我有一个arduino RFID enter code here
读卡器通过serail端口向我发送数据,但我
不接收正确形式的数据,如0001685839 025,47439
请帮我的代码是这个
using System;
using System.IO.Ports;
class PortDataReceived
{
public static void Main()
{
SerialPort mySerialPort = new SerialPort("COM3");
mySerialPort.BaudRate = 9600;
mySerialPort.Parity = Parity.None;
mySerialPort.StopBits = StopBits.One;
mySerialPort.DataBits = 8;
mySerialPort.Handshake = Handshake.None;
mySerialPort.RtsEnable = true;
mySerialPort.DataReceived += new SerialDataReceivedEventHandler(DataReceivedHandler);
mySerialPort.Open();
Console.WriteLine();
Console.ReadKey();
mySerialPort.Close();
}
private static void DataReceivedHandler(object sender,SerialDataReceivedEventArgs e)
{
SerialPort sp = (SerialPort)sender;
string indata = sp.ReadExisting();
Console.Write(indata);
}
}
答案 0 :(得分:0)
您收到了哪些数据? com端口有一个缓冲区的概念。如果数据不适合端口缓冲区,最终可能会有两个读取事件。
您可以尝试这样的事情:
from subprocess import check_output
user_name = check_output('whoami').strip()
print user_name
#out: userX
答案 1 :(得分:0)