Because the SIM800L module is very flexible, a great GSM project design can be relatively simple. But there are a number of reasons for experimenting with more complex ideas, such as enhanced ...

To use the library, simply include the library in your sketch and create an instance of the SIM800L class. The library provides a set of functions for sending and receiving SMS messages, making and ...

It is very easy to build an “SMS-controlled relay” with the help of a cheap GSM modem module and a small microcontroller board. Here, I’m using the SIM800L and Arduino Nano V3 to develop a nifty ...

Add the function to the Sim800L to include DTMF tones so that incoming calls can complete more actions based of a number pressed when a call is in progress. No Support for DTMF tones to be received by ...

Abstract: Internet of Things (IoT) is the technology that helps in communication between machines, circuits, and different types of devices. This feature has applications in the health care industry ...