What is the difference between SMS passthrough and text messages? 51 microcontroller can realize SMS passthrough? SMS passthrough is to use the AT command control?

CodePudding user response:

4 g command mode and passthrough mode,

1, 4 G has just started to command mode, you need to send the 4 G module series of the AT command, 4 G module will send you the AT command returns the corresponding packet,
Finally, you need to send the 4 g module TCP connection message, when after the success of the TCP connection, 4 g module will give you return a string of a string, the string will be CONNECT, end result indicates that the command mode, begin to enter passthrough mode,
2, the passthrough mode
You send message to 4 g module, 4 g module will be forwarded,
When the outside world for 4 g module sends the message, 4 g module will be forwarded to you,

It's as simple as that

CodePudding user response:

When a TCP connection is disconnected, 4 g module will give you returned a special string,
In passthrough mode, you just need to check whether you receive the message of the special string, will know whether the TCP connection is broken!

TCP connection is broken, after 4 g module from passthrough mode automatically switch to the command mode

CodePudding user response:

Passthrough is take the data traffic, is that you have a network, text only need a 2 g signal

CodePudding user response:

51 single chip microcomputer can passthrough? What command should be used?

CodePudding user response:

reference 1st floor ba_wang_mao response:

4 g command mode and passthrough mode,

1, 4 G has just started to command mode, you need to send the 4 G module series of the AT command, 4 G module will send you the AT command returns the corresponding packet,
Finally, you need to send the 4 g module TCP connection message, when after the success of the TCP connection, 4 g module will give you return a string of a string, the string will be CONNECT, end result indicates that the command mode, begin to enter passthrough mode,
2, the passthrough mode
You send message to 4 g module, 4 g module will be forwarded,
When the outside world for 4 g module sends the message, 4 g module will be forwarded to you,

It's as simple as that

51 single chip microcomputer can passthrough? What command should be used?

CodePudding user response:

1, can be any single chip microcomputer and 4 g module implements passthrough, but you need before you realize passthrough under [command mode] for 4 g module sends a series of the AT command,
2, looking for a 4 g module manufacturer consulting user manual

CodePudding user response:

Command mode of the AT command is sent on the serial port assistant to send, or sent by single chip microcomputer the AT command?

CodePudding user response:

refer to 7th floor m0_46500923 response:

command mode of the AT command is sent on a serial port assistant to send, or sent by single chip microcomputer the AT command?

Your 4 g welding on the single chip microcomputer module, so it must be on the single chip microcomputer sends the AT command!

CodePudding user response:

Can find a TCP server assistant, single-chip computer to send an instruction (send link your company's Intranet command instruction, the network need to be independent of your company a static IP address), if the connection is successful, from command mode switch to passthrough mode, after the MCU send TCP assistant message, TCP assistants will be displayed,

CodePudding user response:

CodePudding user response:

reference 4 floor m0_46500923 response:

51 single chip microcomputer can passthrough? What command should be used?

Of course, use the AT command, the module specification