Ansi, ExactSpelling = true,
+        CallingConvention = CallingConvention.Cdecl)]
+        public static extern int usb_relay_device_get_status(int hHandle, ref uint status);
+    }
+}
diff --git a/USB_Relay_Control/USB_Relay_Control.csproj b/USB_Relay_Control/USB_Relay_Control.csproj
new file mode 100644
index 0000000..a57a5d0
--- /dev/null
+++ b/USB_Relay_Control/USB_Relay_Control.csproj
@@ -0,0 +1,114 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="12.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+    <ProjectGuid>{42149B00-ABEA-4E10-9591-D4E6774C7860}</ProjectGuid>
+    <OutputType>WinExe</OutputType>
+    <AppDesignerFolder>Properties</AppDesignerFolder>
+    <RootNamespace>USB_Relay_Control</RootNamespace>
+    <AssemblyName>USB_Relay_Control</AssemblyName>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
+    <FileAlignment>512</FileAlignment>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <PlatformTarget>AnyCPU</PlatformTarget>
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x86'">
+    <DebugSymbols>true</DebugSymbols>
+    <OutputPath>bin\x86\Debug\</OutputPath>
+    <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <DebugType>full</DebugType>
+    <PlatformTarget>x86</PlatformTarget>
+    <ErrorReport>prompt</ErrorReport>
+    <CodeAnalysisRuleSet>MinimumRecommendedRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>true</Prefer32Bit>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|x86'">
+    <OutputPath>bin\x86\Release\</OutputPath>
+    <DefineConstants>TRACE</DefineConstants>
+    <Optimize>true</Optimize>
+    <DebugType>pdbonly</DebugType>
+    <PlatformTarget>x86</PlatformTarget>
+    <ErrorReport>prompt</ErrorReport>
+    <CodeAnalysisRuleSet>MinimumRecommendedRules.ruleset</CodeAnalysisRuleSet>
+    <Prefer32Bit>true</Prefer32Bit>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="System" />
+    <Reference Include="System.Core" />
+    <Reference Include="System.Xml.Linq" />
+    <Reference Include="System.Data.DataSetExtensions" />
+    <Reference Include="Microsoft.CSharp" />
+    <Reference Include="System.Data" />
+    <Reference Include="System.Deployment" />
+    <Reference Include="System.Drawing" />
+    <Reference Include="System.Windows.Forms" />
+    <Reference Include="System.Xml" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="Form1.cs">
+      <SubType>Form</SubType>
+    </Compile>
+    <Compile Include="Form1.Designer.cs">
+      <DependentUpon>Form1.cs</DependentUpon>
+    </Compile>
+    <Compile Include="Program.cs" />
+    <Compile Include="Properties\AssemblyInfo.cs" />
+    <Compile Include="RelayDeviceWrapper.cs" />
+    <EmbeddedResource Include="Form1.resx">
+      <DependentUpon>Form1.cs</DependentUpon>
+    </EmbeddedResource>
+    <EmbeddedResource Include="Properties\Resources.resx">
+      <Generator>ResXFileCodeGenerator</Generator>
+      <LastGenOutput>Resources.Designer.cs</LastGenOutput>
+      <SubType>Designer</SubType>
+    </EmbeddedResource>
+    <Compile Include="Properties\Resources.Designer.cs">
+      <AutoGen>True</AutoGen>
+      <DependentUpon>Resources.resx</DependentUpon>
+    </Compile>
+    <None Include="Properties\Settings.settings">
+      <Generator>SettingsSingleFileGenerator</Generator>
+      <LastGenOutput>Settings.Designer.cs</LastGenOutput>
+    </None>
+    <Compile Include="Properties\Settings.Designer.cs">
+      <AutoGen>True</AutoGen>
+      <DependentUpon>Settings.settings</DependentUpon>
+      <DesignTimeSharedInput>True</DesignTimeSharedInput>
+    </Compile>
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="App.config" />
+  </ItemGroup>
+  <ItemGroup>
+    <Content Include="usb_relay_device.dll">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </Content>
+  </ItemGroup>
+  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+  <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
+       Other similar extension points exist, see Microsoft.Common.targets.
+  <Target Name="BeforeBuild">
+  </Target>
+  <Target Name="AfterBuild">
+  </Target>
+  -->
+</Project>
\ No newline at end of file
diff --git a/USB_Relay_Control/usb_relay_device.dll b/USB_Relay_Control/usb_relay_device.dll
new file mode 100644
index 0000000..dd969fa
Binary files /dev/null and b/USB_Relay_Control/usb_relay_device.dll differ
diff --git a/usb_relay_device.dll b/usb_relay_device.dll
new file mode 100644
index 0000000..dd969fa
Binary files /dev/null and b/usb_relay_device.dll differ