[ARM] Quectel EC25-E with STM32

[desgin]

Hello All,

I am working STM32 Microcontroller
I want to interface Quectel EC25 modem with STm32 to send data to server by TCP
What are the steps ? for AT Commands ?
I am able to send AT command and getting response OK
Even Network registration is Ok by - AT+CEREG=1
Getting Signal Strength by - AT+CSQ
Then what should i do for sending data to server ?
Please Please Help !


Sorry for bad English
-- Desgin

 

[KlausST]

Hi,

* there are so many ways to send data via modem to a server.
* there are so many different types of data
* there are so many different server software

I guess you need to give some more details.

For an example: "Data" can be
* a high resolution video stream which needs continous high data rate..
* audio stream
* an internet page in HTML
* a simple temperature value every day
* an energency call
* machine control
* payment informations
... all data can be encrypt or not, with feedback or not...

Klaus

 

[desgin]

Hi,

* there are so many ways to send data via modem to a server.
* there are so many different types of data
* there are so many different server software

I guess you need to give some more details.

For an example: "Data" can be
* a high resolution video stream which needs continous high data rate..
* audio stream
* an internet page in HTML
* a simple temperature value every day
* an energency call
* machine control
* payment informations
... all data can be encrypt or not, with feedback or not...

Klaus

Thanks for quick reply.

I want to send string of around 500 Char. from STm32 Controller to Server by AT Command via EC25 Modem.
Each frame sends after every 3 Seconds.
Frame format will be fixed - Starts From + and ends by -

Sorry for bad English
_Desgin

 

[KlausST]

Hi,

Is it a "top secret" project, or a super new invention, or why don´t you provide more informations?


Klaus

 

[FvM]

You noticed there's a EC25 TCPIP AT commands manual?

 

[desgin]

Hi,

Is it a "top secret" project, or a super new invention, or why don´t you provide more informations?


Klaus

Hi

There is nothing like Top Secret
I alread Provided information
This is what i required and and this is what i know and this what i need help

Sorry for bad English
Desgin

--- Updated Jun 14, 2021 ---

You noticed there's a EC25 TCPIP AT commands manual?

Hi

Ya i checked that,
But exactly i want to know the steps of AT Commands
Steps like... Once IP address and APN is okay - How to send and receive data from and to server ?

Sorry for bad English
Desgin

 

[KlausST]

Hi,

"Sending data" is like if somebody asks you to transport a parcel to his friend.

It could be a "hot pizza" that needs to be transported fast, but only a few kilometers. It could be some tons of sand or a fertilized egg, it could be gas or fluid.
It could be in the next village, the next town, on an island, on a moutain.
Without knowing details you won't be able to tell him the price.

Back to your application:
Without knowing details it's hard to help.
We know nothing about the server. It could be a lot of different types, an Raspberry in your network, a server farm at the opposite side of the world.
The server - especially if you did not design/program it by yourself - will specify which format, transport medium, which language to use.
It will specify the address, the port, if it needs safety login, if it needs encrytion...

If we don't know this we will be busy to write a book full of suggestions... you need to read them all ... and in the end there will be no way around to find out the (server) requirements in your own. Then hopefully one of the many made suggestions meet these requirements.

--> Find out and tell us the requirements ... you you get fast and focussed help

Klaus

 

[FvM]

But exactly i want to know the steps of AT Commands
Steps like... Once IP address and APN is okay - How to send and receive data from and to server ?

Do you want us to retell the examples chapter in TCIP AT commands manual?

 

[desgin]

Hi Thanks for the reply.

I have attached the Screenshot of Serial Terminal,
All basic commands and SIM commands and GPRS attached or not - All are working fine for me. (see the 1st Image)

but now I don't know how to set APN with Quectel EC25 module ? (see the 2nd Image)
I an sending AT+CGDCONT? - but not understanding the response!
In PIC Microcontroller - "AT+CSTT=\"web.vodafone.de\"" command was able to set APN - Which is not working here!

So please help me in that
Thanks in advance

Sorry for bad English
Desgin

 

[desgin]

Hi Thanks for the reply.

I have attached the Screenshot of Serial Terminal,
All basic commands and SIM commands and GPRS attached or not - All are working fine for me. (see the 1st Image)

but now I don't know how to set APN with Quectel EC25 module ? (see the 2nd Image)
I an sending AT+CGDCONT? - but not understanding the response!
In PIC Microcontroller - "AT+CSTT=\"web.vodafone.de\"" command was able to set APN - Which is not working here!

So please help me in that
Thanks in advance

Sorry for bad English
Desgin

Yes thank you all.
I am able to send data to serve by AT command - By your help.
Thanks for your help now i will make Software.

Now please tell me how to receive data from Server to EC25 module and send those data to STM32 Controller ?
Please help!

 

[KlausST]

Hi,

Could you please read the examples. Adjust the software for your needs test it...
Then please ask a more detailed question:
* tell us what you want to achieve
* show us your code
* tell us what you expect
* and tell us what not is like expected.

Klaus