Library sim800l for Arduino UNO (maybe sim900l work)

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.

A BareBone Arduino Library For SIM800 Modules

Different implementations of existing projects.

A small Arduino library for GSM modules, that just works

ESP32 library for Simcom gsm modules that aims to provide stable tcp/udp connection support

An Arduino Library for GSM SIM800L, compatible with Arduino UNO, MEGA, DUO, ESP8266, ESP32

A simple Security/Controlling project based on SIM800L

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

Simple library for SIM800 GSM module

Connecting Sim800L with Arduino Pro Micro or Mini (Atmega32u4/Atmega328p) and Nokia 5110 (PCD8544) display

This project uses TTGO T-Call module to deal with calls and messages, monitor its surroundings and alert user via call or message if any environmental changes detected by ultrasound sensor.

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

Simple and robust C++ library to handle SIM800L chip for sending and receiving SMS

A basic implementation of Arduino serial communication with gsm-sim800l

Simple APRS-IS tracker via GSM

Receive SMS for a SIM-card and forward them to a server

This is a modified library for the SIM800L EVB2.0 GSM module to operate with Arduino boards

OTP Broker using ESP32 and SIM800l