diff --git a/HKCardOUT/COM/COMHelper.cs b/HKCardOUT/COM/COMHelper.cs
new file mode 100644
index 0000000..420166f
--- /dev/null
+++ b/HKCardOUT/COM/COMHelper.cs
@@ -0,0 +1,34 @@
+using HKCardOUT.Helper;
+using System;
+using System.Collections.Generic;
+using System.IO.Ports;
+using System.Text;
+
+namespace COM
+{
+    public class COMHelper : Singleton<COMHelper>
+    {
+        public SerialPort serialPort;
+        public void OpenCOM()
+        {
+            serialPort = new SerialPort("COM3", 9600, Parity.None, 8, StopBits.One);
+            //数据接受
+            serialPort.DataReceived += new SerialDataReceivedEventHandler(DataReceived);
+            serialPort.ReceivedBytesThreshold = 1;
+            serialPort.RtsEnable = true;
+            try
+            {
+                if (serialPort.IsOpen) return;
+                serialPort.Open();
+            }
+            catch { }
+        }
+        /// 数据接收事件
+        private void DataReceived(object sender, SerialDataReceivedEventArgs e)
+        {
+            byte[] readBuffer = new byte[serialPort.ReadBufferSize];
+            serialPort.Read(readBuffer, 0, readBuffer.Length);
+            string str = Encoding.Default.GetString(readBuffer);
+        }
+    }
+}
diff --git a/HKCardOUT/HKCardOUT.csproj b/HKCardOUT/HKCardOUT.csproj
index e196092..716ea4d 100644
--- a/HKCardOUT/HKCardOUT.csproj
+++ b/HKCardOUT/HKCardOUT.csproj
@@ -31,6 +31,7 @@
     <PackageReference Include="Quartz" Version="3.4.0" />
     <PackageReference Include="Stylet" Version="1.3.6" />
         <PackageReference Include="SqlSugarCore" Version="5.1.2.7" />
+        <PackageReference Include="System.IO.Ports" Version="6.0.0" />
     <PackageReference Include="XExten.Advance" Version="1.2.4.2-preview" />    
   </ItemGroup>
   <ItemGroup>