Question

我想获得AT命令响应我想从我的GSM调制解调器读取短信。

我在谷歌上安装了一些代码，这个脚本发送AT命令但没有获得响应这是我的代码：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.IO.Ports;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace CSharp_SMS
{
    public partial class Form_SMS_Sender : Form
    {
        private SerialPort _serialPort;
        public Form_SMS_Sender()
        {
            InitializeComponent();
        }

        private void buttonSend_Click(object sender, EventArgs e)
        {
            string number = textBoxNumber.Text;
            string message = textBoxMessage.Text;

            _serialPort = new SerialPort("COM6", 115200);

            Thread.Sleep(1000);

            _serialPort.Open();

            Thread.Sleep(1000);

            _serialPort.WriteLine("AT" + "\r");



            Thread.Sleep(1000);

            string status = _serialPort.ReadLine();

            labelStatus.Text = "|-"+ status + "-|";

            _serialPort.Close();
        }
    }
}

这段代码不起作用没有得到回应，但发送AT命令如何得到回应？
感谢

Answer 1

        celu.RtsEnable = true;
        celu.DtrEnable = true;
        celu.WriteBufferSize = 3000;
        celu.BaudRate = 9600;
        celu.PortName = "COM26"; // You have check what port your phone is using here, and replace it
        celu.Open();
        //string cmd = "AT+CLIP=1";  // Here you put your AT command
        //celu.WriteLine(cmd);
        celu.WriteLine ("AT+CLIP=1"+"\r");

        Thread.Sleep(500);
        //celu.Open();

        string ss = celu.ReadExisting();

Answer 2

如果调制解调器上的ECHO关闭，您将无法对AT命令做出任何响应。

首先发送ATE1确保启用回声

Thread.Sleep(1000);
_serialPort.WriteLine("ATE1" + "\r");

Thread.Sleep(1000);
_serialPort.WriteLine("AT" + "\r");

如何C＃向AT调制解调器发送AT命令并获得响应

2 个答案: