Arduino SIM900 Library

The SIM900 Arduino Shield Library is a versatile and powerful Arduino library for interfacing with the SIM900 GSM/GPRS module. This library provides a wide range of functionalities for working with the SIM900 module, including sending and receiving calls, sending and receiving SMS, updating and extracting real-time clock data, sending HTTP requests, and retrieving various information about the SIM900 module's status and the network it is connected to.

SIM900 Arduino Shield

SIM900 Vector

Features

• Call Handling — Make and receive calls with ease.
• SMS Communication — Send and receive SMS messages effortlessly.
• Real-Time Clock — Update and extract real-time clock data from the module.
• HTTP Requests — Send HTTP requests and retrieve responses.
• Information Retrieval — Gather data about network operator, module status, SIM card information, and more.
• Phonebook Management — Store and retrieve phonebook accounts.
• Extensive Documentation — Well-documented code and usage examples.

Getting Started

To use this library, follow these steps:

1. Download the library from the GitHub repository.
2. Open your Arduino IDE.
3. Click on Sketch -> Include Library -> Add .zip library...
4. Select the downloaded library ZIP file.

Alternatively, you can click on the Library Manager then type "SIM900" to install this library for your projects.

Examples

The repository includes a variety of example sketches that demonstrate the library's features. You can find them in the examples folder.

 #include <SoftwareSerial.h>
#include <sim900.h>

SoftwareSerial shieldSerial(7, 8);

void setup() {
  Serial.begin(9600);

  SIM900 sim900(&shieldSerial);
  Serial.println(
    sim900.sendSMS("+XXxxxxxxxxxx", "Hello, world!!")
      ? "Sent!" : "Not sent."
  );
  sim900.close();
}

void loop() { }