A small Arduino library for GSM modules, that just works

Simple GSM shield Manager for Blynk and ESP32 / ESP8266 boards, with or without SSL, configuration data saved in SPIFFS / EEPROM. This library enables user to include both Blynk GSM/GPRS and WiFi libraries in one sketch, run both WiFi and GSM/GPRS simultaneously, or select one to use at runtime after reboot.

Arduino framework for 4G LTE Cat.1, GSM and NB-IoT Modules from Quectel and Neoway

Farm Monitoring System uses arduino ide and basic sensor modules to address various issues of farming.

Library, now using AsyncWebServer instead of (ESP8266)WebServer, for enabling GSM/GPRS and WiFi running simultaneously as well as configuring/auto(re)connecting at runtime GSM shields to Internet and Blynk and ESP8266/ESP32 WiFi modules to best or available MultiWiFi APs and MultiBlynk servers. Enable adding dynamic custom parameters from sketch…

A much more comprehensive library for Arduino SIM900 shield.

A basic implementation of Arduino serial communication with gsm-sim800l

Arduino Uno + GSM Shield + PIR sensor = sweet simple alarm!

A completer Home Security system based on Arduino with multiple sensors to monitor status, pin based entry and locking, GSM shield to give instrusion alerts via SMS. Read Read_me.txt for Additional Details and How to use the project.

it's gsm library for sim900a boards and its equivalent boards

FoxHuntController for Arduino

The unit receives a textmessage to the GSM-module, if the message is correct, it sends it to a RPi using NRF24L01 2,4GHZ modules. The pythonscript translates message and takes picture with picamera and sends it to a Gmailadress!

Arduino DumbPhone. 2 buttons. 2 LEDs. It can: make calls, receive calls. Send SMS and receive SMS mesages.