POST HTTP command to update data into web server using GPRS

beema said:

Hi,

Finally i could able to post data using POST command. You can upload data into web server using POST or even GET command. All depends on the server (server may accept data by POST or GET command). To know what server accepts using sniffer. For that i tried below link to download.

https://www.wireshark.org/download.html

Regarding POST command i tried with the below link.

**broken link removed**

First i sniffed the data transmitting between my PC and server using above link.
Based on that i tried the same using AT commands from HyperTerminal.

at+cipstart=”TCP”,”216.128.29.26”,”80”
POST **broken link removed** HTTP/1.1^m^j
Host: www.w3schools.com^m^j
Content-Type: application/x-www-form-urlencoded^m^j
Content-Length: 10^m^j^m^j
Celsius=32^z (Nothing to be pressed and even without gaps)

Note: ^m is Carrier return
^j is Line Feed
^z is Ctr-Z
and ^ is the symbol from Keyboard.

Regards
Vishnu

Click to expand...

mrunmoy said:

Hi Vishnu, those symbols with letters which you wrote at the end. Do I send them as - is i.e, does the SIm900 module understand these symbols and letters such as ^m
OR
you pressed these key combinations after typing at hyperterminal ?

Thanks,

Click to expand...

Code C - [expand]
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char *sendmsgWork[] = {
"AT+CIPSTART=\"TCP\",\"68.232.44.251\",\"80\"",
"AT+CIPSEND",
"POST **broken link removed** HTTP/1.1",
"Host: www.w3schools.com",
"Content-Type: application/x-www-form-urlencoded",
"Content-Length: 10\r\n",
"Celsius=32"
};