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ghjk guru
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Read data from GSM modem using visual c# 2005
Jun 4 2008 6:36 AM
I'm write code to read data from GSM modem. but it couldn't read modem response. Could you please help me? I'll post my code.
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.IO.Ports;
using System.Threading;
using System.Timers;
using System.Diagnostics;
namespace rainfall
{
public partial class Form1 : Form
{
//create an Serial Port object
SerialPort sp = new SerialPort();
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
}
private void btn_Start_Click(object sender, EventArgs e)
{
sp.BaudRate = 19200;
sp.ReceivedBytesThreshold = 1;
try
{
//Open serial port
sp.PortName = "COM1";
sp.Open();
}
catch (System.Exception ex)
{
lblError.Text = ex.Message;
}
}
private void btn_Write_Click(object sender, EventArgs e)
{
try
{
//Write line to serial port
//sp.Write(texSms.Text + "\r\n");
sp.Write(txt_Sms.Text + "\r\n");
//texSms.Text = "";
txt_Sms.Text = "";
}
catch (System.Exception ex)
{
lblError.Text = ex.Message;
}
//Thread.Sleep(200);
//Set time delay
//System.Threading.Thread.Sleep(30);
//sp.WriteTimeout = 200;
}
private void btn_Read_Click(object sender, EventArgs e)
{
try
{
//Cler text box
//Read serial port and displayed the data in text box
//Thread current = Thread.CurrentThread;
//Thread.Sleep(1000);
txt_Sms.Text = sp.ReadLine();
//texSms.Text = sp.ReadExisting();
//sp.Write("Connected" + "\nS");
}
catch (System.Exception ex)
{
lblError.Text = ex.Message;
}
}
}
}
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