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

A small Arduino library for GSM modules, that just works

Different implementations of existing projects.

the cheapest GPS tracker / GPS locator based on AVR ATTINY2313/4313 or ATMEGA328 (ARDUINO) and SIM800L GSM module

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

SIM800L-Core-Module-KiCad-Footprint

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

SIM800L Device Driver for ESP32

The DIY multipurpose home iot solution.

Footprint with 3D model for Altium Designer

SIM800L GSM module library for the Raspberry Pi to send, receive, delete SMS messages, perform HTTP GET/POST requests and many additional queries

A simple Security/Controlling project based on SIM800L

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

Sharing boat data across NMEA0183/NMEA2000/Bluetooth/IoT/MQTT with Android anchor watcher app and webpage.

Simple library for SIM800 GSM module

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

Send and receive SMS/texts using Python. Low and high level API for sending AT commands over serial bus. Tested with SIM800L.