Send data to a server using sim800l gprs module

 The process to send data to a server using the sim800l GPRS module is easier than you think. The problem most of the beginners face is the issue with sim800l network stability. We will cover the sim800l network stability issue in the next section but first, let's understand why you need to send data to a server in case you're not using this for a particular application and you're learning to get acquainted with Arduino projects. 

You need to send data to a server when you're building a web app/ interface to broadcast your data from the embedded systems/Arduino-based system you have built. Let's say you want to build a condition monitoring system for your small garden in your yard. You want to monitor the water level in the garden or the humidity or temperature. In that case, you need to send the data to a server and build a front-end user interface that can visit from any network. anywhere around the world.

What is sim800l and How to solve Network Stability Issue?

Sim800l is a small module generally called the sim card module where you can insert a sim to accept texts/ calls or make calls and sent texts. As it is also a GPRS module you can access the internet using this module. The power ratings for the sim800l module are in the range between 3.4 to 4.4 volts and the current should be 2A.
 
If you power the module, you see a led blinking every second which means it has got power but the network isn't stable. 

When it blinks every two seconds, the network is stable and you can send/ receive texts and calls.

In case it blinks every three seconds, you're using the GPRS to access the internet.

The best choice is to use a Li-po battery of 3.7 volts to solve the network issue. If you can manage it there is another option and that is you can power it using Arduino 3.3volts port. Though the power rating of Arduino is lower, I see it work just fine.

Design Arduino Sim8000l circuit in Fritzing 

Sim800l Arduino Fritzing Circuit



The Server-side setup part and the explanation of the code will be found in the video attached below.



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