SIM900A is a GSM module that function like phone. It can send a message, call a phone number and use GPRS to send data. Here’s the simple feature taken from it’s datasheet :

This code sets up communication between an Arduino and a GSM module (SIM900A) using SoftwareSerial. It allows the user to send an SMS or make a call by sending specific …

In this article, we are going to see how to interface the GSM Module with Arduino. There are different kinds of GSM modules available on the market. We are using the most popular …

Sep 8, 2021 · We will explain briefly what Sim900A is and what is GSM, GPRS is and then illustrate AT command communication between Arduino and the GSM module. The example …

Sep 3, 2024 · I'm having some trouble with my SIM900A GSM module. Here’s a summary of the issue: Power via Arduino Board: When I power the SIM900A through my Arduino board, the …

Oct 22, 2017 · This blog post provides a good starting point for beginners interested in using the SIM900A GSM module with an Arduino Uno. It clearly explains the basic communication …

In this guide, we will interface SIM900A with Arduino Uno for internet connectivity, sending and receiving SMS, and making voice calls via the GSM library.

Mar 13, 2024 · With a little help from a GSM module (like the kind in your cellphone), you can start sending messages and calling from your Arduino project. This article will show you how, step …

Apr 19, 2025 · GSM Sim900A with Arduino: Following are some of the projects which explain GSM Sim900A interfacing with Arduino and GSM Sim900A Arduino Code. Following are the …

Using the Sim900/sim900A Mini Module With Arduino UNO: There are lots of websites that talk about using a GSM shield with an Arduino, in addition to the Arduino IDE itself. There are also …