The code written in Arduino can communicate with the GSM modem using AT commands. AT commands are sent or received from the modem using serial communication functions provided by Arduino library.

GSM Module TX Pin: Connect to Arduino Mega RX1 (Pin 19) GSM Module Reset Pin: Connect to Arduino Mega Pin 40; Baud Rate: Baud Rate: 9600 (Both for GSM module and USB serial communication) Keywords and ...

The set of operation code is placed in the void setup (). Each time when the Arduino is powered ON’s an SMS will send, as the void setup function only run once. Or Resetting the Arduino board (press ...

In this GSM based home automation project we are building a home automation system, where one can control the home appliances, using the simple GSM based cell phone, just by sending SMS through his ...