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Bumped by Community user
Bumped by Community user
Bumped by Community user
Bumped by Community user
Typos and grammar mistakes.
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edit approved Aug 20, 2019 at 10:08
user58937
edit approved Aug 20, 2019 at 10:08
user58937
  • 13
  • 3

I have a question regarding to SIM800L and HTTP GET request. I'm using this https://exploreembedded.com/wiki/Setting_up_GPRS_with_SIM800L simple code to communicate with SIM800l with AT commands. To perform the HTTP request, I use the following set of AT commands:

AT+CFUN=1
OK

AT+CSTT="internet","",""
OK

AT+CIICR
OK

AT+CIFSR
10.180.xxx.xx

AT+CIPSTART="TCP","84.42.xxx.xx",80
OK

CONNECT OK


AT+CIPSEND=52
> 
GET /bakalarka.php/? HTTP/1.1
Host:84.42.xxx.xx



SEND OK
HTTP/1.1 200 OK
Date: Mon, 19 Aug 2019 16:20:27 GMT
Server: Apache
X-Frame-Options: SAMEORIGIN
Vary: Accept-Encoding
Transfer-Encoding: chunked
Content-Type: text/html; charset=UTF-8

10
time201908191820
0



CLOSED

The problem is that sometimes. Or every other time, I don't get the whole HTTP answearanswer. I usually get only the beginning. Something like this:

AT+CIPSEND=52
> 
GET /bakalarka.php/? HTTP/1.1
Host:84.42.xxx.xx



SEND OK
HTTP/1.1 200 OK
Date: Mon, 19 Aug 2019 16:20:27 GMT
Server: Apac

and then after a couple of seconds, the connectionsconnection closes.

CLOSED

Do you know what could cause that? It's literally random. I need the information from the webpage (it's the current time) and currently, it's really unreliable.

Another question. What does the "10" and "0" mean in the HTTP request? The "time201908191820" is the current time from printed from PHP.

Thank you very much!

I have a question regarding to SIM800L and HTTP GET request. I'm using this https://exploreembedded.com/wiki/Setting_up_GPRS_with_SIM800L simple code to communicate with SIM800l with AT commands. To perform the HTTP request, I use following set of AT commands:

AT+CFUN=1
OK

AT+CSTT="internet","",""
OK

AT+CIICR
OK

AT+CIFSR
10.180.xxx.xx

AT+CIPSTART="TCP","84.42.xxx.xx",80
OK

CONNECT OK


AT+CIPSEND=52
> 
GET /bakalarka.php/? HTTP/1.1
Host:84.42.xxx.xx



SEND OK
HTTP/1.1 200 OK
Date: Mon, 19 Aug 2019 16:20:27 GMT
Server: Apache
X-Frame-Options: SAMEORIGIN
Vary: Accept-Encoding
Transfer-Encoding: chunked
Content-Type: text/html; charset=UTF-8

10
time201908191820
0



CLOSED

The problem is that sometimes. Or every other time, I don't get the whole HTTP answear. I usually get only the beginning. Something like this:

AT+CIPSEND=52
> 
GET /bakalarka.php/? HTTP/1.1
Host:84.42.xxx.xx



SEND OK
HTTP/1.1 200 OK
Date: Mon, 19 Aug 2019 16:20:27 GMT
Server: Apac

and then after a couple of seconds the connections closes.

CLOSED

Do you know what could cause that? It's literally random. I need the information from the webpage (it's the current time) and currently it's really unreliable.

Another question. What does the "10" and "0" mean in the HTTP request? The "time201908191820" is current time from printed from PHP.

Thank you very much!

I have a question regarding SIM800L and HTTP GET request. I'm using this https://exploreembedded.com/wiki/Setting_up_GPRS_with_SIM800L simple code to communicate with SIM800l with AT commands. To perform the HTTP request, I use the following set of AT commands:

AT+CFUN=1
OK

AT+CSTT="internet","",""
OK

AT+CIICR
OK

AT+CIFSR
10.180.xxx.xx

AT+CIPSTART="TCP","84.42.xxx.xx",80
OK

CONNECT OK


AT+CIPSEND=52
> 
GET /bakalarka.php/? HTTP/1.1
Host:84.42.xxx.xx



SEND OK
HTTP/1.1 200 OK
Date: Mon, 19 Aug 2019 16:20:27 GMT
Server: Apache
X-Frame-Options: SAMEORIGIN
Vary: Accept-Encoding
Transfer-Encoding: chunked
Content-Type: text/html; charset=UTF-8

10
time201908191820
0



CLOSED

The problem is that sometimes. Or every other time, I don't get the whole HTTP answer. I usually get only the beginning. Something like this:

AT+CIPSEND=52
> 
GET /bakalarka.php/? HTTP/1.1
Host:84.42.xxx.xx



SEND OK
HTTP/1.1 200 OK
Date: Mon, 19 Aug 2019 16:20:27 GMT
Server: Apac

and then after a couple of seconds, the connection closes.

CLOSED

Do you know what could cause that? It's literally random. I need the information from the webpage (it's the current time) and currently, it's really unreliable.

Another question. What does the "10" and "0" mean in the HTTP request? The "time201908191820" is the current time from printed from PHP.

Thank you very much!

Source Link
Krystof
Krystof
  • 31
  • 3

SIM800L HTTP request is not reliable

I have a question regarding to SIM800L and HTTP GET request. I'm using this https://exploreembedded.com/wiki/Setting_up_GPRS_with_SIM800L simple code to communicate with SIM800l with AT commands. To perform the HTTP request, I use following set of AT commands:

AT+CFUN=1
OK

AT+CSTT="internet","",""
OK

AT+CIICR
OK

AT+CIFSR
10.180.xxx.xx

AT+CIPSTART="TCP","84.42.xxx.xx",80
OK

CONNECT OK


AT+CIPSEND=52
> 
GET /bakalarka.php/? HTTP/1.1
Host:84.42.xxx.xx



SEND OK
HTTP/1.1 200 OK
Date: Mon, 19 Aug 2019 16:20:27 GMT
Server: Apache
X-Frame-Options: SAMEORIGIN
Vary: Accept-Encoding
Transfer-Encoding: chunked
Content-Type: text/html; charset=UTF-8

10
time201908191820
0



CLOSED

The problem is that sometimes. Or every other time, I don't get the whole HTTP answear. I usually get only the beginning. Something like this:

AT+CIPSEND=52
> 
GET /bakalarka.php/? HTTP/1.1
Host:84.42.xxx.xx



SEND OK
HTTP/1.1 200 OK
Date: Mon, 19 Aug 2019 16:20:27 GMT
Server: Apac

and then after a couple of seconds the connections closes.

CLOSED

Do you know what could cause that? It's literally random. I need the information from the webpage (it's the current time) and currently it's really unreliable.

Another question. What does the "10" and "0" mean in the HTTP request? The "time201908191820" is current time from printed from PHP.

Thank you very much!