This is my idea of what serial communication with gsm-sim800l could look like. There are all sorts of different libraries for different gsm-sim800l modules. I have included simple code for sending and ...

This project monitors voltage using a potentiometer connected to an Arduino. When the voltage reaches 4.8V or higher, the system automatically sends an SMS and makes a phone call using the SIM800L GSM ...

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 ...

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 ...

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 ...