A small Arduino library for GSM modules, that just works

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Arduino HTTP & FTP client for SIM800L/SIM800 boards to perform GET and POST requests to a JSON API as well as FTP uploads.

GSM Library for SIMCOM Modules on Arduino.

The SIM800L Arduino Library is a simple and easy-to-use library for the SIM800L module, allowing for quick and efficient communication with the module using the Arduino platform.

Arduino-compatible MCU firmware code for sensor-, telemetry-, and gateway-appliances.

A BareBone Arduino Library For SIM800 Modules

OBD2 to MQTT for Home Assistant

Internetgateway with TTGO T-Call

IoT Communications Module for Energy Access. An easy way to get production ready, bi-directional communications for your IoT embedded device. Proiect supported by the EnAccess Foundation - https://enaccess.org

GSM SIM900 Library for Arduino

Enables GSM/GRPS network connection using the GSM/GPRS modules. Use this library to make/receive voice calls, to send and receive SMS using Generic GSM/GPRS modules, such as u-blox SARA-U201 module.This library also allows you to connect to internet through the GPRS networks. You can either use Web Clients and Servers.

Send data to firebase cloud using SIM800 (GPRS Module) and Atmega328p (Arduino) .

GPS tracker / send data over TTGO T-Call SIM800 GPRS

Sending pictures from Esp32cam to FTP server using GSM. Software plus hardware setup.

Simple library for SIM800 GSM module

This is a slimmer version of the Adafruit FONA library intended for only TCP connections using the cheap SIM800 breakout modules.

This is an Arduino library for the Saleng GSM Shield from Layad Circuits and with pin changes, may also work with any SIM900/SIM800 based baords

Simple M2M/IOT at command based TCP library for SIM800 in arduino

OTA Update of ESP32 using SIM800C and AT commands