使用serialPort控件进行串口通信

1、选取串口

serialPort.PortName = 串口名;

2、打开串口

serialPort.Open();

3、关闭串口

serialPort.Close();

4、发送信息

serialPort.Write(信息);

5、接收信息并显示出来

int count = serialPort.BytesToRead; //获取接收信息的字节数

byte[] readBuffer = new byte[count];

serialPort.Read(readBuffer, 0, readBuffer.Length);

         string str = System.Text.Encoding.UTF8.GetString(readBuffer); //UTF-8形式信息

         if (str != " ")

         {

               delShowCode dShow = new delShowCode(ShowCode);

               this.Invoke(dShow, str);

 }

private delegate void delShowCode(string sCode);

         private void ShowCode(string sCode)

         {

             //显示操作

}