使用AT命令通过Nokia Mobile发送短信 [英] Send SMS via Nokia Mobile Using AT Commands

问题描述

我正在尝试使用AT Commands通过诺基亚手机(C1-01)发送短信，并且可以使用此vb.net代码成功发送短信.

I'm trying to send sms with my Nokia cell phone (C1-01) using AT Commands and I can successfully send SMS with this vb.net code.

Button_Send_Click:

Dim SMSPort = New SerialPort
    With SMSPort
        .PortName = "COM2"
        .BaudRate = 9600
        .Parity = Parity.None
        .DataBits = 8
        .StopBits = StopBits.One
        .Handshake = Handshake.None
        .DtrEnable = True
        .RtsEnable = True
        .NewLine = vbCrLf
    End With

    SMSPort.Open()

    SMSPort.Write("AT+CMGF=1" & vbCrLf)
    Threading.Thread.Sleep(200)

    SMSPort.Write("AT+CMGS=" & Chr(34) & TextBox1.Text & Chr(34) & vbCrLf) 'TextBox1.text = Recipient mobile number and chr(34) = "
    Threading.Thread.Sleep(200)

    SMSPort.Write("TEST MESSAGE" & Chr(26)) 'chr(26) = →
    Threading.Thread.Sleep(200)

    MsgBox(SMSPort.ReadExisting())

    SMSPort.Close()

第一次工作正常，在触发此代码后，当我第二次按发送按钮时，我在手机上收到短信TEST MESSAGE(精妙)但我在手机上收到短信，其中包含: AT+CMGF=1 AT+CMGS=+92XXYYYYYY TEST MESSAGE

It's working fine for the 1st time, after fire this code I received SMS on my cell phone TEST MESSAGE(Brilliant) BUT when I press send button in second time I received SMS on my cell phone which contains: AT+CMGF=1 AT+CMGS=+92XXYYYYYY TEST MESSAGE

为什么第二次在SMS中包含"AT命令，即AT + CMGF等"? 如何从中删除不需要的文本? 在打开和关闭串行端口(SMSPort)之后，我也尝试过SMSPort.DiscardInBuffer()和SMSPort.DiscardOutBuffer()属性，但是我的问题无法解决. 我已经在Google上搜索了很多，但都徒劳无功，请帮助我解决此问题.

Why in second time it's including "AT Commands i.e AT+CMGF etc.." in SMS? How can I remove unwanted text from this? I have also try SMSPort.DiscardInBuffer() and SMSPort.DiscardOutBuffer() Properties after opening and before closing my serial port (SMSPort) but my issue is not resolving. I have googled alot but all is vain, Please help me to resolve this issue.

平台:带有.NET 2.0的Microsoft Visual Basic 2010

Platform: Microsoft Visual Basic 2010 with .NET 2.0

推荐答案

首先，您必须认真地将AT命令处理重做为

First of all, you must seriously redo your AT command handling to

• 读取并解析从调制解调器返回的每个响应行，直到获得最终结果代码.这适用于每个命令行调用，没有任何异常.有关更多详细信息，请参见此答案.
• 永远不要在处理AT命令的任何代码中调用Threading.Thread.Sleep.请参阅此答案以了解有关中止下一条命令的风险的更多详细信息.
• 对于AT+CMGS，具体来说，您还必须在发送数据之前等待"\ n \ r>"响应，请参见

• Read and parse the every single response line given back from the modem until you get a final result code. This applies for every single command line invocation, no exceptions whatsoever. See this answer for more details.
• Never ever call Threading.Thread.Sleep in any code that handles AT commands. See this answer for more details about the risk of aborting the next command.
• For AT+CMGS specifically you also MUST wait for the "\n\r> " response before sending data, see this answer (again) for more details.

在解决这些基本问题之前，您无法期望任何成功的行为.

Before fixing these fundamental issues you cannot expect any successful behaviour.

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