Arduino libraries and example to use with mosquitto mqtt (PubSubClient) and Sim800/900.

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.

How to send a GET and POST request with GSM/GPRS module. This is useful for retrieving data from the Web and sending data to a web server. Tested on SIM900, SIM7000e, SIM800L GSM modules. Could work with other GSM modules that are operated by AT commands

This sketch code to get geolocation with SIM900 & Gps NEO-6M and send the coordinates to a API.

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.

Flask server communication using Python <--->Arduino IoT node which sends location update via GSM on HTTP

A system to prevent children from being forgotten in the car

pymodem, gprs, pRPi3

Detection and warning system for a two-wheeled vehicle based on location via SMS

An Android app that connect to ThingSpeak and display the data.