C# Serial Port Delayed Reading Guide

1 year ago
William Carter
1 minute

In C#, you can use the SerialPort class to read serial data and implement delayed reading using the Thread.Sleep() method.

First, the System.IO.Ports namespace needs to be imported.

using System.IO.Ports;

Next, create a SerialPort object and configure the corresponding settings such as the port number and baud rate.

SerialPort serialPort = new SerialPort("COM1", 9600);

Next, open the serial port.

serialPort.Open();

Next, you can use the methods serialPort.ReadLine() or serialPort.Read() to read data from the serial port. To achieve delayed reading, you can use the Thread.Sleep() method to pause execution for a period of time.

Thread.Sleep(1000); // 延时1秒
string data = serialPort.ReadLine(); // 读取串口数据

Finally, remember to close the serial port when the program ends.

serialPort.Close();

Full code example:

using System.IO.Ports;
using System.Threading;

namespace SerialPortDemo
{
    class Program
    {
        static void Main(string[] args)
        {
            SerialPort serialPort = new SerialPort("COM1", 9600);
            serialPort.Open();

            Thread.Sleep(1000); // 延时1秒
            string data = serialPort.ReadLine(); // 读取串口数据
            Console.WriteLine(data);

            serialPort.Close();
        }
    }
}

Please make sure to set the appropriate baud rate, data bits, parity bit, etc. when reading data from a serial port, and parse and handle the data according to the data format of the serial device.

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