使用GSM调制解调器发送AT的问题 [英] Problem with AT send with GSM modem

问题描述

我有一个GSM调制解调器，Wavecom。

当我使用HyperTerminal连接它时，我可以发送带有标准AT命令的短信，如下所示：


AT + CMGS =" + 351nnnnnnnnn" < CR>

>要在短信中发送的文字< Control-Z>


和短信继续播放。


注意：< CR>表示输入

注意：< CR>是ASCII 13，Control-Z是ASCII 26.


当我使用VisualBasic时，SAME AT序列不起作用。

我得到一个错误（两次）。


手册说要执行以下操作：

MSComm.Output =" AT + CMGS =" &安培; chr（34）& ++351nnnnnnnnn &安培; chr（34）& chr（13）


MsComm.Output ="要在邮件中发送的文字 &安培; chr（26）。


注意：chr（34）是逗号（）的字符。


有什么问题？


非常感谢任何帮助。

I have a GSM modem, Wavecom.
When I connect to it using HyperTerminal, i can send SMS with the standard AT comands, like this:

AT+CMGS="+351nnnnnnnnn" <CR>
> text to send in the message <Control-Z>

and the SMS goes on.

Note: <CR> means ENTER
Note: <CR> is ASCII 13, and Control-Z is ASCII 26.

When I use VisualBasic, the SAME AT sequence does not work.
And I get an ERROR (twice).

The manual says to do the following:

MSComm.Output = "AT+CMGS=" & chr(34) & "+ "+351nnnnnnnnn" & chr(34) & chr(13)

MsComm.Output = "text to send in the message" & chr(26).

Note: chr(34) is the character for the commas(").

What is wrong?

Many thanks for any help.

推荐答案

嗨。你可以尝试这个

Hi. You could try this

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我有一个GSM调制解调器，Wavecom 。

当我使用HyperTerminal连接它时，我可以发送带有标准AT命令的短信，如下所示：

AT + CMGS =" + 351nnnnnnnnn" < CR>
> 要在短信中发送的文字< Control-Z>

，短信继续播放。

当我使用VisualBasic时，相同的AT序列不起作用。

我得到一个错误（两次）。

手册说要执行以下操作：

MSComm.Output =" AT + CMGS =" &安培; chr（34）& ++351nnnnnnnnn &安培; chr（34）& chr（13）

MsComm.Output ="要在邮件中发送的文字 &安培;字符（26）。

I have a GSM modem, Wavecom.
When I connect to it using HyperTerminal, i can send SMS with the standard AT comands, like this:
AT+CMGS="+351nnnnnnnnn" <CR>
> text to send in the message <Control-Z>
and the SMS goes on.
When I use VisualBasic, the SAME AT sequence does not work.
And I get an ERROR (twice).
The manual says to do the following:
MSComm.Output = "AT+CMGS=" & chr(34) & "+ "+351nnnnnnnnn" & chr(34) & chr(13)
MsComm.Output = "text to send in the message" & chr(26).

几个问题...

• 你确定它只是 发送的CR在AT命令之后？
• 你得到了什么错误？
• >是什么？代表在第二行？ （我问主要是因为它不存在于VB版本中。）
• 你确定你处于命令模式吗？我似乎记得（从10多年前开始，我认为）你必须暂停至少一秒，然后发送+++。然后另一个暂停，进入命令模式。但这可能只适用于您当时在线的情况，对吗？
• 此代码是否已复制/粘贴或在此处输入？因为
  MSComm.Output =AT + CMGS = &安培; chr（34）& ++351nnnnnnnnn &安培; chr（34）& chr（13）
  
  似乎在错误的地方有引号。它应该是
  MSComm.Output =" AT + CMGS =" &安培; chr（34）& " +&351nnnnnnnnn QUOT; &安培; chr（34）& chr（13）

A couple of questions...

• Are you certain that it''s only a CR which is sent after the AT command?
• What error are you getting?
• What does the ">" represent on the second line? (I ask mainly because it is not present in the VB version.)
• Are you sure you''re in command mode? I seem to recall (from more than 10 years ago, I think) that you have to pause for at least a second, then send "+++" then another pause, to go into command mode. But this probably only applies if you are online at the time, right?
• Is this code copied/pasted, or typed in here? Because
  MSComm.Output = "AT+CMGS=" & chr(34) & "+ "+351nnnnnnnnn" & chr(34) & chr(13)
  seems to have quotes in the wrong places. It probably should have been
  MSComm.Output = "AT+CMGS=" & chr(34) & "+351nnnnnnnnn" & chr(34) & chr(13)




是的。在那里得到它。你应该提前13个小时：）

Yeah. Get with it down there. You''re supposed to be 13 hours ahead of me :)




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