// Set APN
AT+CGDCONT=1,"IP","iot.1nce.net"
OK

AT+CGACT=1,1
OK

// Configure HTTP parameters
AT+UHTTP=0
OK

AT+UHTTP=1,1,"https://www.example.com"
OK

AT+UHTTP=2,1
OK

AT+UHTTP=3,0,"User-Agent: MyClient"
OK

// Initiate HTTP GET request
AT+UHTTPC=0,5,"/api/data"
OK

// Read HTTP response
AT+UHTTPC=0,6
+UHTTPCR: 0,200,185
OK

// Retrieve response data
AT+URDFILE="response.txt",185
OK

// Close HTTP connection
AT+UHTTP=0
OK

Preparation

Open a serial terminal and connect to the SARA-R4 module using the AT command interface.

Network Registration

Ensure that the module is registered to the cellular network if not, check the recipe SARA-R Network registration

Configure the APN

Activate PDP context

This command activates the PDP (Packet Data Protocol) context for data communication.

Configure HTTP parameters

AT+UHTTP=0: This command initializes the HTTP profile. It prepares the module for HTTP communication.

AT+UHTTP=1,1,"<URL>": Here, you need to replace <URL> with the URL of the web page you want to retrieve. This parameter sets the URL for the HTTP request.

AT+UHTTP=2,1: This command configures the HTTP method. The value 1 specifies that you want to use the GET method. If you want to use a different method like POST, you can adjust the value accordingly.

AT+UHTTP=3,0,"<request_header>": This optional parameter allows you to include request headers in the HTTP request. Request headers provide additional information to the server. For example, you can set the User-Agent header to specify the client making the request.

<request_header> should be replaced with the desired request header. For example, you can use "User-Agent: MyClient" to set the User-Agent header to "MyClient". You can include multiple request headers by separating them with line breaks ("\r\n").

Initiate the HTTP GET request

The 5 represents the timeout value in seconds.

Read the HTTP response

Retrieve the response data

Close the HTTP connection

Warp Up

Please note that the actual AT command set and syntax may vary based on the specific firmware version and configuration of your SARA-R410M module. Refer to the u-blox documentation and AT command guide for your specific module version for accurate and detailed command information.